• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    ENERGY ADAPTER; AND ELECTRONIC DEVICE.An electronic device and a power adapter are provided. The power adapter comprises a power circuit, a main control circuit, a potential adjustment circuit, a current detection circuit, a voltage detection circuit and an output switching circuit. When conventional charging or fast charging is performed on the battery in the electronic device, the main control circuit determines whether the output current of the power adapter is greater than a current threshold according to the current detection signal and determines whether the output voltage of the power adapter is greater than a voltage threshold according to the voltage detection signal; if the output current of the power adapter is greater than the current threshold and / or the output voltage of the power adapter is greater than the voltage threshold, the main control circuit controls the output switching circuit to turn off the direct current output from the power adapter.
    公开号:BR112016016943A2
    申请号:R112016016943-3
    申请日:2014-05-12
    公开日:2020-09-24
    发明作者:Jialiang Zhang；Kewei Wu；Jun Zhang；Fuchun Liao；Nianfeng Liu；Yuanxiang Hu
    申请人:Guangdong Oppo Mobile Telecommunications Corp., Ltd.；
    IPC主号:
    专利说明:

    [001] [001] This application is a Brazilian national phase application based on an International Application No PCT / CN2014 / 077287, filed on May 12, 2014, which is based on and claims the priority of Chinese Patent Application No 201410043139.4, filed on January 28, 2014, the contents of which are hereby incorporated by reference. TECHNICAL FIELD OF THE INVENTION
    [002] [002] The present disclosure generally refers to the technical field of charging, and more particularly, to an electronic device and a power adapter. HISTORY OF THE INVENTION
    [003] [003] Currently, most electronic devices charge a battery when obtaining direct current from a power adapter through its communication interface. However, in the related art, in order to reduce the charging time during battery charging, the charging current can be increased by the power adapter to achieve the goal of fast charging the battery. However, when charging the battery in either a conventional constant voltage mode or with increased charging current, if a charging current and / or charging voltage of the battery is too high during charging, the battery will be damaged due to overvoltage. and / or overcurrent loading. Therefore, in the related art, an overcurrent protection and / or an overvoltage protection cannot be performed for the battery when the power adapter performs a conventional charge or quick charge on the battery in the electronic device. SUMMARY OF THE INVENTION
    [004] [004] An embodiment of the present disclosure provides a power adapter in order to solve a problem in the related technique that an overcurrent protection and / or an overvoltage protection cannot be performed for a battery when the power adapter performs a charge conventional or fast battery charging in the electronic device.
    [005] [005] A realization of the present revelation is carried out as follows. A power adapter is provided, which includes a communication interface, through which the power adapter charges a battery in an electronic device and performs data communication with the electronic device. The power adapter includes an EMI filter circuit, a high voltage filtering and transforming circuit, an isolation transformer, an output filtering circuit and a voltage and control tracking circuit;
    [006] [006] The power adapter also includes a power circuit, a main control circuit, a potential adjustment circuit, a current detection circuit, a voltage detection circuit and an output switching circuit.
    [007] [007] An input end of the power circuit is connected to a secondary end of the isolation transformer; a power end of the main control circuit, a power end of the potential adjustment circuit and a power end of the current detection circuit are collectively connected to an output end of the power circuit; both a high level end of the main control circuit and a high level end of the potential adjustment circuit are connected to a positive output end of the output filter circuit; a potential adjustment end of the potential adjustment circuit is connected to the voltage and control tracking circuit; a direct current input end of the current detection circuit is connected to the positive output end of the output filter circuit; a current response end of the current detection circuit is connected to a current detection end of the main control circuit; a clock output end of the main control circuit is connected to a clock output end of the potential adjustment circuit; a data output end of the main control circuit is connected to a data input end of the potential adjustment circuit; a first detection end and a second detection end of the voltage detection circuit are connected to a direct current output end of the current detection circuit and a negative output end of the output filter circuit, respectively; a first output end and a second output end of the voltage sensing circuit are connected to a first voltage sensing end and a second voltage sensing end of the main control circuit, respectively; an input end of the output switching circuit is connected to the direct current output end of the current detection circuit; an output end of the output switching circuit and the negative output end of the output filter circuit are connected to the communication interface; and the output end of the output switching circuit is connected to a third detection end of the voltage detection circuit; an earth end of the output switching circuit is connected to the negative output end of the output filter circuit; a controlled end of the output switching circuit is connected to a switching control end of the main control circuit; one power end of the output switching circuit is connected to the secondary end of the isolation transformer; each of the negative output end of the output filter circuit, the output end of the output switching circuit and a first communication end and a second communication end of the main control circuit is connected to the communication interface.
    [008] [008] The power circuit obtains power supply from the isolation transformer and provides the power supply for the main control circuit, the potential adjustment circuit and the current detection circuit; the potential adjustment circuit activates the voltage tracking and control circuit to adjust an output voltage of the isolation transformer according to the control signal sent by the main control circuit; the current detection circuit detects an output current from the power adapter and feeds a current detection signal to the main control circuit, and the voltage detection circuit detects an output voltage from the power adapter and feeds a signal voltage detection for the main control circuit; the output switching circuit turns on or off a direct current output from the power adapter according to a switching control signal sent by the main control circuit.
    [009] [009] When a conventional charge or a quick charge is performed on the battery in the electronic device, the main control circuit determines whether the output current of the power adapter is greater than a current threshold according to the current detection signal and determines whether the output voltage of the power adapter is greater than a voltage threshold according to the voltage detection signal; if the output current of the power adapter is greater than the current threshold and / or the output voltage of the power adapter is greater than the voltage threshold, the main control circuit controls the output switching circuit to turn off the direct current output from the power adapter.
    [010] [010] During data communication between the main control circuit and the electronic device, if the electronic device determines that the output current of the power adapter is greater than the current threshold and / or the output voltage of the power adapter power is greater than the voltage threshold, and feeds a load interrupt instruction to the main control circuit, the main control circuit controls the output switching circuit to disconnect the direct current output from the power adapter according to the load interrupt instruction.
    [011] [011] An accomplishment of the present disclosure is to provide an electronic device, including a battery, with the power adapter described above.
    [012] [012] In at least one embodiment of the present disclosure, the power adapter, which includes the power circuit, the main control circuit, the potential adjustment circuit, the current detection circuit, the voltage detection circuit and the output switching circuit is provided for the electronic device. The main control circuit determines whether the output current of the power adapter is greater than the current threshold, and determines whether the output voltage of the power adapter is greater than the voltage threshold. If the output current is greater than the current threshold and / or the output voltage is greater than the voltage threshold, the main control circuit controls the output switching circuit to disconnect the direct current output from the power adapter . In addition, if the electronic device determines that an overcurrent and / or an overvoltage occurs at the output of the power adapter and feeds the load interrupt instruction to the main control circuit, the main control circuit controls the output switching circuit. to disconnect the direct current output from the power adapter according to the charge interruption instruction, so that overcurrent and / or overvoltage protection is carried out for the battery. BRIEF DESCRIPTION OF THE DRAWINGS
    [013] [013] Fig. 1 is a block diagram of a power adapter provided by an embodiment of the present disclosure.
    [014] [014] Fig. 2 is a schematic circuit diagram of a power adapter provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION
    [015] [015] To clarify the objectives, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention are hereinafter described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are merely used for explanation, but not used to limit the present disclosure.
    [016] [016] Fig. 1 is a block diagram of a power adapter provided by an embodiment of the present disclosure. For purposes of illustration, only parts related to the realizations of the present disclosure are shown, which will be described in more detail below.
    [017] [017] The power adapter 100 provided by an embodiment of the present disclosure includes a communication interface 10, the power adapter 100 charges a battery 201 in an electronic device 200 and performs data communication with the electronic device 200 through the interface communication 10.
    [018] [018] The power adapter 100 includes an EMI filter circuit 101, a high voltage filter and transformation circuit 102, an isolation transformer 103, an output filter circuit 104 and a voltage and control tracking circuit 105. After electromagnetic interference filtering is performed on the electrical supply by the EMI filter circuit 101, the high voltage transformation and filter circuit 102 performs a transformation and filter process and produces a high voltage direct current, which is produced for the output filter circuit 104 after electrical isolation in the isolation transformer 103 to be filtered and used to charge the battery 201. The voltage and control tracking circuit 105 adjusts an output voltage of the isolation transformer 103 accordingly with an output voltage of the output filter circuit 104.
    [019] [019] Power adapter 100 further includes: a power circuit 106, a main control circuit 107, a potential adjustment circuit 108, a current detection circuit 109, a voltage detection circuit 110 and a circuit switching output
    [020] [020] See Fig. 1 and Fig. 2, one input end of the power circuit 106 is connected to a secondary end of the isolation transformer 103. One power end of the main control circuit 107, one power end of the circuit set point 108 and a power end of current detection circuit 109 are collectively connected to an output end of power circuit 106. Both the high level end of main control circuit 107 and a high level end of the Potential adjustment circuit 108 is connected to a positive output end of output filter circuit 104. The high-level end of main control circuit 107 is connected to the positive output end of output filter circuit 104 by means of a second end of the twentieth resistor R20 (i.e., a direct current output end of the current detection circuit 109). A potential adjustment end of the potential adjustment circuit 108 is connected to the voltage and control tracking circuit 105. A direct current input end of the current detection circuit 109 is connected to the positive output end of the filter circuit. output 104. A current response end of current detection circuit 109 is connected to a current detection end of main control circuit 107. A clock output end of main control circuit 107 is connected to an end clock input input of potential adjustment circuit 108. One data output end of main control circuit 107 is connected to one data input end of potential adjustment circuit 108. A first detection end and a second end voltage detection circuit 110 are connected to the direct current output end of the voltage protection 109 and a negative output end of output filter circuit 104, respectively.
    [021] [021] The power circuit 106 obtains power supply from the isolation transformer 103 and provides the power supply for the main control circuit 107, the potential adjustment circuit 108 and the current detection circuit 109; when a quick charge is made on the battery 201 in the electronic device 200, the potential adjustment circuit 108 drives the voltage tracking and control circuit 105 to adjust an output voltage of the isolation transformer 103 according to a control signal sent by main control circuit 107; the current detection circuit 109 detects an output current from the power adapter 100 and feeds a current detection signal to the main control circuit 107, and the voltage detection circuit 110 detects an output voltage from the power adapter 100 and feeds a voltage detection signal to main control circuit 107; output switching circuit 111 turns a direct current output from power adapter 100 on or off according to a switching control signal sent by main control circuit 107.
    [022] [022] When conventional charging or fast charging is performed on battery 201 in electronic device 200, main control circuit 107 determines whether the output current of power adapter 100 is greater than the current threshold according to the signal current detection, and determines whether the output voltage of the power adapter 100 is greater than a voltage threshold according to the voltage detection signal; if the output current of the power adapter 100 is greater than the current threshold and / or the output voltage of the power adapter 100 is greater than the voltage threshold, the main control circuit 107 controls the output switching circuit 111 to disconnect the direct current output from the power adapter 100.
    [023] [023] During data communication between main control circuit 107 and electronic device 200, if electronic device 200 determines that the output current of the power adapter 100 is greater than the current threshold and / or the voltage output of power adapter 100 is greater than the voltage threshold, and feeds a load interrupt instruction to main control circuit 107, main control circuit 107 controls output switching circuit 111 to turn off the current output power adapter 100 in accordance with the charging interruption instruction.
    [024] [024] In at least one embodiment, data communication between main control circuit 107 and electronic device 200 is performed during charging. During this process, in both conventional charging mode and fast charging mode, main control circuit 107 would send the output current and the output voltage from the power adapter 100 to the electronic device 200. The electronic device 200 determines, according to the output current and the output voltage of the power adapter 100, if an overcurrent and / or overvoltage occurs during charging. The determined process is the same as the process in which the main control circuit 107 determines the output current and the output voltage of the power adapter 100, so that the electronic device 200 can respond to a stop charging instruction to inform the main control circuit 107 of shutting off the direct current output of the power adapter 100 when the electronic device 200 determines that an overcurrent and / or overvoltage occurs at the output of the power adapter 100. In addition, the electronic device 200 can close its interface of communication actively when determining that an overcurrent and / or overvoltage occurs at the output of the power adapter 100, so as to disconnect from the power adapter 100, so that the overcurrent and / or overvoltage protection can be carried out actively.
    [025] [025] Fig. 2 is a schematic circuit diagram of a power adapter provided by an embodiment of the present disclosure. For purposes of illustration, only the parts related to the realizations of the present disclosure are shown, which will be described in detail below.
    [026] [026] Power circuit 106 includes: a first capacitor C1, a voltage stabilization chip U1, a second capacitor C2, a first inductor L1, a second inductor L2, a first diode D1, a second diode D2, a third capacitor C3, a first resistor R1 and a second resistor R2.
    [027] [027] A collective node at the first end of the first capacitor C1, an input pin Vin and an enable EN pin of the voltage stabilization chip U1, is configured as the input end of the power circuit 106. A second end of the first C1 capacitor and a GND ground pin of the voltage stabilization chip U1 are collectively grounded. A switching pin SW of the voltage stabilization chip U1 and a first end of the second capacitor C2 are collectively connected to a first end of the first inductor L1. An internal BOOST switching pin of the voltage stabilization chip U1 and a second end of the second capacitor C2 are collectively connected to a cathode of the first diode D1. A response voltage pin FB of the voltage stabilization chip U1 is connected to a first end of the first resistor R1 and a first end of the second resistor R2, respectively. A second end of the first inductor L1 and a cathode of the second diode D2 are collectively connected to a first end of the second inductor. A collective node formed by the collective connection of a second end of the second inductor L2, an anode of the first diode D1, a second end of the first resistor R1 and a first end of the third capacitor C3, is configured as the output end of the power circuit. 106. An anode of the second diode D2, a second end of the second resistor R2 and a second end of the third capacitor C3 are collectively grounded. After using the voltage stabilization chip U1 as a core to perform the process of converting voltage to a voltage at the secondary end of isolation transformer 103, power circuit 106 produces a + 3.3V voltage to provide power supply for main control circuit 107, potential adjustment circuit 108 and current detection circuit 109. The voltage stabilization chip U1 can be a male DC / DC converter with a Model No MCP16301.
    [028] [028] Main control circuit 107 includes: a main control chip U2, a third resistor R3, a voltage chip reference U3, a fourth resistor R4, a fifth resistor R5, a fourth capacitor C4, a sixth resistor R6 , a seventh resistor R7, a first NMOS Q1 transistor, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13 and a fourteenth resistor R14 .
    [029] [029] A VDD power pin on the main control chip U2 is configured as the power end of the main control circuit 107. A ground pin
    [030] [030] Potential adjustment circuit 108 includes: a fifteenth resistor R15, a sixteenth resistor R16, a digital potentiometer U4, a seventeenth resistor R17, an eighteenth resistor R18, a fifth capacitor C5, a sixth capacitor C6 and a nineteenth R19 resistor.
    [031] [031] A collective node of a first end of the fifteenth resistor R15, a first end of the sixteenth resistor R16, a VDD power pin of the digital potentiometer U4 and a first end of the fifth capacitor C5, is configured as the power end. of the potential adjustment circuit 108. A second end of the fifth capacitor C5, a first end of the sixth capacitor C6, a VSS ground pin of the digital potentiometer U4 and a first end of the seventeenth resistor R17 are collectively grounded. A second end of the sixth capacitor C6 is connected to the VDD power pin of the digital potentiometer U4. A collective node between a second end of the fifteenth resistor R15 and a SDA serial data pin of the digital potentiometer U4 is configured as the data input end of the potential adjustment circuit 108. A collective node between a second end of the sixteenth resistor R16 and a SCL clock input pin of digital potentiometer U4 are configured as the clock input end of potential adjustment circuit 108. A zero address pin A0 of digital potentiometer U4 is grounded. A first P0A potential wiring pin from digital potentiometer U4 and a first end of the eighteenth resistor R18 are collectively connected to a second end of the seventeenth resistor R17. A second end of the eighteenth resistor R18 and a second P0B potential wiring pin of the digital potentiometer U4 are collectively connected to a first end of the nineteenth resistor R19. A second end of the nineteenth resistor R19 is configured as the high-level end of the potential adjustment circuit
    [032] [032] Current detection circuit 109 includes: a twenty-second resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a seventh capacitor C7, an eighth capacitor C8, a current-detection chip U5, a twenty-third resistor resistor R23, a ninth capacitor C9, a tenth capacitor C10 and a twenty-fourth resistor R24.
    [033] [033] A first end and a second end of the twentieth resistor R20 are configured as the direct current input end and the direct current output end of the current detection circuit 109, respectively. A first end of the twenty-first resistor R21 and a first end of the twenty-second resistor R22 are connected to a first end and a second end of the twenty-first resistor R20, respectively. A second end of the twenty-first resistor R21 and a first end of the seventh capacitor C7 are collectively connected to a positive input pin IN + of the current detection chip U5. A second end of the twenty-second resistor R22 and a first end of the eighth capacitor C8 are collectively connected to a negative input pin IN- of the current detection chip U5. A collective node between a V + power pin of the U5 current detection chip and a first end of the ninth capacitor C9 is configured as the power end of the current detection circuit.
    [034] [034] Voltage detection circuit 110 includes: a twenty-fifth resistor R25, a twenty-sixth resistor R26, an eleventh capacitor C11, a twelfth capacitor C12, a twenty-seventh resistor R27 and a twenty-eighth resistor R28.
    [035] [035] A first end of the twenty-fifth resistor R25 is configured as the first detection end of the voltage detection circuit 110. A collective node of a second end of the twenty-fifth resistor R25, a first end of the twenty-sixth resistor R26 and a first end of the eleventh capacitor C11 is configured as a second output end of the voltage detection circuit 110. A second end of the twenty-sixth resistor R26 is configured as a second detection end of the voltage detection circuit 110. A second end of the eleventh capacitor C11, a first end of the twelfth capacitor C12 and a first end of the twenty-seventh resistor R27 are collectively connected to the second end of the twenty-sixth resistor R26. A collective node of a second end of the twelfth capacitor C12, a second end of the twenty-seventh resistor R27 and a first end of the twenty-eighth resistor R28 is configured as the first output end of the voltage detection circuit 110. The second end of the twenty-eighth resistor R28 is configured as the third detection end of voltage detection circuit 110.
    [036] [036] Output switching circuit 111 includes: a twenty-ninth resistor R29, a thirty-th resistor R30, a thirteenth capacitor C13, a thirty-first resistor R31, a first transistor type NPN N1, a thirty-second resistor R32, a second type NPN transistor N2, a third diode D3, a voltage stabilization diode ZD, a thirty-third resistor R33, a thirty-fourth resistor R34, a thirty-fifth resistor R35, a second NMOS Q2 transistor and a third NMOS Q3 transistor.
    [037] [037] A first end of the twenty-ninth resistor R29 is configured as the controlled end of the output switching circuit 111. A second end of the twenty-ninth resistor R29 and a first end of the thirty-resistor R30 are collectively connected to a base of the first transistor type NPN N1. A first end of the thirteenth capacitor C13, a first end of the thirty-first resistor R31 and a first end of the thirty-second resistor R32 are collectively connected to a cathode of the third diode D3. An anode of the third diode D3 is configured as the power supply end of the output switching circuit
    [038] [038] Based on the power adapter 100 mentioned above, the achievements of the present disclosure further provide an electronic device. The electronic device includes a battery 201 and is further provided with the power adapter 100 mentioned above.
    [039] [039] In the present disclosure, power adapter 100 includes power circuit 106, main control circuit 107, potential adjustment circuit 108, voltage detection circuit 109, voltage detection circuit 110 and the output switching circuit 111, is provided for the electronic device 200. The main control circuit 107 determines whether the output current of the power adapter 100 is greater than the current threshold, and determines whether the output voltage of the power adapter 100 is greater than the voltage threshold. If the output current of the power adapter 100 is greater than the current threshold and / or the output voltage of the power adapter 100 is greater than the voltage threshold, the main control circuit 107 controls the output switching circuit 111 to turn off the direct current output of the power adapter 100. In addition, if the electronic device 200 determines that an overcurrent and / or overvoltage occurs at the output of the power adapter 100, and feeds back the load interrupt instruction to the power circuit. main control 107, main control circuit 107 controls output switching circuit 111 to switch off the direct current output of the power adapter 100 according to the load interruption instruction, so that the overcurrent protection and / or overvoltage is applied to battery 201.
    [040] [040] The foregoing description is intended only for the preferred embodiments of the present disclosure, but not used to limit the present disclosure. All modifications, equivalents, variants and improvements made within the spirit and principle of the present disclosure are covered by the scope of protection of the present disclosure.
    权利要求:
    Claims (17)
    [1]
    1. ENERGY ADAPTER, characterized by comprising a communication interface through which the power adapter charges a battery in an electronic device and performs data communication with the electronic device, an EMI filter circuit, a transformation and filter circuit high voltage, an isolation transformer, an output filtering circuit and a voltage and control tracking circuit, in which the power adapter further comprises a power circuit, a main control circuit, a voltage adjustment circuit potential, a current detection circuit, a voltage detection circuit and an output switching circuit; an input end of the power circuit is connected to a secondary end of the isolation transformer; a power end of the main control circuit, a power end of the potential adjustment circuit and a power end of the current detection circuit are collectively connected to an output end of the power circuit; a high level end of the main control circuit and a high level end of the potential adjustment circuit are connected to a positive output end of the output filter circuit; a potential adjustment end of the potential adjustment circuit is connected to the voltage tracking and control circuit; a direct current input end of the current detection circuit is connected to the positive output end of the output filter circuit; a current response end of the current detection circuit is connected to a current detection end of the main control circuit; a clock output end of the main control circuit is connected to a clock input end of the potential adjustment circuit; a data output end of the main control circuit is connected to a data input end of the potential adjustment circuit; a first detection end and a second detection end of the voltage detection circuit are connected to a direct current output end of the current detection circuit and a negative output end of the output filter circuit, respectively; a first output end and a second output end of the voltage sensing circuit are connected to a first voltage sensing end and a second voltage sensing end of the main control circuit, respectively; an input end of the output switching circuit is connected to the direct current output end of the current detection circuit; an output end of the output switching circuit is connected to a third detection end of the voltage detection circuit; an earth end of the output switching circuit is connected to the negative output end of the output filter circuit; a controlled end of the output switching circuit is connected to a switching control end of the main control circuit; one power end of the output switching circuit is connected to the secondary end of the isolation transformer; each of the negative output end of the output filter circuit, output end of the output switching circuit and first communication end and second communication end of the main control circuit is connected to the communication interface; power circuit obtains power source from the isolation transformer and provides the power source for the main control circuit, the potential adjustment circuit and the current detection circuit; when a quick charge is performed on the battery in the electronic device, the potential adjustment circuit drives the voltage tracking and control circuit to adjust an isolation transformer output voltage according to a control signal sent by the control circuit main; the current detection circuit detects an output current from the power adapter and feeds the current detection signal to the main control circuit, and the voltage detection circuit detects an output voltage from the power adapter and feeds the signal voltage detection for the main control circuit; the output switching circuit turns the direct current output of the power adapter on or off according to the switching control signal sent by the main control circuit; when a conventional charge or a quick charge is performed on the battery in the electronic device, the main control circuit determines whether the output current of the power adapter is greater than the current threshold according to the current detection signal and determines whether the output voltage of the power adapter is greater than the voltage threshold according to the voltage detection signal; if the output current of the power adapter is greater than the current threshold and / or the output voltage of the power adapter is greater than the voltage threshold, the main control circuit controls the output switching circuit to turn off the direct current output from the power adapter; during data communication between the main control circuit and the electronic device, if the electronic device determines that the output current of the power adapter is greater than the current threshold and / or the output voltage of the power adapter is greater than the voltage threshold, and feeds a load interrupt instruction to the main control circuit, the main control circuit controls the output switching circuit to turn off the direct current output from the power adapter according to the charging interruption.
    [2]
    2. ADAPTER, according to claim 1, in which the power circuit is characterized by comprising: a first capacitor, a voltage stabilization chip, a second capacitor, a first inductor, a second inductor, a first diode, a second diode, a third capacitor, a first resistor and a second resistor; where the collective node of a first end of the first capacitor, an input power pin and an enable pin of the voltage stabilization chip is configured as the input end of the power circuit, a second end of the first capacitor and a ground pin of the voltage stabilization chip are grounded collectively, a switch pin of the voltage stabilization chip and a first end of the second capacitor are connected collectively to a first end of the first inductor; an internal switching pin on the voltage stabilization chip and a second end of the second capacitor are collectively connected to a cathode of the first diode; a response voltage pin from the voltage stabilization chip is connected to a first end of the first resistor and a first end of the second resistor, respectively; a second end of the first inductor and a cathode of the second diode are collectively connected to a first end of the second inductor; a collective node formed by the collective connection of a second end of the second inductor, an anode of the first diode, a second end of the first resistor and a first end of the third capacitor is configured as the output end of the power circuit, an anode of the second diode , a second end of the second resistor and a second end of the third capacitor are collectively grounded.
    [3]
    3. ADAPTER, according to claim 1, in which the main control circuit is characterized by comprising: a main control chip, a third resistor, a reference voltage chip, a fourth resistor, a fifth resistor, a fourth capacitor, sixth resistor, seventh resistor, first NMOS transistor, eighth resistor, ninth resistor, tenth resistor, eleventh resistor, twelfth resistor, thirteenth resistor and fourteenth resistor; wherein the main control chip's power pin is configured as the power end of the main control circuit; a ground pin on the main control chip is grounded; a first input / output pin on the main control chip is suspended; a first end of the third resistor is connected to the power pin on the main control chip; a second end of the third resistor and a first end of the fourth resistor are collectively connected to a positive terminal on the reference voltage chip; a negative terminal of the reference voltage chip is grounded; a vacant pin on the reference voltage chip U3 is suspended; a second end of the fourth resistor is connected to a second input / output pin on the main control chip; a third input / output pin of the main control chip is configured as the current sensing end of the main control circuit; a fourth input / output pin on the main control chip is connected to a first end of the fifth resistor; a second end of the fifth resistor and a first end of the fourth capacitor are collectively connected to the power pin on the main control chip; a second end of the fourth capacitor is grounded; a fifth input / output pin of the main control chip is configured as the switching control end of the main control circuit; a sixth input / output pin from the main control chip is connected to a first end of the sixth resistor; a second end of the sixth resistor and a grid electrode of the first NMOS transistor are collectively connected to a first end of the seventh resistor; a second end of the seventh resistor and a source electrode from the first NMOS transistor are collectively grounded; a discharge electrode from the first NMOS transistor is connected to a first end of the eighth resistor; a second end of the eighth resistor is configured as a high-level end of the main control circuit; a seventh input / output pin and an eighth input / output pin of the main control chip are configured as the clock output end and the data output end of the main control circuit, respectively; a tenth input / output pin and a ninth input / output pin of the main control chip are configured as the first voltage sensing end and the second voltage sensing end of the main control circuit, respectively; an eleventh input / output pin and an twelfth input / output pin of the main control chip are connected to a first end of the ninth resistor and a first end of the eleventh resistor, respectively; a first end of the eleventh resistor and a first end of the twelfth resistor are connected to a second end of the ninth resistor and a second end of the eleventh resistor, respectively; a second end of the eleventh resistor and a second end of the twelfth resistor are collectively grounded; a first end of the thirteenth resistor and a first end of the fourteenth resistor are connected to the second end of the ninth resistor and the second end of the thirteenth resistor, respectively; a second end of the thirteenth resistor and a second end of the fourteenth resistor are collectively connected to the power pin of the main control chip; the second end of the ninth resistor and the second end of the tenth resistor are configured as the first communication end and the second communication end of the main control circuit, respectively.
    [4]
    4. ADAPTER, according to claim 1, in which the potential adjustment circuit is characterized by comprising: a fifteenth resistor, a sixteenth resistor, a digital potentiometer, a seventeenth resistor, an eighteenth resistor, a fifth capacitor, a sixth capacitor and a nineteenth resistor; wherein the collective node of a first end of the fifteenth resistor, a first end of the sixteenth resistor, a power pin of the digital potentiometer and a first end of the fifth capacitor is configured the power end of the potential adjustment circuit; a second end of the fifth capacitor, a first end of the sixth capacitor, a ground pin of the digital pot and a first end of the seventeen resistor are collectively grounded; a second end of the sixth capacitor is connected to the power pin of the digital pot; a collective node between a second end of the fifteenth resistor and a serial data pin of the digital potentiometer is configured as the data input end of the potential adjustment circuit; a collective node between a second end of the sixteenth resistor and a clock input pin of the digital potentiometer is configured as the clock input end of the potential adjustment circuit; a digital potentiometer zero address pin is grounded; a first pin of potential wiring from the digital potentiometer and a first end of the eighteenth resistor are collectively connected to a second end of the seventeenth resistor; a second end of the 18th resistor and a second potential wiring pin of the digital potentiometer are collectively connected to a first end of the 19th resistor; a second end of the nineteenth resistor is configured as the high-level end of the potential adjustment circuit; a digital potentiometer potential selection pin is configured as the potential adjustment end of the potential adjustment circuit.
    [5]
    5. ADAPTER according to claim 1, in which the current detection circuit is characterized by comprising: a twelfth resistor, a twenty-first resistor, a twenty-second resistor, a seventeenth capacitor, an eighth capacitor, a chip current detection, a twenty-third resistor, a ninth capacitor, a tenth capacitor and a twenty-fourth resistor; wherein the first end and second end of the twelfth resistor are configured as the direct current input end and the direct current output end of the current detection circuit, respectively; a first end of the twenty-first resistor and a first end of the twenty-second resistor are connected to a first end and a second end of the twenty-first resistor, respectively; a second end of the twenty-first resistor and a first end of the seventh capacitor are collectively connected to a positive input pin on the current detection chip; a second end of the twenty-second resistor and a first end of the eighth capacitor are collectively connected to a negative input pin on the current detection chip; a collective node between a power pin on the current detection chip and a first end of the ninth capacitor is configured as the power end of the current detection circuit; a vacant pin on the current detection chip is suspended; an output pin of the current detection chip is connected to a first end of the twenty-third resistor, a second end of the twenty-third resistor is configured as the current response end of the current detection circuit; a first end of the tenth capacitor and a first end of the twenty-fourth resistor are collectively connected to the second end of the twenty-third resistor; a second end of the seventh capacitor, a second end of the eighth capacitor, a second end of the ninth capacitor, a second end of the tenth capacitor, a second end of the twenty-fourth resistor, a ground pin, a first reference voltage pin and a second reference voltage pin of the current detection chip are collectively grounded.
    [6]
    6. ADAPTER, according to claim 1, in which the voltage detection circuit is characterized by comprising: a twenty-fifth resistor, a twenty-sixth resistor, an eleventh capacitor, a twelfth capacitor, a twenty-seventh resistor and twenty eighth resistor; wherein the first end of the twenty-fifth resistor is configured as the first detection end of the voltage detection circuit; a collective node of a second end of the twenty-fifth resistor, a first end of the twenty-sixth resistor and an end of the eleventh capacitor is configured as the second output end of the voltage detection circuit; a second end of the twenty-sixth resistor is configured as the second detection end of the voltage detection circuit; a second end of the eleventh capacitor, a first end of the twelfth capacitor and a first end of the twenty-seventh resistor are collectively connected to the second end of the twenty-sixth resistor; a collective node of a second end of the twelfth capacitor, a second end of the twenty-seventh resistor and a first end of the twenty-eighth resistor is configured as the first output end of the voltage detection circuit; the second end of the twenty-eighth resistor is configured as the third detection end of the voltage detection circuit.
    [7]
    7. ADAPTER, according to claim 1, in which the output switching circuit is characterized by comprising: a twenty-ninth resistor, a thirtieth resistor, a thirteenth capacitor, a thirty-first resistor, a first NPN-type transistor, a thirty-second resistor, a second NPN-type transistor, a third diode, a voltage stabilizing diode, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a second NMOS transistor and a third NMOS transistor; wherein the first end of the twenty-ninth resistor is configured as the controlled end of the output switching circuit; a second end of the twenty-ninth resistor and a first end of the thirty resistor are collectively connected to a base of the first NPN-type transistor; a first end of the thirteenth capacitor, a first end of the thirty-first resistor and a first end of the thirty-second resistor are collectively connected to a cathode of the third diode; an anode of the third diode is configured as the power end of the output switching circuit; a second end of the thirty-first resistor and a base of the second NPN-type transistor are collectively connected to a collector of the first NPN-type transistor; a second end of the thirty-second resistor, a cathode of the voltage stabilization diode and a first end of the thirty-third resistor are collectively connected to a collector of the second NPN-type transistor; a second end of the thirtieth resistor, a second end of the thirteenth capacitor, an emitter of the first NPN type transistor, an emitter of the second NPN type transistor and a voltage stabilization diode anode are collectively grounded; a second end of the thirty-third resistor, a first end of the thirty-fourth resistor, a first end of the thirty-fifth resistor, a grid electrode of the second NMOS transistor and a grid electrode of the third NMOS transistor are collectively connected; a second end of the thirty-fourth resistor is configured as the earth end of the output switching circuit; a discharge electrode from the second NMOS transmitter is configured as the input end of the output switching circuit; a source electrode of the second NMOS transistor and a second end of the thirty-fifth resistor are collectively connected to a source electrode of the third NMOS transistor; a discharge electrode from the third NMOS transistor is configured as the output end of the output switching circuit.
    [8]
    8. ADAPTER, according to claim 1, characterized in that the EMI filter circuit is configured to perform electromagnetic interference filtering in the power supply; high voltage transformation and filter circuit be configured to carry out a transformation and filter process and produce a high voltage direct current; isolation transformer be configured to produce direct high voltage current to the output filter circuit after electrical isolation; output filter circuit be configured to filter the high voltage direct current to charge the battery; and voltage tracking and control circuit be configured to adjust an output voltage of the isolation transformer to an output voltage of the output filter circuit.
    [9]
    9. ADAPTER, according to claim 1, characterized by the data communication between the main control circuit and the electronic device being performed during charging; and the main control circuit sends the output current from the power adapter and the output voltage from the power adapter to the electronic device in both conventional charging and fast charging modes.
    [10]
    10. ADAPTER, according to claim 2, characterized in that the power circuit produces a voltage of + 3.3V to provide power supply for the main control circuit, the potential adjustment circuit and the current detection circuit after use the voltage stabilization chip as a core to perform a voltage conversion process to a voltage at the secondary end of the isolation transformer.
    [11]
    11. ADAPTER, according to claim 2, characterized in that the voltage stabilization chip is a male DC / DC converter.
    [12]
    12. ADAPTER, according to claim 3, characterized in that the main control chip is a single chip microcomputer.
    [13]
    13. ADAPTER, according to claim 4, characterized by the digital potentiometer adjusting an internal movable variable resistor according to a clock signal and a data signal produced by the main control chip, so that a potential in the selection pin of potential of the digital potentiometer is changed.
    [14]
    14. ADAPTER, according to claim 5, characterized in that the twentieth resistor is configured to sample an output current from the output filtering circuit, and the current detection signal is produced for the main control chip by the current according to a voltage between the two ends of the twentieth resistor.
    [15]
    15. ADAPTER, according to claim 5, characterized in that the current detection chip is a current deviation monitor.
    [16]
    16. ADAPTER according to claim 7, characterized in that the second NMOS transistor and the third NMOS transistor are turned on and off simultaneously in order to turn the direct current output of the power adapter on or off.
    [17]
    17. ELECTRONIC DEVICE, characterized by comprising a battery and a power adapter, as defined in any one of claims 1 to 16.
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    同族专利:
    公开号 | 公开日
    KR101861464B1|2018-05-25|
    MY175090A|2020-06-05|
    EP3101767B1|2021-07-07|
    JP6563049B2|2019-08-21|
    ZA201605460B|2018-05-30|
    US20160344209A1|2016-11-24|
    US20180278068A1|2018-09-27|
    US10008868B2|2018-06-26|
    AU2014381132A1|2016-09-01|
    KR20180054930A|2018-05-24|
    PH12016501485A1|2016-08-22|
    CA2936925A1|2015-08-06|
    PH12016501485B1|2016-08-22|
    MX2016009853A|2017-04-25|
    EP3902093A1|2021-10-27|
    CA2936925C|2019-12-31|
    US20170250553A1|2017-08-31|
    JP6563049B6|2019-11-27|
    EP3101767A4|2017-10-04|
    US10218192B2|2019-02-26|
    KR20160132827A|2016-11-21|
    CN106329688A|2017-01-11|
    SG11201606223PA|2016-08-30|
    JP2018110520A|2018-07-12|
    EP3902093A4|2021-10-27|
    CN103795040B|2016-11-09|
    JP6294499B2|2018-03-14|
    CL2016001915A1|2017-04-28|
    CN103795040A|2014-05-14|
    EP3101767A1|2016-12-07|
    CN106329688B|2019-09-27|
    JP2017506055A|2017-02-23|
    WO2015113342A1|2015-08-06|
    AU2014381132B2|2017-04-20|
    CL2017000970A1|2017-11-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5541489A|1994-12-15|1996-07-30|Intel Corporation|Smart battery power availability feature based on battery-specific characteristics|
    JPH11143591A|1997-11-11|1999-05-28|Matsushita Electric Ind Co Ltd|Power unit|
    TW449185U|1999-08-20|2001-08-01|Chroma Ate Inc|Charge/discharge control circuit for battery|
    CN2456354Y|2000-08-18|2001-10-24|伦飞电脑实业股份有限公司|Electric changer|
    US6784641B2|2000-09-20|2004-08-31|Toshiba Battery Co., Ltd.|Uninterruptible power supply|
    JP2003033034A|2001-07-09|2003-01-31|Funai Electric Co Ltd|Ac adaptor and power supply system|
    JP3495731B1|2002-06-14|2004-02-09|サンワ株式会社|Wire mesh unit for landslide prevention|
    JP2004274875A|2003-03-07|2004-09-30|Yamaha Motor Co Ltd|Charging apparatus for motor vehicle|
    US7271568B2|2004-02-11|2007-09-18|Research In Motion Limited|Battery charger for portable devices and related methods|
    CN100401616C|2004-03-17|2008-07-09|美国凹凸微系有限公司|Plower supply managing circuit for battery power supply device|
    US20070230227A1|2004-04-29|2007-10-04|Palmer Douglas A|Universal Power Adapter|
    JP2007110853A|2005-10-14|2007-04-26|Mitsumi Electric Co Ltd|Ac adapter, electronic equipment, and power system|
    JP4269236B2|2006-06-30|2009-05-27|Ｔｏｔｏ株式会社|Dishwasher|
    JP2008035674A|2006-07-31|2008-02-14|Mitsumi Electric Co Ltd|Charging power supply unit|
    JP2008061343A|2006-08-30|2008-03-13|Mitsumi Electric Co Ltd|Charging system, electronic-circuit device having secondary battery, and charging power-supply device|
    JP2008061381A|2006-08-31|2008-03-13|Toshiba Corp|Charging system and method|
    JP2008236878A|2007-03-19|2008-10-02|Hitachi Koki Co Ltd|Charging device|
    CN101640473A|2008-08-01|2010-02-03|鸿富锦精密工业（深圳）有限公司|Power adapter and corresponding electronic equipment|
    JP4735683B2|2008-08-22|2011-07-27|ソニー株式会社|Charging apparatus and charging method|
    CN201278420Y|2008-09-17|2009-07-22|林锋|Intelligent multifunctional electric power socket|
    JP5519138B2|2008-10-07|2014-06-11|株式会社マキタ|Charger|
    DE102008060274A1|2008-12-03|2010-06-10|Fujitsu Siemens Computers Gmbh|Device arrangement comprising an electronic device and a power supply and method for switching a power supply|
    CN102200826B|2010-03-25|2014-09-03|联想有限公司|Power adapter and portable computer|
    WO2012094518A2|2011-01-06|2012-07-12|ACCO Brands Corporation|Mobile device adapter and charger|
    JP2012249410A|2011-05-27|2012-12-13|Sharp Corp|Electric vehicle charger and charging system|
    CN202218051U|2011-07-26|2012-05-09|四川省乐山宇强电机车制造有限公司|Intelligent charger|
    CN103208659B|2012-01-16|2016-12-14|联想有限公司|Electronic equipment charging method and electronic equipment|
    JP5773920B2|2012-03-19|2015-09-02|ルネサスエレクトロニクス株式会社|Charger|
    JP2014166024A|2013-02-25|2014-09-08|Rohm Co Ltd|Power supply device and startup method for the same, ac adapter, electronic apparatus, and power supply system|
    CN103178595B|2013-03-14|2015-06-24|广东欧珀移动通信有限公司|Mobile phone adapter|
    CN203339786U|2013-05-15|2013-12-11|北京中交通信科技有限公司|Portable emergency power box|
    CN106329688B|2014-01-28|2019-09-27|Oppo广东移动通信有限公司|Electronic equipment and its power supply adaptor|
    CN203747392U|2014-01-28|2014-07-30|广东欧珀移动通信有限公司|Electronic device and power supply adapter thereof|
    CN103762691B|2014-01-28|2015-12-23|广东欧珀移动通信有限公司|Battery charger and cell charge protection control method|JP6275856B2|2014-01-28|2018-02-07|グアンドン オッポ モバイル テレコミュニケーションズ コーポレーション，リミテッドＧｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ．|Terminal, power adapter and charging error processing method|
    CN106329688B|2014-01-28|2019-09-27|Oppo广东移动通信有限公司|Electronic equipment and its power supply adaptor|
    CN105334420B|2014-06-27|2020-02-04|联想有限公司|Information processing method and electronic equipment|
    CA2951176C|2014-11-11|2018-09-25|Guangdong Oppo Mobile Telecommunications Corp., Ltd.|Power adapter and terminal|
    CN104548354B|2015-01-14|2017-07-21|深圳市科曼医疗设备有限公司|The defibrillation charging overcurrent protective device and defibrillation monitor of defibrillation monitor|
    CN105991295B|2015-02-12|2020-03-13|中兴通讯股份有限公司|U interface remote supply feed circuit|
    HUE043256T2|2015-05-13|2019-08-28|Guangdong Oppo Mobile Telecommunications Corp Ltd|Quick charging method, power adapter and mobile terminal|
    CN104979881B|2015-07-30|2017-03-01|安徽正民车业有限公司|A kind of safety power supply circuit|
    WO2017088138A1|2015-11-26|2017-06-01|广东欧珀移动通信有限公司|Charging device for mobile terminal|
    JP6393001B2|2016-02-05|2018-09-19|クワントン オーピーピーオー モバイル テレコミュニケーションズ コーポレイション リミテッド|Terminal charging system, charging method and power adapter, switching power supply|
    CN106537724B|2016-02-05|2020-01-10|Oppo广东移动通信有限公司|Charging method, adapter and mobile terminal|
    CN106663957B|2016-03-01|2019-08-23|Oppo广东移动通信有限公司|Charging method, adapter, mobile terminal and charging system|
    CN105846401A|2016-04-25|2016-08-10|浪潮集团有限公司|Power management device and method, and electronic device|
    CN106253385A|2016-08-12|2016-12-21|安徽中杰信息科技有限公司|A kind of battery charger|
    CN108370165B|2016-09-21|2021-09-28|北京小米移动软件有限公司|Power adapter, mobile terminal and charging system|
    CN112803539A|2016-11-15|2021-05-14|华为技术有限公司|Charging method and related equipment|
    CN106771503A|2017-02-15|2017-05-31|广东小天才科技有限公司|Voltage x current supervising device and method|
    CN109286179A|2017-07-20|2019-01-29|光宝科技股份有限公司|Low phase surge protecter|
    CN107508346A|2017-08-28|2017-12-22|惠州Tcl移动通信有限公司|Mobile terminal and charge control method and storage medium|
    TWI644495B|2017-11-24|2018-12-11|和碩聯合科技股份有限公司|Input protection circuit|
    CN108123624B|2017-12-10|2020-05-22|北京工业大学|High-precision laser remote sensing numerical control power circuit|
    CN108462228A|2018-03-08|2018-08-28|华勤通讯技术有限公司|A kind of protection circuit, guard method and terminal|
    JP6915148B2|2018-09-30|2021-08-04|オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ．|Charging device test system and method|
    JP2021532485A|2018-09-30|2021-11-25|オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd.|Adapter function test method and equipment, equipment, storage medium|
    CN111129626B|2018-10-30|2021-10-22|宏碁股份有限公司|Low-voltage threshold adjusting method|
    CN109683007A|2018-11-29|2019-04-26|Oppo（重庆）智能科技有限公司|Testing current mold, system and method|
    CN110392180A|2019-06-05|2019-10-29|联想图像（天津）科技有限公司|Signal circuit|
    CN110474408B|2019-08-29|2021-01-15|厦门理工学院|Power supply circuit|
    CN112628131B|2020-12-19|2021-11-16|嘉兴泛达思节能技术有限公司|Booster pump variable frequency drive controller|
    法律状态:
    2020-02-18| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-11-23| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2022-01-04| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    CN201410043139.4A|CN103795040B|2014-01-28|2014-01-28|Electronic equipment and power supply adaptor thereof|
    CN201410043139.4|2014-01-28|
    PCT/CN2014/077287|WO2015113342A1|2014-01-28|2014-05-12|Electronic device and power adapter therefor|
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