CN203608076U - A high voltage IGVT driving and protection circuit - Google Patents
A high voltage IGVT driving and protection circuit Download PDFInfo
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- CN203608076U CN203608076U CN201320668818.1U CN201320668818U CN203608076U CN 203608076 U CN203608076 U CN 203608076U CN 201320668818 U CN201320668818 U CN 201320668818U CN 203608076 U CN203608076 U CN 203608076U
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- 230000001681 protective effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000003137 locomotive effect Effects 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
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- 230000002457 bidirectional effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model discloses a high voltage IGVT driving and protection circuit comprising a signal processing circuit, an isolation transformer transmission circuit, an isolation power supply circuit, an under-voltage protection circuit, a gate electrode clamping circuit, a short circuit protection circuit, an IGBT dynamic failure detection circuit, an insulated gate bipolar transistor and a power supplying power supply. The high voltage IGVT driving and protection circuit of the utility model has advantages that the high voltage IGVT driving and protection circuit can work in a high voltage operation environment and output a relatively large power; the high voltage IGVT driving and protection circuit is very high in working efficiency; the high voltage IGVT driving and protection circuit can rapidly respond, and a low input output time delay is on a [mu]s level; the high voltage IGVT driving and protection circuit has relatively strong anti-interference capability; through the input of a bus voltage of 1800V, driving isolation capability of above 4000V can be realized; the safety of the system is substantially guaranteed; working state information transmitted to the high voltage IGVT driving and protection circuit of the utility model through feedback signals can be monitored and controlled in real time by a central control unit; and the reliability of the system is greatly raised. The high voltage IGVT driving and protection circuit of the utility model can be widely applied to industrial control fields which have needs for power supply conversion.
Description
Technical field
The utility model relates to high pressure IGBT and drives and protective circuit, belongs to electric and electronic technical field.
Background technology
Insulated gate bipolar transistor IGBT (Insulated Gate Bipolar Transistor), the compound full-control type voltage driven type power semiconductor being made up of BJT (double pole triode) and MOS (insulating gate type field effect tube), has the advantage of the high input impedance of MOSFET and low conduction voltage drop two aspects of GTR concurrently.GTR saturation pressure reduces, and current carrying density is large, but drive current is larger, and MOSFET driving power is very little, and switching speed is fast, but conduction voltage drop is large, and current carrying density is little.IGBT combines the advantage of above two kinds of devices, and the little and saturation pressure of driving power reduces.Be applicable to being very much applied to direct voltage and be 600V and above converter system as fields such as alternating current machine, frequency converter, Switching Power Supply, lighting circuit, Traction Drives.
At present, high-power IGBT device has obtained using widely in modern electric locomotive transmission system.In high-power application, system works frequency is not high, and IGBT is generally operational under hard switching mode, to having relatively high expectations of device drive protection.The developing trend of high-voltage great-current IGBT is at present in reducing saturation voltage VCE, and turn-off power loss Eoff, improves short circuit tolerance, makes IGBT turn-off the soft and soft recovery of anti-paralleled diode.IGBT gate circuit, as the bridge that connects control end and main circuit, has important function to the conducting state, optimization switch performance and the protection IGBT that control IGBT.
Along with the development of power electronic technology, electric drive control plays a part very important, in order to meet the requirement of high-performance, energy-conservation and environmental protection, Alternating Current Speed Regulation Controlling System just progressively replaces traditional DC speed regulation with its distinctive advantage, is playing the part of important role in electric drive field.The accessory power supply of electric locomotive is mainly main circuit of electric locomotive and provides cooling, provides electric energy for Pneumatic brake systems; The working condition of AuCT directly has influence on the operating state of main circuit, and driver and conductor's operational environment, is that locomotive is stable, the key of safe operation.
But condition lower time that traditional AuCT is operated in high-power inevitably exists the defects such as the response speed of circuit is slow, poor anti jamming capability, inefficiency, thereby safety and the reliability of system are affected widely.
Utility model content
The purpose of this utility model is to provide a kind of high pressure IGBT that can overcome above-mentioned technical problem to drive and protective circuit, and the utility model comprises: signal processing circuit, isolating transformer transmission circuit, insulating power supply circuit, under-voltage protecting circuit, gate pole clamp circuit, short-circuit protection circuit, IGBT Dynamic Fault-Detection circuit, insulated gate bipolar transistor (IGBT), power supply.
Described signal processing circuit, isolating transformer transmission circuit, gate pole clamp circuit, IGBT Dynamic Fault-Detection circuit, insulated gate bipolar transistor (IGBT) connect successively;
Described power supply, insulating power supply circuit, under-voltage protecting circuit, insulated gate bipolar transistor (IGBT), IGBT Dynamic Fault-Detection circuit connect successively;
Described insulating power supply circuit, short-circuit protection circuit, insulated gate bipolar transistor (IGBT), IGBT Dynamic Fault-Detection circuit connect successively;
Described signal processing circuit is connected with under-voltage protecting circuit and short-circuit protection circuit respectively.
Described signal processing circuit mainly comprises that logic judges chip; described signal processing circuit is for detection of the signal being provided by isolating transformer transmission circuit, short-circuit protection circuit and under-voltage protecting circuit and the signal being provided by isolating transformer transmission circuit, short-circuit protection circuit and under-voltage protecting circuit is carried out to logic judgement and process, with the safety that ensures gate electrode drive signals output with reliable.
The utility model adopts described isolating transformer transmission circuit to isolate to described power supply, realizes the electrical isolation of power supply and control signal, guarantees the safety between control signal and power supply.
In order to strengthen isolating power, described insulating power supply circuit adopts operate in open loop state mode, and voltage stabilization is realized by the linear voltage regulator of rear class.
Described under-voltage protecting circuit comprise 15V under-voltage protecting circuit and-15V under-voltage protecting circuit.Once power supply breaks down, there is under-voltage situation, under-voltage protecting circuit output fault-signal, blocks gate pulse.
In the time of short circuit, described short-circuit protection circuit output fault-signal, blocks gate pulse.
Described gate pole clamp circuit connects IGBT for guaranteeing door emitter voltage stable of IGBT, to reach the object of gate pole overvoltage clamping protection.
Described IGBT Dynamic Fault-Detection circuit, by feedback signal of the present utility model, is transferred to central control unit (ACU).Be that ACU receives respectively the under-voltage fault-signal that comes from under-voltage protecting circuit of the present utility model and the short trouble signal that comes from short-circuit protection circuit; ACU judges operating state of the present utility model and failure condition by detection; dynamically show operating state of the present utility model; then; ACU exports pending signal to the utility model, controls operating state of the present utility model.
The function that the utility model can be realized is as follows:
(1) there is enough driving powers, suitable forward grid voltage can be provided, enough reverse shutoff grid voltages can be provided when shutoff, there is capability of fast response, there is low input and output time of delay.
(2) there is enough isolation voltage grades, and have compared with strong anti-interference ability, the busbar voltage of input 1800V, the utility model driving isolation ability is more than 4000V.
(3) can accurately detect IGBT short trouble, can carry out reliable and effectively turn-off.
The utility model has the advantages that and can be operated in high-voltage operation environment and can export larger power, the utility model can be operated in can realize in track traffic the function of secondary power system in electric locomotive under the condition of high-power, the utlity model has very high operating efficiency simultaneously, the utility model can respond fast, low input and output time of delay is in μ s rank, there is stronger antijamming capability, the busbar voltage of the 1800V of input, can realize driving isolation ability more than 4000V, greatly guarantee the safety of system; Be transferred to work state information of the present utility model by feedback signal simultaneously and can be long-rangely carried out Real-Time Monitoring and control by central control unit, greatly improve the reliability of system, the utility model can be widely used in transforming for power supply the industrial control field that has needs, has stronger practical value and realistic meaning.
Accompanying drawing explanation
Fig. 1 is the integrated circuit figure of high pressure IGBT driving described in the utility model and protective circuit;
Fig. 2 is the isolating transformer transmission circuit figure of high pressure IGBT driving described in the utility model and protective circuit;
Fig. 3 is the insulating power supply circuit diagram of high pressure IGBT driving described in the utility model and protective circuit;
Fig. 4 is that high pressure IGBT described in the utility model drives and protective circuit-15V under-voltage protecting circuit figure;
Fig. 5 is the 15V under-voltage protecting circuit figure of high pressure IGBT driving described in the utility model and protective circuit;
Fig. 6 is the short-circuit protection circuit figure of high pressure IGBT driving described in the utility model and protective circuit;
Fig. 7 is the gate pole clamp circuit figure of high pressure IGBT driving described in the utility model and protective circuit;
Fig. 8 is the IGBT Dynamic Fault-Detection circuit diagram of high pressure IGBT driving described in the utility model and protective circuit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.As shown in Figure 1, the utility model comprises:
Signal processing circuit, isolating transformer transmission circuit, insulating power supply circuit, under-voltage protecting circuit, gate pole clamp circuit, short-circuit protection circuit, IGBT Dynamic Fault-Detection circuit, insulated gate bipolar transistor (IGBT), power supply.
Described signal processing circuit, isolating transformer transmission circuit, gate pole clamp circuit, IGBT Dynamic Fault-Detection circuit, insulated gate bipolar transistor (IGBT) connect successively;
Described power supply, insulating power supply circuit, under-voltage protecting circuit, insulated gate bipolar transistor (IGBT), IGBT Dynamic Fault-Detection circuit connect successively;
Described insulating power supply circuit, short-circuit protection circuit, insulated gate bipolar transistor (IGBT), IGBT Dynamic Fault-Detection circuit connect successively;
Described signal processing circuit is connected with under-voltage protecting circuit and short-circuit protection circuit respectively.
Described signal processing circuit mainly comprises that logic judges that chip TC428, logic judge chip TC426; described signal processing circuit is for detection of the signal being provided by isolating transformer transmission circuit, short-circuit protection circuit and under-voltage protecting circuit and the signal being provided by isolating transformer transmission circuit, short-circuit protection circuit and under-voltage protecting circuit is carried out to logic judgement and process, with the safety that ensures gate electrode drive signals output with reliable.
Described isolating transformer transmission circuit, as shown in Figure 2;
The utility model adopts isolating transformer transmission circuit to isolate to power supply, realizes the electrical isolation of power supply and control signal, guarantees the safety between control signal and power supply.Isolating transformer transmission circuit adopts 1 primary coil (as 12 in Fig. 2,14) and 2 secondary coils (as 3 in Fig. 2,5 and 4,6) composition, and the winding no-load voltage ratio of 3 coils is 1:1:1.
Described insulating power supply circuit, as shown in Figure 3;
In order to strengthen isolating power, insulating power supply circuit adopts operate in open loop state mode, and voltage stabilization is realized by the linear voltage regulator of rear class.Provide power supply to use to the voltage stabilizing chip A31 in Fig. 3, voltage stabilizing chip A32 by 4,6 and 3,5 two secondary coil outputs in Fig. 2; the input of voltage stabilizing chip A31, voltage stabilizing chip A32 arranges electrochemical capacitor C31, electrochemical capacitor C32; with the safety of protective separation power circuit and stable; insulating power supply circuit output voltage is respectively V2P+=15V; V2P-=﹣ 15V, output voltage is for the utility model.
Described under-voltage protecting circuit, as shown in Figure 4, Figure 5;
Described under-voltage protecting circuit comprises Fig. 4's-the 15V under-voltage protecting circuit of 15V under-voltage protecting circuit and Fig. 5.Once power supply breaks down, there is under-voltage situation, under-voltage protecting circuit output fault-signal, blocks gate pulse.
Described short-circuit protection circuit, as shown in Figure 6;
In the time of short circuit, short-circuit protection circuit output fault-signal, blocks gate pulse.
Described gate pole clamp circuit, as shown in Figure 7;
Gate electrode drive signals 1 of the present utility model is connected IGBT with gate electrode drive signals 2 by gate pole clamp circuit, has a bidirectional transient voltage suppressor (TVS61) on gate pole clamp circuit, and its voltage stabilizing value is identical with positive grid voltage and the minus gate voltage of IGBT.Can guarantee like this door emitter voltage stable of IGBT, to reach the object of gate pole overvoltage clamping protection.
Described IGBT Dynamic Fault-Detection circuit, as shown in Figure 8;
Described IGBT Dynamic Fault-Detection circuit, by feedback signal of the present utility model, is transferred to central control unit (ACU).Be that ACU receives respectively the under-voltage fault-signal that comes from under-voltage protecting circuit of the present utility model and the short trouble signal that comes from short-circuit protection circuit; ACU judges operating state of the present utility model and failure condition by detection; dynamically show operating state of the present utility model; then; ACU exports pending signal to the utility model; as shown in Figure 1, control operating state of the present utility model.
As shown in Figure 1, groundwork principle of the present utility model is: after outside pending signal enters the utility model, by isolating transformer transmission circuit entering signal treatment circuit.Power supply is that short-circuit protection circuit and under-voltage protecting circuit in the utility model powered by insulating power supply circuit.Short-circuit protection circuit and under-voltage protecting circuit, by detecting the operating state of IGBT, offer signal processing circuit by feedback signal.The various signals that signal processing circuit receives by processing, output gate electrode drive signals.Between signal processing circuit and IGBT, there is gate pole clamp circuit to protect the safety of IGBT simultaneously.
The utility model can be operated in can realize in track traffic the function of secondary power system in electric locomotive under the condition of high-power.
The above; it is only embodiment of the present utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the utility model scope of disclosure; the variation that can expect easily or replacement, all should be encompassed in the protection range of the utility model claim.
Claims (1)
1. high pressure IGBT drives and protective circuit, it is characterized in that, comprising: signal processing circuit, isolating transformer transmission circuit, insulating power supply circuit, under-voltage protecting circuit, gate pole clamp circuit, short-circuit protection circuit, IGBT Dynamic Fault-Detection circuit, insulated gate bipolar transistor, power supply;
Described signal processing circuit, isolating transformer transmission circuit, gate pole clamp circuit, IGBT Dynamic Fault-Detection circuit, insulated gate bipolar transistor connect successively;
Described power supply, insulating power supply circuit, under-voltage protecting circuit, insulated gate bipolar transistor, IGBT Dynamic Fault-Detection circuit connect successively;
Described insulating power supply circuit, short-circuit protection circuit, insulated gate bipolar transistor, IGBT Dynamic Fault-Detection circuit connect successively;
Described signal processing circuit is connected with under-voltage protecting circuit and short-circuit protection circuit respectively;
Described signal processing circuit comprises that logic judges chip; described signal processing circuit is for detection of the signal being provided by isolating transformer transmission circuit, short-circuit protection circuit and under-voltage protecting circuit and the signal being provided by isolating transformer transmission circuit, short-circuit protection circuit and under-voltage protecting circuit is carried out to logic judgement and process, with the safety that ensures gate electrode drive signals output with reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668818.1U CN203608076U (en) | 2013-10-28 | 2013-10-28 | A high voltage IGVT driving and protection circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668818.1U CN203608076U (en) | 2013-10-28 | 2013-10-28 | A high voltage IGVT driving and protection circuit |
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| CN203608076U true CN203608076U (en) | 2014-05-21 |
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| CN201320668818.1U Expired - Fee Related CN203608076U (en) | 2013-10-28 | 2013-10-28 | A high voltage IGVT driving and protection circuit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546020A (en) * | 2013-10-28 | 2014-01-29 | 北京京铁信达铁路设备有限公司 | High-voltage IGBT driving and protecting circuit |
| CN104052248A (en) * | 2014-06-25 | 2014-09-17 | 台达电子企业管理（上海）有限公司 | Electricity conversion device and protective signal transmission method thereof |
| CN105262468A (en) * | 2015-11-03 | 2016-01-20 | 佛山市南海区联合广东新光源产业创新中心 | IGBT protection and drive circuit |
| CN107508255A (en) * | 2017-08-31 | 2017-12-22 | 深圳市亚特尔科技有限公司 | A kind of power signal source Drive Protecting Circuit |
| CN108233338A (en) * | 2016-12-15 | 2018-06-29 | 博世力士乐(西安)电子传动与控制有限公司 | Converter power supply device and the frequency converter comprising the device |
| CN114204834A (en) * | 2021-11-25 | 2022-03-18 | 智新控制系统有限公司 | Gate drive protection circuit, system and vehicle inverter system |
| CN115811306A (en) * | 2022-11-23 | 2023-03-17 | 上海希形科技有限公司 | Digital driving protection system and method for power electronic switching device |
-
2013
- 2013-10-28 CN CN201320668818.1U patent/CN203608076U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546020A (en) * | 2013-10-28 | 2014-01-29 | 北京京铁信达铁路设备有限公司 | High-voltage IGBT driving and protecting circuit |
| CN103546020B (en) * | 2013-10-28 | 2016-08-31 | 北京京铁信达铁路设备有限公司 | High pressure IGBT drives and protection circuit |
| CN104052248A (en) * | 2014-06-25 | 2014-09-17 | 台达电子企业管理（上海）有限公司 | Electricity conversion device and protective signal transmission method thereof |
| CN104052248B (en) * | 2014-06-25 | 2016-08-24 | 台达电子企业管理（上海）有限公司 | Power-converting device and protection signal transfer method thereof |
| CN105262468A (en) * | 2015-11-03 | 2016-01-20 | 佛山市南海区联合广东新光源产业创新中心 | IGBT protection and drive circuit |
| CN108233338A (en) * | 2016-12-15 | 2018-06-29 | 博世力士乐(西安)电子传动与控制有限公司 | Converter power supply device and the frequency converter comprising the device |
| CN108233338B (en) * | 2016-12-15 | 2021-04-30 | 博世力士乐(西安)电子传动与控制有限公司 | Frequency converter power supply device and frequency converter comprising same |
| CN107508255A (en) * | 2017-08-31 | 2017-12-22 | 深圳市亚特尔科技有限公司 | A kind of power signal source Drive Protecting Circuit |
| CN107508255B (en) * | 2017-08-31 | 2019-05-07 | 深圳市亚特尔科技有限公司 | A kind of power signal source Drive Protecting Circuit |
| CN114204834A (en) * | 2021-11-25 | 2022-03-18 | 智新控制系统有限公司 | Gate drive protection circuit, system and vehicle inverter system |
| CN115811306A (en) * | 2022-11-23 | 2023-03-17 | 上海希形科技有限公司 | Digital driving protection system and method for power electronic switching device |
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