• 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:
    The invention relates to electrical engineering. The purpose of the invention is to increase the convenience of operation. The device contains a harmonic filter 1, a mains voltage rectifier 2, an inverter 3, a voltage resonance circuit 4, a reclosing unit consisting of a capacitor 12 and a resistor 13, and a tripping unit on the thyristor 8 controlled by a resonant overvoltage meter inductive elements. When the lamp fails, the thyristor 8 is turned on, turning off the inverter 3. After installing the new lamp, the capacitor 12 is recharged and the thyristor 8 is turned off, allowing restarting of the inverter 3. 1 Cpf, 3 sg.
    公开号:SU1574187A3
    申请号:SU874202125
    申请日:1987-03-13
    公开日:1990-06-23
    发明作者:Цухтригель Антон
    申请人:Патент-Тройханд-Гезельшафт Фюр Электрише Глюлампен Мбх (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to electrical engineering and can be used when operating in the high frequency mode of one or several low pressure gas discharge lamps connected in parallel to each other.
    The aim of the invention is to improve the usability.
    Figure 1 shows the block diagram of the device; Fig. 2 is an electrical circuit of the device for operating one lamp; FIG. 3 is an electrical circuit of the device for parallel connection of two low-pressure discharge lamps.
    The block diagram in FIG. 1 shows a schematic diagram of a device for a single low-pressure discharge lamp according to the invention. The device contains a high harmonic filter 1, a line voltage rectifier 2, and a push-pull inverter} with series-connected and switching transistors. A low pressure gas discharge lamp 5 is switched on between the branch of the switching transistors and the negative pole of the mains voltage rectifier 4 through the voltage resonance circuit 4. The disconnecting unit consists of a diode 6 connected in series, an eistor 7 and a thyristor 8 with a control unit 9, and this unit connects the base of the switching transistor connected to the positive terminal of the line voltage rectifier 2 with its negative terminal. In addition, the branch 10 between the diode 6 and the resistor 7 is connected via a resistor 1) to the positive output of the rectifier 2 of the mains voltage “
    The reclosing unit consists of a capacitor 12 and a resistor 13. The capacitor 12 connects the branch 10 between the diode 6 and the resistor 7 to the first output for connecting the second electrode of the 5E lamp, the other output of which is connected to the negative voltage output of the rectifier 2. The resistor 13 connects the positive output of the rectifier 2 of the mains voltage with the branch 14 "Additionally, an additional resistor 15 may be provided between the branch 10 and the capacitor 12,
    Fig. 2 shows the electrical circuit of the device for a low-pressure discharge lamp. Directly to the input of the network, the choke 16 with a ferromagnetic core is connected in series as a high harmonic filter, and a capacitor 17 is connected in parallel to the rectifier input. A rectifier of the mains voltage with diodes 18-21 follows the harmonic filter current smoothing capacitor 22, An automatically controlled push-pull inverter consists of two transistors 23 and 24 with reverse current diodes 25 and 26, pre-connected resistors 27-30, a control transformer, a starting node ska with resistors 31 and 32, starting capacitor 33 and the disc 34 and the condenser 35 for adjusting the slope of the pulse front. A control transformer consists of a primary winding 36, as well as two secondary windings 37 and 38, a lamp 5 is connected by a terminal 39 for connecting an electrode 40 to a tap 41 between two transistors 23 and 24 and a terminal 42 for connecting another electrode 43 with a negative output of a rectifier network voltage In addition, a resonant voltage circuit is provided for the resonant inductive element 44, the resonant capacitor 45 and the coupling capacitor 46, with the resonant inductive element 44 and the coupling capacitor 46 connected between the primary winding 36 of the control transformer and the output 39, and the resonant capacitor 45 included between pins 47 and
    48 for connecting the electrodes 40 and 43,
    The device has a disconnecting unit consisting of a diode 6, resistors 7 and 11, and a thyristor 8 with a control node. This unit connects the base of the transistor 23 of a push-pull inverter with a negative output of the line voltage rectifier. In addition, the branch 10 between the diode 6 and the resistor 7 is connected via a resistor I1 with a positive output of the line voltage rectifier. The thyristor control unit 8 consists of an overvoltage meter (secondary winding
    49 resonant inductive element5 15
    44), a disk 50, capacitors 51-53, resistors 54-56, and a rectifying diode 57.
    The control unit is powered by the voltage from the secondary winding 49, which is fed through diode 57 to an HC circuit consisting of a capacitor 52 and a charging resistor 55 "This RC circuit determines the time constant of the disconnecting unit. Resistor 56 is discharged, and capacitor 53 parallel to it is smoothing. A capacitor 51 protects the thyristor 8 from interfering with interference. Resistor 54 prevents the thyristor from operating at high leakage currents of the disk (threshold element) 50, for example, at high ambient temperatures. FIG. 3 is an electrical circuit diagram of a device for parallel connection of two high-pressure, low-pressure discharge lamps. Additionally, a second lamp 58 with electrodes 59 and 60 is connected in parallel with the first gas discharge lamp 5. A second resonant voltage circuit is provided for this lamp from a resonant inductive element 61 (droselsel), a coupling capacitor 62, and a resonant capacitor 63, with a series connection a circuit from the coupling capacitor 62 and the resonant inductive element 61 between the terminal 64 for connecting the electrode 59 and the primary control winding 36, and the resonant capacitor 63 is connected between the terminals 65 and 66 for connecting an electric The electrodes 59 and 60. The output 67 for connecting the electrode 60 is directly connected to the negative terminal of the line voltage rectifier. The thyristor control unit 8 has a secondary winding 68 of a resonant inductive element 61 connected in series with a rectifying diode 69, this circuit is parallel to the first secondary winding 49 with a diode 57,
    For the second low pressure discharge lamp 58, an additional capacitor 70 and a resistor 71 are provided.
    The device works as follows
    When the input voltage is applied, the capacitor 33 is charged through the resistor 31. The resistor 31 and the capacitor 33 together with the disk 34
    . "J 0 5 0 О 5
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    five
    five
    87 6
    are the start-up unit (sawtooth oscillator) of the inverter, the frequency of which largely depends on the input voltage. When the voltage on the capacitor 33 reaches the breakdown voltage of the disk 34, it opens and gives a short pulse to the base of the transistor 24. Under the action of these pulses current flows through the transistor 24, the primary winding 36, the resonant inductive element (choke) 44, capacitors 46 and 45 and incandescent electrodes 40 and 43 of the lamp 5. Aperiodically falling voltages are induced on the secondary windings 37 and 38 of the transformer. As the input voltage rises, the second and third positive half-waves of the gating voltage reach the threshold value and, due to feedback, the inverter is instantly triggered through the secondary windings 37 and 38. The oscillatory circuit consists mainly of a capacitor 45 and a throttle 44.
    After the natural oscillations are established, the start-up node stops working due to the diode 72, since the capacitor 33 is discharged through the diode 72 and the transistor 24, and thus a voltage cannot appear on the capacitor 33 that could open the threshold element - disk 34,
    If a low-pressure gas discharge lamp 5 or 58 fails, for example, due to air penetration or the electrode material being consumed on the inductor 44, or 61, due to free resonance, an increase in voltage occurs, leading to an increase in the voltage of their secondary windings 49 and 68. As a result, after a time determined by the RC circuit on the threshold element 50, the voltage rises to the voltage of the breakdown and the thyristor 8 is directly turned on. Thanks to this process, the base of the transistor 23 shunts and oscillates and terminated through a resistor 11, the thyristor 8 is held in the ON state necessary constant current.
    After removing a defective low-pressure gas-emitting lamp 5 or 58 within a few seconds, the capacitor 12 or 70 through the resistance 13 or 71 is charged to the voltage of the rectifier. After installation but71574187
    A low-pressure gas discharge lamp The positively charged plate of a capacitor 12 or 70 is connected through the electrode 43 or 60 with a negative output of the rectifier. As a result, capacitor 12 or 70 is recharged, and the thyristor 8, depending on the constant time due to the capacitor -n 12 or 70 s of resistor 7, goes into a locked state within a period less than 0.1 ms. By introducing a resistor 15, the recharging time can be increased and thus also, the reliability for switching the thyristor 8 to a locked state is increased more. When a new gas-discharge lamp or low-pressure lamps with serviceable electrode ones are installed through an electrophore type, the corresponding capacitor is connected with a positively charged plate to the cathode of the thyristor 8 connected to the negative side of the rectifier of the mains voltage, the recharge of the capacitor and the holding current is removed from the thyristor 8. The thyristor 8 goes into a locked state and, thus, makes possible a new start of the inverter.
    do a pair of packagings on a c
    权利要求:
    Claims (2)
    [1]
    1. A device for operating one or several low-pressure gas-discharge lamps in a high-frequency mode, comprising a line voltage rectifier, to the output of which a two-stroke inverter is connected, made in the form of two series-connected transistors of the control unit, the starting node, connected to the output of the rectifier of the mains voltage, and the output to the base of the transistor, connected to the negative output of the rectifier of the mains voltage, and the coupling capacitor, between two transistors are provided with a tap, two connecting lines for each lamp, the first of which, with resonant inductive elements, are connected between the indicated tap and the second terminals for connecting the first electrode of the corresponding lamp, between
     , - 5 Q
    five
    with
    The first pins for connecting each lamp electrode are connected to resonant capacitors, disconnecting a unit made in the form of a diode, two resistors and a thyristor with a control unit whose cathode is connected to the negative side of the power line rectifier, and the anode is connected through the first resistor to the cathode of the diode which, through the second resistor, is connected to the positive output of the mains voltage rectifier, the anode of the diode of the disconnecting unit is connected to the base of the transistor connected to the positive output of the rectifier of the network voltage, and the thyristor control unit of the disconnecting unit is made in the form of overvoltage meters on resonant inductive elements and rectifying diodes according to the number of lamps, threshold element and RC circuit connected via rectifying diodes to the outputs of the corresponding specified overvoltage meter, to a capacitor The RC circuit through the threshold element is connected to a thyristor control transition, characterized in that, in order to increase the convenience of operation, a reclosing unit made in the form of one a capacitor and one resistor for each lamp, and additional coupling capacitors, the total number of which is equal to the number of lamps, each capacitor being connected to the corresponding first connecting line in series with the resonant inductive element, the second connecting lines are connected between the negative output of the rectifier the mains voltage and the second terminals for connecting the second electrodes of the lamps, the first terminals for connecting which are connected with the positive output of the rectifier of the network voltage Erez respective resistor and to the cathode of isolation diode unit - via corresponding capacitor assembly reclosing
    [2]
    2. The device according to claim 1, of which is an additional resistor, through which the combined capacitor terminals of the reclosing unit are connected to the cathode of the disconnecting unit diode.
    类似技术:
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    US4749914A|1988-06-07|Circuit system for igniting and operating a high-pressure discharge lamp, particularly a sodium vapor lamp
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    CA1207014A|1986-07-02|Arc lamp power supply
    US4500812A|1985-02-19|Electronic ballast circuit
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    US4961029A|1990-10-02|Discharge lamp lighting device
    US5818675A|1998-10-06|Protection device for electronic circuits
    EP0830808B1|2002-07-24|Circuit arrangement
    同族专利:
    公开号 | 公开日
    EP0239793B1|1991-07-03|
    US4710682A|1987-12-01|
    EP0239793A1|1987-10-07|
    FI870901A|1987-09-15|
    ZA871394B|1987-09-30|
    FI870901A0|1987-03-02|
    AT65009T|1991-07-15|
    DE3608615A1|1987-09-17|
    DE3771099D1|1991-08-08|
    引用文献:
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    US4945278A|1988-09-20|1990-07-31|Loong-Tun Chang|Fluorescent tube power supply|
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    US5089753A|1990-07-09|1992-02-18|North American Philips Corporation|Arrangement for predicting failure in fluorescent lamp systems|
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    US5130611A|1991-01-16|1992-07-14|Intent Patents A.G.|Universal electronic ballast system|
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    AT143208T|1992-03-02|1996-10-15|Siemens Ag|CIRCUIT ARRANGEMENT FOR OPERATING SEVERAL FLUORESCENT LAMPS WITH A BALLAST|
    US5436529A|1993-02-01|1995-07-25|Bobel; Andrzej A.|Control and protection circuit for electronic ballast|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19863608615|DE3608615A1|1986-03-14|1986-03-14|CIRCUIT ARRANGEMENT FOR OPERATING LOW-PRESSURE DISCHARGE LAMPS|
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