CN103346664A - Novel IGBT driving device applicable to high-power electric locomotive - Google Patents
Novel IGBT driving device applicable to high-power electric locomotive Download PDFInfo
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- CN103346664A CN103346664A CN2013102566669A CN201310256666A CN103346664A CN 103346664 A CN103346664 A CN 103346664A CN 2013102566669 A CN2013102566669 A CN 2013102566669A CN 201310256666 A CN201310256666 A CN 201310256666A CN 103346664 A CN103346664 A CN 103346664A
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- optocoupler
- driving device
- electric locomotive
- igbt
- igbt driving
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Abstract
The invention relates to an IGBT technology, in particular to a novel IGBT driving device applicable to a high-power electric locomotive. The novel IGBT driving device solves the problems that an existing IGBT driving device is low in isolation voltage level, low in driving power, in lack of an overvoltage protection function, and in lack of a short circuit protection function. The IGBT driving device applicable to the high-power electric locomotive comprises an eighteen-core connector, an isolation transformer, an optocoupler, a six-core connector and a substrate. The output end of the eighteen-core connector is connected with a primary coil of the isolation transformer, a secondary coil of the isolation transformer is connected with the input end of the optocoupler, the output end of the optocoupler is connected with the input end of the six-core connector, and the eighteen-core connector, the isolation transformer, the optocoupler and the six-core connector are all installed on the substrate. The IGBT driving device is applicable to output control of alternating-current motors of electric locomotives and electric vehicles.
Description
Technical field
The present invention relates to the IGBT technology, specifically is a kind of New IGBT drive unit that is applicable to the high-power electric locomotive.
Background technology
IGBT(Insulated Gate Bipolar Transistor, the insulated gate bipolar transistor npn npn) by the BJT(double pole triode) and the MOS(insulating gate type field effect tube) the compound full-control type voltage driven type power semiconductor formed, it has the advantage of low conduction voltage drop two aspects of the high input impedance of MOSFET and GTR concurrently, thereby it is widely used in output control of the alternating current motor of electric locomotive, motor vehicle.In the application of IGBT, the IGBT drive unit is mainly used in driving IGBT, to guarantee the operate as normal of IGBT.Under the prior art condition, the IGBT drive unit is because self structure is limit the following problem of ubiquity: one, the lower grade of isolation voltage between the high-low circuit of existing IGBT drive unit, causes the safety in utilization of IGBT poor thus.Its two, the driving power of existing IGBT drive unit is lower, causes the use very flexible of IGBT thus.Its three, existing IGBT drive unit lacks overvoltage protection and short-circuit protection function, causes the useful life of IGBT short thus, poor reliability.Based on this, be necessary to invent a kind of brand-new IGBT drive unit, existing IGBT drive unit isolation voltage grade is low, driving power is low and lack overvoltage protection and the problem of short-circuit protection function to solve.
Summary of the invention
Existing IGBT drive unit isolation voltage grade is low, driving power is low and lack overvoltage protection and the problem of short-circuit protection function, and a kind of New IGBT drive unit that is applicable to the high-power electric locomotive is provided in order to solve in the present invention.
The present invention adopts following technical scheme to realize: be applicable to the New IGBT drive unit of high-power electric locomotive, comprise 18 core connectors, isolating transformer, optocoupler, 6 core connector and substrates; Wherein, the output of 18 core connectors is connected with the primary coil of isolating transformer; The secondary coil of isolating transformer is connected with the input of optocoupler; The output of optocoupler is connected with the input of 6 core connectors; 18 core connectors, isolating transformer, optocoupler, 6 core connectors all are installed on the substrate.
During work, the input of 18 core connectors is connected with the outer low pressure connector, and the output of 6 core connectors is connected with exterior I GBT configuration wiring board.The concrete course of work is as follows: the PWM that 18 core connectors receive from the outer low pressure connector drives signal, and PWM is driven signal is sent to isolating transformer.Isolating transformer drives signal to the PWM that receives isolates, and the driving of the PWM after will isolating signal is sent to optocoupler.Optocoupler drives signal to the PWM that receives and carries out conversion, and drives signal by the PWM of 6 core connectors after with conversion and be sent to exterior I GBT configuration wiring board.Based on said process, compare with existing IGBT drive unit, the New IGBT drive unit of high-power electric locomotive that is applicable to of the present invention possesses following advantage: one, the New IGBT drive unit of high-power electric locomotive that is applicable to of the present invention adopts isolating transformer that PWM driving signal is isolated, effectively improve the isolation voltage grade between its high-low circuit thus, thereby effectively strengthened the safety in utilization of IGBT.Its two, the New IGBT drive unit that is applicable to the high-power electric locomotive of the present invention adopts optocoupler that PWM is driven signal to carry out conversion, effectively improved driving power thus, thereby effectively strengthened the use flexibility of IGBT.They are three years old; the New IGBT drive unit of high-power electric locomotive that is applicable to of the present invention adopts isolating transformer that PWM driving signal is isolated; and adopt optocoupler that PWM is driven signal and carry out conversion; possessed overvoltage protection and short-circuit protection function thus, thereby effectively prolonged the useful life of IGBT, effectively strengthened the reliability of IGBT.In sum; the New IGBT drive unit that is applicable to the high-power electric locomotive of the present invention is by adopting brand new, efficiently solves that existing IGBT drive unit isolation voltage grade is low, driving power is low and lack overvoltage protection and the problem of short-circuit protection function.
The present invention efficiently solves that existing IGBT drive unit isolation voltage grade is low, driving power is low and lack overvoltage protection and the problem of short-circuit protection function; be applicable to the output control of the alternating current motor of electric locomotive, motor vehicle, be particularly useful for the output control of the alternating current motor of high-power electric locomotive.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1-18 core connector, 2-isolating transformer, 3-optocoupler, 4-6 core connector, 5-substrate.
Embodiment
Be applicable to the New IGBT drive unit of high-power electric locomotive, comprise 18 core connectors 1, isolating transformer 2, optocoupler 3,6 core connectors 4 and substrate 5; Wherein, the output of 18 core connectors 1 is connected with the primary coil of isolating transformer 2; The secondary coil of isolating transformer 2 is connected with the input of optocoupler 3; The output of optocoupler 3 is connected with the input of 6 core connectors 4; 18 core connectors 1, isolating transformer 2, optocoupler 3,6 core connectors 4 all are installed on the substrate 5.
Claims (1)
1. a New IGBT drive unit that is applicable to the high-power electric locomotive is characterized in that: comprise 18 core connectors (1), isolating transformer (2), optocoupler (3), 6 core connectors (4) and substrate (5); Wherein, the output of 18 core connectors (1) is connected with the primary coil of isolating transformer (2); The secondary coil of isolating transformer (2) is connected with the input of optocoupler (3); The output of optocoupler (3) is connected with the input of 6 core connectors (4); 18 core connectors (1), isolating transformer (2), optocoupler (3), 6 core connectors (4) all are installed on the substrate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102566669A CN103346664A (en) | 2013-06-26 | 2013-06-26 | Novel IGBT driving device applicable to high-power electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102566669A CN103346664A (en) | 2013-06-26 | 2013-06-26 | Novel IGBT driving device applicable to high-power electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103346664A true CN103346664A (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102566669A Pending CN103346664A (en) | 2013-06-26 | 2013-06-26 | Novel IGBT driving device applicable to high-power electric locomotive |
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| CN (1) | CN103346664A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040125617A1 (en) * | 2002-12-30 | 2004-07-01 | Industrial Technology Research Institute | Programmable photo-coupler-isolated wide band modulator for high voltage power supply |
| CN202111674U (en) * | 2011-06-14 | 2012-01-11 | 株洲科瑞变流电气有限公司 | PWM signal driving device |
| CN202918184U (en) * | 2012-10-17 | 2013-05-01 | 深圳市禾望电气有限公司 | Three-level IGBT (Insulated Gate Bipolar Translator) driving module |
-
2013
- 2013-06-26 CN CN2013102566669A patent/CN103346664A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040125617A1 (en) * | 2002-12-30 | 2004-07-01 | Industrial Technology Research Institute | Programmable photo-coupler-isolated wide band modulator for high voltage power supply |
| CN202111674U (en) * | 2011-06-14 | 2012-01-11 | 株洲科瑞变流电气有限公司 | PWM signal driving device |
| CN202918184U (en) * | 2012-10-17 | 2013-05-01 | 深圳市禾望电气有限公司 | Three-level IGBT (Insulated Gate Bipolar Translator) driving module |
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Application publication date: 20131009 |