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High compatibility igbt driver

A driving device and driving resistor technology, which is applied to output power conversion devices, electrical components, electronic switches, etc., can solve the problems of poor compatibility and reliability of IGBT driving circuits, and achieve enhanced anti-interference performance, high driving power, and compatibility good sex effect

Active Publication Date: 2017-04-05
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of poor compatibility and poor reliability of IGBT drive circuits, the present invention provides a highly compatible IGBT drive device

Method used

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Examples

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Embodiment Construction

[0034] A highly compatible IGBT driving device, comprising a data acquisition control circuit; the data acquisition control circuit includes an internal circuit U1 and drive resistors R8, R9, R10, R11; said U1 is provided with SO, GND, VCC, VDC, VCE , REF, ACL, GL, V0, GH, V+, V- ports; the SO port of U1 is connected to the resistor R1 through the Schmitt trigger converter U2; U2 includes two channels U2A and U2B, and the fourteenth pin of U2A is connected to The VCC terminal of U1 is connected to the ground through the capacitor C2, and the seventh pin of U2A is grounded; the VCC terminal of U1 is grounded through the capacitor C1; the VCC terminal of U1 is grounded through the capacitor C1, and the VCC terminal is connected to the VDC terminal; the VCE of U1 One end is divided into two circuits, one is connected to diode D61 through resistor R2, the negative pole of D61 is connected to V+ terminal of U1, and the other is connected to V- terminal of U1 through capacitor C3; on...

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Abstract

The invention relates to driving technology of power modules, in particular to a high-compatibility IGBT (insulated gate bipolar transistor) driving device. Aiming at on-off control of an IGBT in a power module, the IGBT driving device is responsible for receiving a driving signal of a TCU, and the driving signal is isolated and converted to control on and off of the IGBT; the IGBT driving device isolates a control power source from high voltage on the IGBT side to prevent damage, to other circuits, of high voltage of a main loop. The IGBT driving device is characterized in that a driving circuit and a configuring circuit are designed separately, the configuring circuit can be directly mounted on an IGBT device, so that anti-interference performance of the driving circuit is improved; the IGBT driving device is high driving power, so that driving voltage of +15V / -10V can be provided; the IGBT driving device has a complete protecting function, such as dynamic Vce monitoring is adopted to realize short-circuit protection, and dynamic clamping is adopted to realize overvoltage protection during turning off; the IGBT driving device is high in isolating voltage class between a high-voltage loop and a low-voltage loop, so that needs on IGBT driving and protecting at voltage class of 6500V and below are met.

Description

technical field [0001] The invention relates to a driving technology of a power module, in particular to a highly compatible IGBT driving device. Background technique [0002] With the development of train AC technology, converters using high-frequency and high-power IGBTs as switching elements are increasingly used. The power module is one of the most critical components in the train converter, and the design of its drive circuit has an extremely important impact on the correct and reliable operation of the entire power module. Although there are mature technologies for IGBT driving and protection in the prior art, they have poor compatibility and poor reliability at different voltage levels of 6500V and below. [0003] Cables are used for signal transmission between the Traction Control Unit (hereinafter referred to as TCU) and the drive circuit, and the transmission signal has poor anti-interference performance. At the same time, the compatibility of the drive circuit i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/092H03K17/567
Inventor 王雷张晋芳牛勇李锦杨璐王绛波
Owner CRRC YONGJI ELECTRIC CO LTD
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