一种高可靠性IGBT驱动电路设计OA

For the application of high-power IGBT,its driving circuit is the core part of the entire power module.The reliability of the driving circuit to a certain extent determines the reliability of the entire power electronic device,and designing highly reliable driving circuits has practical significance.The intelligent driving optocoupler ACPL-332J was taken as an example to design a high-efficiency and high reliability driving circuit and power supply circuit.The problem of low utilization of power supply voltage in the driving chip has been solved by driving the voltage boosting circuit.By designing a short-circuit current limiting circuit for the power supply,gate short-circuit protection has been achieved.Finally,the driver circuit was applied to the Fuji 2MBI600XNG170-50 module and passed the gate short-circuit test and main circuit short-circuit test.The driver circuit has been applied in the company's new products and its stability and safety have been verified through on-site use.