• 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:
    A circuit for monitoring the supply of electric current of a consumer comprises a voltage regulating device (14) and a device for monitoring (16) a time variable voltage (UB) in order to connect the user only during the constant voltage phase. The monitoring device (16) is comprised of a comparator (17) of which one input is supplied by a voltage (URef) which is proportional to the output voltage (UA) of the regulating device and the other input is supplied by a differential voltage (UD) exceeding a threshold value and taken at the input of the voltage regulating device. The output of the comparator provides an ON and OFF signal accessible to the consumer.
    公开号:SU1602407A3
    申请号:SU864027971
    申请日:1986-08-15
    公开日:1990-10-23
    发明作者:Фаузер Эдвин；Лист Ханс
    申请人:Роберт Бош Гмбх (Фирма)；
    IPC主号:
    专利说明:

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     15
    73
     CM
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    The invention relates to devices for controlling power supply to consumers of electricity in particular of a microcomputer on a mobile storage medium with inductive energy transfer.
    The purpose of the invention is to increase efficiency and reduce voltage fluctuations.
    The drawing shows a device for controlling the power supply of an energy consumer.
    The device contains a transformer coil of a transformer 1 located on a data carrier that passes by a transformer coil installed at a fixed station and connected to a current source. The transformer coil 1, connected in parallel to the series circuit from diode 2 and capacitor 3, provides for an inductive connection with the transformer coil of the fixed station for a period of time, the voltage variable Ug that is output to the output of the capacitor 3 and through the resistor 4 to regulator 5 voltage. The voltage regulator 5 is implemented in the form of an integrated circuit US78T05 and serves to obtain an approximately constant, for a predetermined period of time, the supply voltage U C + Z.B for the microcomputer and other switching circuits, removing energy from the second capacitor 6 connected in parallel to regulator output). Since the voltage regulator 5 can regulate such a constant supply voltage and only when a certain minimum voltage is applied to its input, during each pass past the fixed station, the operating voltage Ug of the circuit device increases from zero and again lowers to zero. In addition, a voltage control device 7 is provided, which includes a power consumer, in this case in the form of a microcomputer, only during the time period when the supply voltage Uy is constantly 5 V. This time interval is determined by the moment of voltage rise. at the output of the regulator to a constant voltage supply Uy and a moment of decrease in the voltage Id at the output of the regulator below the constant voltage supply 5V.
    0
    five
    0
    five
    0
    five
    0
    five
    A voltage control device 7 has a comparator 8, to one of the inputs of which a reference voltage Upgf is applied, proportional to the voltage and, at the controller output, and to the other input - differential voltage Ujj, taken from the controller input and exceeding the threshold value .
    To obtain a reference voltage, a voltage divider 9 is connected in parallel to the output of the controller ID; the voltage puller 10 is connected to the non-inverting input of the comparator 8. To drain the differential voltage Uj, a series circuit of Zener diode 11 and a resistor 12 is connected in parallel .. The connection point of the outputs of the Zener diode 11 and the resistor 12 is connected to the inverted input of the comparator 8. The voltage drop occurring on the resistor 12 is a measure for the differential voltage DC. The voltage Uj, -c of the tablitron (7.5 V) is chosen greater than the supply voltage Uy (5 V), but not too large: so that it is guaranteed that after charging the capacitor 6, i.e. when the current supplied to the voltage regulator 5 becomes greater than the voltage regulator removed from the output, the voltage at the input of the voltage regulator 5 increases to the zener voltage, causing stabilizer 11 to flow current and on the resistor 12 generates a differential. voltage Up.
    The VO code KOffflapaTOpa 8 is connected through a resistor 13 to the first input of the NON-14 valve, to the other input of which a voltage U 5 is applied. From the output 15, the NON-14 valve can. The consumer turn on signal is a logical unit and the consumer turn off signal is a logical zero. The output of comparator 8 is still connected through a coupling resistor 16 to a non-invertible input of comparator 8. Through this feedback, a hysteresis loop of the switching element is created, thereby suppressing the effect of load fluctuations.
    The device works as follows.
    If the storage medium passes by the stationary station and the transformer coil 1 is temporarily inductively connected to the current supplied
    16024076
    the coil of the transformer on the stationary U. on the resistor 12 decreases below the station, then the reference voltage U and the output
    the operating voltage V at the output of the comparator 8 again becomes positive. Thereby, the output 15 of the ventilators ЕЕ-И 14 on the logic controller 3 overturns. Since the zener diode 11 is still locked, the existing
    at Zener diode 11, the voltage U. The real zero and the consumer again turn off the voltage 5 -throttle, and then until
    It transmits the voltage U to the output of the regulator, so that the output voltage Od of the voltage regulator 5 increases. The differential voltage, and decreasing on resistor 12, is zero, while the reference voltage is positive, then the output of comparator 8 becomes positive. The output 15 of the non-AND gate 14 takes on the value of logical zero. Before
    The closest switching on of the operating direction — Q or IV; the output 15 of the NAND gate 14 will not again be tilted by a logical unit.
    权利要求:
    Claims (6)
    [1]
    Invention Formula
    151- A device for controlling the power supply of an energy consumer, for example, a microcomputer on a movable information carrier with inductive energy transfer, containing an energy consumer supply connected, for example, a microcomputer on a movable information carrier with inductive energy transfer, containing a connection of pores, while here the turn-off signal is 20 to change In time, it has a logical zero value, the consumer (microcomputer) remains off.
    With an increase in the output voltage U of the regulator, the capacitor 6 is charged, due to which the current flowing through the voltage regulator 5 becomes greater than the later operating current. When the output voltage PD of the regulator reaches the value of the DC supply voltage Uy 5 V, then no additional charge is supplied to the capacitor 6. No additional charge is supplied and the voltage regulator 5 immediately takes the current, due to which the voltage increases abruptly. Zener diode 11 becomes conductive and takes on excess current. Due to this, the differential voltage Uj, decreasing on resistor 12, quickly increases. As the differential voltage Uj, exceeds the constant reference voltage, the output of the comparator 8 takes a logical zero, and the output 15 of the AND-14 valve tilts to a logical one. The current consumer (microcomputer) is turned on and its active state is maintained as long as the output 15 of the non-AND gate 14 preserves the logical unit, i
    If the inductive coupling of the transformer coil 1 with the transformer coil of the fixed station is stopped, then the operating voltage Ug on the capacitor 3 decreases until its capacitor
    as the current in the Zener diode 12 flows to the well-3. Device on PP. 1 and 2 ,. about
    Liu At this point, there is still enough energy to maintain a supply voltage Uy of 5 V. For additional voltage, a voltage regulator to form a constant supply voltage for the consumer and a unit for controlling the voltage to turn on 25 and turn off the consumer after increasing the output the voltage of the regulator to the voltage of the regulator is lower than the supply voltage, while the voltage control unit is made in the form of a comparator, the output of which is connected to the executive unit, characterized in that and reducing voltage fluctuations; one input is connected to the source of the reference voltage, the voltage of which is proportional to the output voltage of the regulator, and the other input of the comparator is connected to the node connected to the input of the voltage regulator and forming a differential voltage exceeding the threshold value, the threshold value being selected so that the differential voltage is more or less than the reference voltage in the case when the regulator voltage reaches the supply voltage, i.e. did not become lower.
    (-
    [2]
    2. The device according to claim 1, 50, and 50 is that the capacitor is connected in parallel to the output of the controller, and the source of the reference voltage is designed as a voltage divider connected in parallel to
    40
    In this case, parallel to the input of the regulator, a series of diodes is connected in series. A negligible switching on of the operating voltage Q and the output 15 of the NOT-14 valve will not again be tilted by a logical unit.
    Invention Formula
    151- A device for controlling the power supply of an energy consumer, for example, a microcomputer on a movable storage medium with inductive energy transfer, containing a slave to the sensor that is connected to a time-varying slave
    to which voltage the voltage regulator to form a constant voltage power supply for the consumer and the unit to control the voltage to turn on 25 and turn off the consumer after increasing the output voltage of the regulator to the voltage of the regulator below the supply voltage The device is made in the form of a com- parator, the output of which is connected to the executive body, characterized in that, in order to increase efficiency and reduce voltage fluctuations, one input is connected to the source of the reference voltage voltage, which voltage is proportional to the output voltage of the regulator, and the other input of the comparator is connected to the node that is connected at the input of the voltage regulator and forms differential voltage, which exceeds the threshold value, and the threshold value is chosen so that The voltage was more or less than the reference voltage in the case when the regulator voltage reached the supply voltage, i.e. did not become lower.
    (-
    2. The device according to claim 1, 1 and 2 is that the capacitor is connected in parallel to the output of the regulator, and the source of the reference voltage is designed as a voltage divider connected in parallel to the end
    0
    [3]
    3. The device according to PP. 1 and 2 ,. about
    In this case, parallel to the input of the regulator, a series of Zenep diode and a resistor is connected in series, while the Zener diode i is connected to the input of the regulator, and the difference voltage is removed from the resistor as a voltage drop.
    [4]
    4. Popp device, 2 and 3, characterized in that the voltage divider of the voltage source of the reference voltage source is connected to a non-inverted input, and the point | Q of the Zener diode output and the resistor are connected to the inverter input of the comparator.
    [5]
    5. The device in one of the paragraphs. 14,. characterized by the fact that 15
    The comparator output is connected to one of the inputs of the NOT-AND valve, the other of which is loaded with a supply voltage, and at its output a consumer switch-on signal is formed as a signal of a logical unit or a switch-on signal as a signal of a logical loop
    [6]
    6. Device according to one of paragraphs. 3-5, characterized in that the voltage of the zener diode is not chosen more than the supply voltage,
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    同族专利:
    公开号 | 公开日
    ES550029A0|1986-12-01|
    US4716372A|1987-12-29|
    EP0207086A1|1987-01-07|
    DE3446129C2|1992-07-23|
    DE3572549D1|1989-09-28|
    JPH0789301B2|1995-09-27|
    DE3446129A1|1986-06-26|
    EP0207086B1|1989-08-23|
    JPS62501177A|1987-05-07|
    WO1986003860A1|1986-07-03|
    ES8702006A1|1986-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS53111455A|1977-03-10|1978-09-29|Casio Comput Co Ltd|Source voltage detector|
    US4224539A|1978-09-05|1980-09-23|Motorola, Inc.|FET Voltage level detecting circuit|
    CA1202091A|1981-10-14|1986-03-18|Sinichi Masuda|Reset pulse generator|
    DE3130067A1|1981-07-30|1983-02-17|Vdo Adolf Schindling Ag, 6000 Frankfurt|Circuit arrangement for monitoring the supply voltage|
    US4428020A|1981-10-14|1984-01-24|Scm Corporation|Power supply sensing circuitry|
    DE3337280A1|1983-10-13|1985-04-25|Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn|Data protection device|
    US4594517A|1984-04-30|1986-06-10|Rca Corporation|Power down sensor|DE3623192A1|1986-07-10|1988-01-14|Thomson Brandt Gmbh|CIRCUIT ARRANGEMENT FOR THE POWER SUPPLY OF ELECTRONIC DEVICES|
    US4958086A|1989-05-08|1990-09-18|Motorola, Inc.|Low di/dt output buffer with improved speed|
    DE4034081C2|1990-10-26|2000-09-28|Bosch Gmbh Robert|Current control circuit for an inductive consumer|
    US5369309A|1991-10-30|1994-11-29|Harris Corporation|Analog-to-digital converter and method of fabrication|
    US5994755A|1991-10-30|1999-11-30|Intersil Corporation|Analog-to-digital converter and method of fabrication|
    JP2761687B2|1991-12-19|1998-06-04|三菱電機株式会社|Voltage level detection circuit|
    AT412601B|1996-10-29|2005-04-25|Bernhard Dipl Ing Rzepa|CIRCUIT ARRANGEMENT FOR THE HYSTERESIS-ASSOCIATED THRESHOLD DETECTION OF AN INPUT VOLTAGE|
    WO2002075472A2|2001-03-20|2002-09-26|Pepperl & Fuchs Gmbh|Method and device for inputting data into an electronic data processing device|
    EP1404078A1|2002-09-25|2004-03-31|Motorola, Inc.|Receiver for a switched signal on a communication line|
    JP6156014B2|2013-09-24|2017-07-05|株式会社オートネットワーク技術研究所|Low voltage judgment circuit|
    JP6354330B2|2014-05-23|2018-07-11|株式会社ノーリツ|Control device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3446129A|DE3446129C2|1984-12-18|1984-12-18|Circuit arrangement for monitoring the power supply of an electrical consumer|
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