CN102938613B - Positive polarity adjustable high-voltage power circuit consisting of TL5001A - Google Patents
Positive polarity adjustable high-voltage power circuit consisting of TL5001A Download PDFInfo
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Abstract
The invention relates to a positive polarity adjustable high-voltage power circuit consisting of TL5001A. The power circuit comprises a high-voltage output rectifying filter circuit and an over-current protection circuit. The power circuit is characterized by also comprising a drive control circuit, a high voltage feedback control circuit and an output enabling control circuit, the high-voltage output rectifying filter circuit is connected to the drive control circuit through the high voltage feedback control circuit and the over-current protection circuit respectively, the drive control circuit is connected to the high-voltage output rectifying filter circuit, and the output enabling control circuit is connected to the high voltage feedback control circuit. The power circuit has the advantages of being simple and novel in structure and easy to minimize. Complete pulse width modulation (PWM) power control is achieved, a main control chip TL5001A is incorporated into a PWM control circuit required by all functions of a monolithic chip, the circuit has functions such as reference output, enabling control, output adjustment, output monitoring and over-current short circuit protection, the input voltage range is wide, and the performance is stable and reliable for the long-term working.
Description
Technical field
The present invention relates to a kind of a kind of positive polarity adjustable high voltage power supply circuit being formed by TL5001A being applied in the aspect instrument and equipments such as spectrum analysis, environmental monitoring, biotechnology and medical treatment.
Background technology
Low-power high-voltage power supply product on market is of a great variety, of many uses, but that many power supply products exist on circuit form is stereotyped, without there being new meaning, function is few, product structure is also similar.Development along with electronics technology, client constantly increases the demand of low-power high-voltage power supply, also to higher requirements of proposition such as its technical performances, volume is extra small, lightweight, function is many, the development trend that becomes this field high voltage source product stable and reliable for performance, easy to use simultaneously.
Summary of the invention
In view of the deficiency of prior art existence, and the conditions of demand of existing market, the invention provides a kind of pulse width modulation controlled, multi-functional, stable and reliable for performance, a kind of positive polarity adjustable high voltage power supply circuit being formed by TL5001A easy to use.
The present invention for achieving the above object, the technical scheme of taking is: the positive polarity adjustable high voltage power supply circuit consisting of TL5001A, it comprises High voltage output current rectifying and wave filtering circuit, current foldback circuit, it is characterized in that: also comprise Drive and Control Circuit, high pressure feedback control circuit, output enable control circuit, described High voltage output current rectifying and wave filtering circuit is respectively by high pressure feedback control circuit, current foldback circuit is connected with Drive and Control Circuit, described Drive and Control Circuit is connected with High voltage output current rectifying and wave filtering circuit, described output enable control circuit is connected with high pressure feedback control circuit,
In described Drive and Control Circuit, voltage output end 1 pin of control chip U1 is by one end of resistance R 2 difference connecting resistance R1, the grid of triode Q1, capacitor C 3 and capacitor C 4 parallel connections, the negative pole of capacitor C 3 meets input ground GND, feeder ear 2 pin of control chip U1 connect respectively one end of inductance L 1, the positive pole of capacitor C 3, the negative pole of diode D5, the source electrode of triode Q1, the other end of resistance R 1, the drain electrode of triode Q1 connects respectively one end of capacitor C 2, 2 pin of transformer TRF primary coil LP1, the positive pole of diode D5 connects respectively one end of capacitor C 1, 3 pin of transformer TRF primary coil LP2, 1 pin of transformer TRF primary coil LP1 respectively with 4 pin of transformer TRF primary coil LP2, the other end of capacitor C 1 and C2 is connected and meets input ground GND, input supply power voltage+Vin connects respectively one end of capacitor C 5, the other end of inductance L 1, another termination input ground GND of capacitor C 5, the compensation of control chip U1 holds 3 pin to connect one end of capacitor C 7, the other end of capacitor C 7 connects respectively one end of capacitor C 8 by resistance R 4, feedback end 4 pin of control chip U1, another termination input ground GND of capacitor C 8, short-circuit protection end 5 pin of control chip U1 connect the positive pole of capacitor C 6, the negative pole of capacitor C 6 meets input ground GND, timing resistor end 7 pin of control chip U1 meet input ground GND by resistance R 3, resistance R 5 is in parallel with capacitor C 9, Dead Time control end 6 pin of control chip U1 connect respectively one end of capacitor C 9, the collector electrode of triode Q2 in current foldback circuit, the other end of capacitor C 9 is connected with earth terminal 8 pin of control chip U1 and meets input ground GND,
In described high pressure feedback control circuit, after being connected with its output 1 pin, inverting input 2 pin of control chip U3A connect in-phase input end 5 pin of control chip U2B by resistance R 9, capacitor C 18 is in parallel with resistance R 8, the in-phase input end 3 pin difference connecting resistance R8 of control chip U3A and one end of resistance R 7, one end of capacitor C 17, another termination input ground GND of resistance R 8, the other end of resistance R 7 meets the high-voltage output end+H.V in High voltage output current rectifying and wave filtering circuit by resistance R 6, the positive pole of diode D3 in another termination High voltage output current rectifying and wave filtering circuit of capacitor C 17, 4 pin of control chip U3A meet input ground GND, 8 pin of control chip U3A meet input supply power voltage+Vin, the inverting input 6 pin difference connecting resistance R10 of control chip U2B and one end of resistance R 11, another termination input ground GND of resistance R 10, output 7 pin of control chip U2B connect respectively in-phase input end 3 pin of control chip U2A, one end of resistance R 14, the other end of resistance R 11, another termination output monitoring side Vd of resistance R 14, the output 1 pin difference connecting resistance R12 of control chip U2A and one end of capacitor C 19, feedback end 4 pin of control chip U1 in another termination Drive and Control Circuit of resistance R 12, the other end of capacitor C 19 connects respectively inverting input 2 pin of control chip U2A by resistance R 13, one end of resistance R 15, the other end of resistance R 15 connects respectively one end of capacitor C 20 and resistance R 16, another termination output of resistance R 16 regulates control end Vadj, another termination input ground GND of capacitor C 20, 4 pin of control chip U2A meet input ground GND, 8 pin of control chip U2A meet input supply power voltage+Vin,
In described output enable control circuit, the in-phase input end 5 pin difference connecting resistance R18 of control chip U3B and one end of resistance R 19 and capacitor C 21, another termination input supply power voltage end+Vin of capacitor C 21, control end 1 pin of adjustable reference source U4 is connected with negative electrode 3 pin, and connect respectively the positive pole of capacitor C 22, one end of resistance R 17, the other end of resistance R 18, simultaneously as reference voltage terminal Vref, the negative pole of capacitor C 22 is connected with anode 2 pin of adjustable reference source U4 and the other end of resistance R 19 and meets input ground GND, another termination input supply power voltage end+Vin of resistance R 17, one end of the inverting input 6 pin connecting resistance R20 of control chip U3B, one end of the other end connecting resistance R21 of resistance R 20 as output enable end EN, another termination reference voltage terminal Vref of resistance R 21, output 7 pin of control chip U3B connect the base stage of triode Q3 by resistance R 22, the emitter of triode Q3 meets input ground GND, the collector electrode of triode Q3 connects the ungrounded end of capacitor C 20 in high pressure feedback control circuit.
The invention has the beneficial effects as follows: circuit structure is simple, novel, is easy to miniaturization; Pwm power is controlled completely, and main control chip TL5001A has included the required pwm control circuit of all functions of monolithic chip in; Circuit has benchmark output, enables to control, export the functions such as adjusting, output monitoring, overcurrent short-circuit protection; Wide input voltage range, long-term work is stable and reliable for performance.
Accompanying drawing explanation
Fig. 1 is that circuit of the present invention connects block diagram;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1, 2; the positive polarity adjustable high voltage power supply circuit being formed by TL5001A; it comprises High voltage output current rectifying and wave filtering circuit, current foldback circuit; also comprise Drive and Control Circuit, high pressure feedback control circuit, output enable control circuit; High voltage output current rectifying and wave filtering circuit is connected with Drive and Control Circuit by high pressure feedback control circuit, current foldback circuit respectively; Drive and Control Circuit is connected with High voltage output current rectifying and wave filtering circuit, and output enable control circuit is connected with high pressure feedback control circuit.
In above-mentioned Drive and Control Circuit, voltage output end 1 pin of control chip U1 is by one end of resistance R 2 difference connecting resistance R1, the grid of triode Q1, capacitor C 3 and capacitor C 4 parallel connections, the negative pole of capacitor C 3 meets input ground GND, feeder ear 2 pin of control chip U1 connect respectively one end of inductance L 1, the positive pole of capacitor C 3, the negative pole of diode D5, the source electrode of triode Q1, the other end of resistance R 1, the drain electrode of triode Q1 connects respectively one end of capacitor C 2, 2 pin of transformer TRF primary coil LP1, the positive pole of diode D5 connects respectively one end of capacitor C 1, 3 pin of transformer TRF primary coil LP2, 1 pin of transformer TRF primary coil LP1 respectively with 4 pin of transformer TRF primary coil LP2, the other end of capacitor C 1 and C2 is connected and meets input ground GND, input supply power voltage+Vin connects respectively one end of capacitor C 5, the other end of inductance L 1, another termination input ground GND of capacitor C 5, the compensation of control chip U1 holds 3 pin to connect one end of capacitor C 7, the other end of capacitor C 7 connects respectively one end of capacitor C 8 by resistance R 4, feedback end 4 pin of control chip U1, another termination input ground GND of capacitor C 8, short-circuit protection end 5 pin of control chip U1 connect the positive pole of capacitor C 6, the negative pole of capacitor C 6 meets input ground GND, timing resistor end 7 pin of control chip U1 meet input ground GND by resistance R 3, resistance R 5 is in parallel with capacitor C 9, Dead Time control end 6 pin of control chip U1 connect respectively one end of capacitor C 9, the collector electrode of triode Q2 in current foldback circuit, the other end of capacitor C 9 is connected with earth terminal 8 pin of control chip U1 and meets input ground GND,
In above-mentioned high pressure feedback control circuit, after being connected with its output 1 pin, inverting input 2 pin of control chip U3A connect in-phase input end 5 pin of control chip U2B by resistance R 9, capacitor C 18 is in parallel with resistance R 8, the in-phase input end 3 pin difference connecting resistance R8 of control chip U3A and one end of resistance R 7, one end of capacitor C 17, another termination input ground GND of resistance R 8, the other end of resistance R 7 meets the high-voltage output end+H.V in High voltage output current rectifying and wave filtering circuit by resistance R 6, the positive pole of diode D3 in another termination High voltage output current rectifying and wave filtering circuit of capacitor C 17, 4 pin of control chip U3A meet input ground GND, 8 pin of control chip U3A meet input supply power voltage+Vin, the inverting input 6 pin difference connecting resistance R10 of control chip U2B and one end of resistance R 11, another termination input ground GND of resistance R 10, output 7 pin of control chip U2B connect respectively in-phase input end 3 pin of control chip U2A, one end of resistance R 14, the other end of resistance R 11, another termination output monitoring side Vd of resistance R 14, the output 1 pin difference connecting resistance R12 of control chip U2A and one end of capacitor C 19, feedback end 4 pin of control chip U1 in another termination Drive and Control Circuit of resistance R 12, the other end of capacitor C 19 connects respectively inverting input 2 pin of control chip U2A by resistance R 13, one end of resistance R 15, the other end of resistance R 15 connects respectively one end of capacitor C 20 and resistance R 16, another termination output of resistance R 16 regulates control end Vadj, another termination input ground GND of capacitor C 20, 4 pin of control chip U2A meet input ground GND, 8 pin of control chip U2A meet input supply power voltage+Vin,
In above-mentioned output enable control circuit, the in-phase input end 5 pin difference connecting resistance R18 of control chip U3B and one end of resistance R 19 and capacitor C 21, another termination input supply power voltage end+Vin of capacitor C 21, control end 1 pin of adjustable reference source U4 is connected with negative electrode 3 pin, and connect respectively the positive pole of capacitor C 22, one end of resistance R 17, the other end of resistance R 18, simultaneously as reference voltage terminal Vref, the negative pole of capacitor C 22 is connected with anode 2 pin of adjustable reference source U4 and the other end of resistance R 19 and meets input ground GND, another termination input supply power voltage end+Vin of resistance R 17, one end of the inverting input 6 pin connecting resistance R20 of control chip U3B, one end of the other end connecting resistance R21 of resistance R 20 as output enable end EN, another termination reference voltage terminal Vref of resistance R 21, output 7 pin of control chip U3B connect the base stage of triode Q3 by resistance R 22, the emitter of triode Q3 meets input ground GND, the collector electrode of triode Q3 connects the ungrounded end of capacitor C 20 in high pressure feedback control circuit,
The model of pwm control circuit chip U1 is: TL5001A; The model of amplifier U2, U3 is: LM358.
Main control chip U1 is pulse width modulation power control circuit completely; though this chip pin is few; but function is complete; its inside has the circuit such as under-voltage locking, short-circuit protection; the wide input voltage range of 3.6V～40V, externally has the control ends such as Dead Time, operating frequency, short-circuit protection, frequency compensation, output feedback.The drive part of this power circuit adopts single-ended flyback, and is added with peak absorbance circuit, and integrated circuit is simple in structure, novel and be easy to miniaturization, externally has a plurality of function exits, is user-friendly to.
Operation principle
The kernel control chip U1 of power circuit adopts pulse-width modulation completely (PWM) integral control circuit chip.The feature of this chip is: the wide input voltage range of 3.6V～40V; The operating frequency range of 20KHz～500 KHz; Inside comprises an error amplifier, pressurizer, crystal oscillator, PWM comparator with Dead Time control input end, have under-voltage locking and short-circuit protection, open-collector output transistor; The Dead Time of super scope is controlled; The reference voltage of ± 3% error etc.
The pwm control signal of the 1 pin output of control chip U1, drives high frequency transformer TRF primary coil Lp1 by P ditch MOS switch triode Q1, and high-frequency pulse current produces induced potential at its two ends, and is coupled to secondary by transformer TRF.The high-frequency pulse voltage that secondary coil Ls1 two ends obtain, by exporting high pressure after the High voltage output current rectifying and wave filtering circuit being comprised of diode D1 ~ D4 and capacitor C 11 ~ C16 etc.
Output high pressure obtains the sampled signal of output voltage in resistance R 8, the follower forming by amplifier U3A, and after the homophase of amplifier U2B amplifies, the monitor signal voltage Vd as output voltage exports on the one hand; Deliver on the other hand the in-phase input end of error amplifier U2A, together with output regulation voltage Vadj, control the output of U2A, and then by feedback end 4 pin of U1, control the duty ratio of U1 output pulse, finally reach the object of regulated output voltage.
When output current is very little, the undertension at resistance R 23 two ends is so that triode Q2 conducting, and 6 pin of U1 (Dead Time control end) DTC end is relative high potential; Along with the increase of output current, the voltage at resistance R 23 two ends increases, thereby the collector potential of triode Q2 is declined, and the 6 pin DTC terminal potentials of U1 decline, and reach the object of restriction output current.
When Enable Pin EN is unsettled, amplifier U3B is output as electronegative potential, and triode Q3 cut-off, is normally exported without impact output regulation voltage Vadj; When Enable Pin EN ground connection, amplifier U3B is output as high potential, triode Q3 conducting, thus close output regulation voltage Vadj, now without High voltage output.
In addition, resistance R 3 determines the operating frequency of U1, and the effect of capacitor C 17 is the dynamic responses that improve this high-voltage power circuit.
Claims (1)
1. the positive polarity adjustable high voltage power supply circuit being formed by TL5001A, it comprises High voltage output current rectifying and wave filtering circuit, current foldback circuit, it is characterized in that: also comprise Drive and Control Circuit, high pressure feedback control circuit, output enable control circuit, described High voltage output current rectifying and wave filtering circuit is connected with Drive and Control Circuit by high pressure feedback control circuit, current foldback circuit respectively, described Drive and Control Circuit is connected with High voltage output current rectifying and wave filtering circuit, and described output enable control circuit is connected with high pressure feedback control circuit;
In described Drive and Control Circuit, voltage output end 1 pin of control chip U1 is by one end of resistance R 2 difference connecting resistance R1, the grid of triode Q1, capacitor C 3 and capacitor C 4 parallel connections, the negative pole of capacitor C 3 meets input ground GND, feeder ear 2 pin of control chip U1 connect respectively one end of inductance L 1, the positive pole of capacitor C 3, the negative pole of diode D5, the source electrode of triode Q1, the other end of resistance R 1, the drain electrode of triode Q1 connects respectively one end of capacitor C 2, 2 pin of transformer TRF primary coil LP1, the positive pole of diode D5 connects respectively one end of capacitor C 1, 3 pin of transformer TRF primary coil LP2, 1 pin of transformer TRF primary coil LP1 respectively with 4 pin of transformer TRF primary coil LP2, the other end of capacitor C 1 and C2 is connected and meets input ground GND, input supply power voltage+Vin connects respectively one end of capacitor C 5, the other end of inductance L 1, another termination input ground GND of capacitor C 5, the compensation of control chip U1 holds 3 pin to connect one end of capacitor C 7, the other end of capacitor C 7 connects respectively one end of capacitor C 8 by resistance R 4, feedback end 4 pin of control chip U1, another termination input ground GND of capacitor C 8, short-circuit protection end 5 pin of control chip U1 connect the positive pole of capacitor C 6, the negative pole of capacitor C 6 meets input ground GND, timing resistor end 7 pin of control chip U1 meet input ground GND by resistance R 3, resistance R 5 is in parallel with capacitor C 9, Dead Time control end 6 pin of control chip U1 connect respectively one end of capacitor C 9, the collector electrode of triode Q2 in current foldback circuit, the other end of capacitor C 9 is connected with earth terminal 8 pin of control chip U1 and meets input ground GND,
In described high pressure feedback control circuit, after being connected with its output 1 pin, inverting input 2 pin of control chip U3A connect in-phase input end 5 pin of control chip U2B by resistance R 9, capacitor C 18 is in parallel with resistance R 8, the in-phase input end 3 pin difference connecting resistance R8 of control chip U3A and one end of resistance R 7, one end of capacitor C 17, another termination input ground GND of resistance R 8, the other end of resistance R 7 meets the high-voltage output end+H.V in High voltage output current rectifying and wave filtering circuit by resistance R 6, the positive pole of diode D3 in another termination High voltage output current rectifying and wave filtering circuit of capacitor C 17, 4 pin of control chip U3A meet input ground GND, 8 pin of control chip U3A meet input supply power voltage+Vin, the inverting input 6 pin difference connecting resistance R10 of control chip U2B and one end of resistance R 11, another termination input ground GND of resistance R 10, output 7 pin of control chip U2B connect respectively in-phase input end 3 pin of control chip U2A, one end of resistance R 14, the other end of resistance R 11, another termination output monitoring side Vd of resistance R 14, the output 1 pin difference connecting resistance R12 of control chip U2A and one end of capacitor C 19, feedback end 4 pin of control chip U1 in another termination Drive and Control Circuit of resistance R 12, the other end of capacitor C 19 connects respectively inverting input 2 pin of control chip U2A by resistance R 13, one end of resistance R 15, the other end of resistance R 15 connects respectively one end of capacitor C 20 and resistance R 16, another termination output of resistance R 16 regulates control end Vadj, another termination input ground GND of capacitor C 20, 4 pin of control chip U2A meet input ground GND, 8 pin of control chip U2A meet input supply power voltage+Vin, the model of control chip U1 is: TL5001A,
In described output enable control circuit, the in-phase input end 5 pin difference connecting resistance R18 of control chip U3B and one end of resistance R 19 and capacitor C 21, another termination input supply power voltage end+Vin of capacitor C 21, control end 1 pin of adjustable reference source U4 is connected with negative electrode 3 pin, and connect respectively the positive pole of capacitor C 22, one end of resistance R 17, the other end of resistance R 18, simultaneously as reference voltage terminal Vref, the negative pole of capacitor C 22 is connected with anode 2 pin of adjustable reference source U4 and the other end of resistance R 19 and meets input ground GND, another termination input supply power voltage end+Vin of resistance R 17, one end of the inverting input 6 pin connecting resistance R20 of control chip U3B, one end of the other end connecting resistance R21 of resistance R 20 as output enable end EN, another termination reference voltage terminal Vref of resistance R 21, output 7 pin of control chip U3B connect the base stage of triode Q3 by resistance R 22, the emitter of triode Q3 meets input ground GND, the collector electrode of triode Q3 connects the ungrounded end of capacitor C 20 in high pressure feedback control circuit.
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| CN201210474589.XA CN102938613B (en) | 2012-11-21 | 2012-11-21 | Positive polarity adjustable high-voltage power circuit consisting of TL5001A |
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| CN201210474589.XA CN102938613B (en) | 2012-11-21 | 2012-11-21 | Positive polarity adjustable high-voltage power circuit consisting of TL5001A |
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| CN102938613A CN102938613A (en) | 2013-02-20 |
| CN102938613B true CN102938613B (en) | 2014-09-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106026677A (en) * | 2016-07-22 | 2016-10-12 | 东文高压电源（天津）股份有限公司 | High-voltage module power supply of microminiature low-ripple counting tube |
| CN109525223B (en) * | 2018-11-22 | 2020-06-26 | 珠海格力电器股份有限公司 | System, method and chip for obtaining working current of crystal oscillator |
| CN109412424B (en) * | 2018-12-21 | 2024-05-10 | 东文高压电源（天津）股份有限公司 | Amplitude and frequency adjustable high-voltage sine wave power supply circuit and implementation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895202A (en) * | 2010-06-12 | 2010-11-24 | 天津市东文高压电源厂 | Constant-current isolation module laser power supply |
| CN102035381A (en) * | 2010-12-14 | 2011-04-27 | 上海小糸车灯有限公司 | BOOST circuit with adjusting starting voltage |
| CN102130598A (en) * | 2011-03-21 | 2011-07-20 | 天津市东文高压电源厂 | Pulse width modulation push-pull type positive output electrostatic spinning high-voltage complete machine power supply |
| CN102255533A (en) * | 2011-06-16 | 2011-11-23 | 天津市东文高压电源厂 | PWM (pulse width modulation) push-pull type negative output electrostatic spinning high-voltage complete-machine power supply |
| CN202889203U (en) * | 2012-11-21 | 2013-04-17 | 东文高压电源（天津）有限公司 | Positive adjustable high-voltage power supply circuit consisting of TL5001A |
-
2012
- 2012-11-21 CN CN201210474589.XA patent/CN102938613B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895202A (en) * | 2010-06-12 | 2010-11-24 | 天津市东文高压电源厂 | Constant-current isolation module laser power supply |
| CN102035381A (en) * | 2010-12-14 | 2011-04-27 | 上海小糸车灯有限公司 | BOOST circuit with adjusting starting voltage |
| CN102130598A (en) * | 2011-03-21 | 2011-07-20 | 天津市东文高压电源厂 | Pulse width modulation push-pull type positive output electrostatic spinning high-voltage complete machine power supply |
| CN102255533A (en) * | 2011-06-16 | 2011-11-23 | 天津市东文高压电源厂 | PWM (pulse width modulation) push-pull type negative output electrostatic spinning high-voltage complete-machine power supply |
| CN202889203U (en) * | 2012-11-21 | 2013-04-17 | 东文高压电源（天津）有限公司 | Positive adjustable high-voltage power supply circuit consisting of TL5001A |
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Owner name: DONGWEN HIGH VOLTAGE POWER SUPPLY (TIANJIN) CO., L Free format text: FORMER NAME: TIANJIN DONGWEN HIGH-VOLTAGE POWER SUPPLY CO., LTD. |
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Address after: 300220, Tianjin, Hexi District, 20 Dongting Road, Chen Tong Technology Business District Service Center 415-3 Patentee after: Wen Dong high voltage power supply (Tianjin) Limited by Share Ltd Address before: 300171, blue mansion, No. eleven, No. 47, Hedong Road, Hedong District, Tianjin, 8F Patentee before: Tianjin Dongwen High Voltage Power Supply Plant |