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IGBT driving device and system

A driving device and driving signal technology, applied in electrical components, pulse technology, electronic switches, etc., can solve the problems of complex circuit structure and low reliability, and achieve the effect of simplifying the circuit, enhancing safety, fast and more accurate protection

Inactive Publication Date: 2017-09-26
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of IGBT drive device and system, to solve the traditional IGBT drive device circuit complex structure, low reliability technical problems

Method used

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  • IGBT driving device and system
  • IGBT driving device and system
  • IGBT driving device and system

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Embodiment Construction

[0034] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0035] An embodiment of the present invention provides an IGBT driving device, such as figure 1 As shown, the IGBT drive device 1 includes: a drive control unit 2 and a voltage detection unit 3 . The drive control unit 2 is used to generate a turn-on drive signal and a turn-off drive signal, and to alternately drive an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) 4 through the ...

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Abstract

The invention discloses an IGBT driving device and system, belonging to the semiconductor power member technology field. The IGBT driving device and system solve problems that a conventional IGBT driving device is complex in the circuit and low in reliability. The driving device comprises a driving control unit and a voltage detection unit; the driving control unit is used for generating a turning-on driving signal and a turning-off driving signal, is used for performing staggered driving through the turning-on driving signal and the turning-off driving signal under control of a PWM signal and is used for performing soft turning-off on the IGBT through the turning-on driving signal and the turning-off driving signal when the IGBT is in short circuit; the voltage detection unit is used for detecting voltage between an a collector electrode and an emission electrode of the IGBT and determining whether a short circuit occurs on the IGBT according to the voltage between the collector electrode and the emission electrode.

Description

technical field [0001] The invention relates to the technical field of semiconductor power devices, in particular to an IGBT driving device and system. Background technique [0002] IGBT devices have been widely used in power electronics fields such as traction electric transmission, power transmission and conversion, and active filtering. AC drive is an important direction for the development of railway traction power in my country. High-power AC drive electric locomotives are all realized by traction converters based on IGBT devices. The converter module is the core key component of the converter system for rolling stock. In the converter system, the driving of high-power IGBT devices is an important link, and its performance is directly related to the safety and reliability indicators of the entire system. The improvement of the performance of the drive circuit can reduce the IGBT switching delay, reduce the switching loss, and obtain good turn-on and turn-off performan...

Claims

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Application Information

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IPC IPC(8): H03K17/0812H03K17/567
CPCH03K17/08128H03K17/567
Inventor 唐威忻力杨涛胡家喜陈燕平李华魏海山欧阳柳曹超马龙昌
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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