Anti-crosstalk active suppression system for power device

By isolating the combination of the driver IC module and the crosstalk suppression module, using the clamping mechanism of resistors and transistors and diodes, the negative crosstalk suppression problem in SiC devices is solved, improving circuit stability and EMI effect, and avoiding the disadvantage of crosstalk on the circuit. Influence.

CN222262485UActive Publication Date: 2024-12-27ZHONGKE YICHUANG (GUANGZHOU) TECH CO LTD
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Patent Information

Application Number
CN202421039174.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2024-12-27
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The existing anti-crosstalk circuit cannot effectively suppress the negative crosstalk voltage in SiC devices, resulting in the circuit stability and gate oxide layer reliability being affected, especially when the crosstalk voltage is too large, affecting the operation stability of the circuit.

Method used

The isolation driver IC module, the recommended circuit module and the crosstalk suppression module are used to suppress the positive and negative crosstalk through the combination of resistor, transistor and diode, and the gate voltage is controlled by the clamping mechanism of capacitor and resistor to achieve the Effective suppression of crosstalk.

Benefits of technology

It effectively suppresses voltage crosstalk, improves the operation stability of the circuit, reduces the risk of oxide layer reliability of the gate of SiC device, and improves the electromagnetic interference (EMI) effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of new energy motor driving, in particular to a power device anti-crosstalk active suppression system which comprises an isolation driving IC module, a push-free circuit module, a motor driving control module and a crosstalk suppression module used for suppressing positive crosstalk and negative crosstalk, the isolation driving IC module is connected with one end of the push-free circuit module, and the other end of the push-free circuit module is connected with the motor driving control module. The other end of the push-free circuit module is connected with one end of the crosstalk suppression module, the other end of the crosstalk suppression module is connected with one end of the motor driving module, voltage crosstalk is suppressed, and the stability of circuit operation is improved.
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