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Communication method, device and equipment for IGBT (Insulated Gate Bipolar Translator) driving

A communication method and driver board technology, applied in the direction of transmission modification based on link quality, signaling distribution, signaling as a feature, etc., can solve problems such as optimal control and fault analysis of unfavorable IGBTs

Pending Publication Date: 2022-03-11
INVT POWER ELECTRONICS SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional IGBT drive circuit and control circuit can only realize the switching control of IGBT and the transmission of simple fault information, which is not conducive to the optimal control and fault analysis of IGBT

Method used

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  • Communication method, device and equipment for IGBT (Insulated Gate Bipolar Translator) driving
  • Communication method, device and equipment for IGBT (Insulated Gate Bipolar Translator) driving
  • Communication method, device and equipment for IGBT (Insulated Gate Bipolar Translator) driving

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Embodiment approach

[0088] Further, on the basis of the above-mentioned embodiments, as a specific implementation manner, it also includes:

[0089] Receive the idle bit sent by the control board after sending the data frame; the idle bit adopts Manchester encoding, and the total duration of the opening signal, the data frame and the idle bit is consistent with the PWM pulse signal High level consistent.

[0090] Specifically, when the total duration of the opening signal and the data frame does not reach the duration of the high level of the PWM control signal, after the control board sends the data frame to the driving board, it then sends the data frame to the driving board. free bit. Wherein, the idle bits are coded by Manchester coding. According to the Manchester encoding principle, during the period of sending idle bits, the signal output from the control board to the driver board will not appear continuous low level, so that it will not be confused with the shutdown signal.

[0091] In...

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Abstract

The invention discloses a communication method for IGBT (Insulated Gate Bipolar Translator) driving, which comprises the following steps: when an IGBT is turned on, sequentially sending a turn-on signal and a data frame to a driving board of the IGBT; the opening signal is a level signal, the data frame is encoded by Manchester encoding, and the data frame comprises a control command and corresponding control data; when the IGBT is turned off, a turn-off signal is sent to the driving board; receiving a response signal and a state data frame sequentially sent by the driving board; the response signal is a level signal, the state data frame is encoded by Manchester encoding, and the state data frame comprises a data identifier and corresponding state data. By applying the method, IGBT switch control can be realized, and meanwhile, transmission of an IGBT driving strategy and IGBT state data can be completed. The invention further discloses another communication method, communication device and equipment for IGBT driving and a computer readable storage medium, which all have the above technical effects.

Description

technical field [0001] The present application relates to the technical field of power electronic devices, in particular to a communication method for IGBT driving; and also relates to a communication device, equipment and computer-readable storage medium for IGBT driving. Background technique [0002] High-power IGBT (Insulated Gate Bipolar Transistor, Insulated Gate Bipolar Transistor) will be subjected to electrical and thermal stress for a long time during operation. As the effect continues to accumulate, it will lead to a decline in device performance. The IGBT drive circuit is the hub connecting the control circuit and the main circuit, which is directly related to the safety and stability of the device and the system. The traditional IGBT drive circuit and control circuit can only realize IGBT switch control and simple fault information transmission, which is not conducive to the optimal control and fault analysis of IGBT. Therefore, how to realize the two-way data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L5/00H04L25/49
CPCH04L1/0025H04L5/0053H04L25/4904
Inventor 耿程飞吴轩钦周志达高瞻
Owner INVT POWER ELECTRONICS SUZHOU CO LTD
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