A power switching device driving circuit and motor controller thereof
CN116667644BActive Publication Date: 2026-10-30ZINSIGHT FUTURE TECHNOLOGY (NANJING) CO LTD +1
Patent Information
- Application Number
- CN202310423469.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-19
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2043-04-19
Smart Images
Figure CN116667644B_ABST
Abstract
The present disclosure relates to the field of power device driving circuit, in particular to a power switch device driving circuit and a motor controller thereof, the power switch device driving circuit comprising: a power switch device; a detection unit for detecting the current rate of change di / dt, voltage rate of change du / dt and spike voltage of the power switch device when switching; a control unit for adjusting the driving resistance control circuit connected with the gate of the power switch device to realize closed-loop control of the current rate of change di / dt, voltage rate of change du / dt and spike voltage according to the current rate of change di / dt, voltage rate of change du / dt and spike voltage. The present disclosure can solve the problems such as EMC caused by the long cable total reflection of the high di / dt and du / dt encountered in the use process of the motor controller based on silicon carbide, and at the same time realizes the optimal control of the switching loss.
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Citation Information
Patent Citations
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