IGBT driving circuit, driver and electronic device

• Main Authors: LIU JIE, RONG CHUNHUI, ZHU WU, TIAN WEI, TAN YIFAN, XIE SHUNMENG, ZHANG RONG
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The embodiment of the invention provides an IGBT (Insulated Gate Bipolar Transistor) driving circuit, a driver and an electronic device, and solves the problem that the turn-off overvoltage failure of a transistor device exists when bridge arms of an IGBT are used in parallel at present. The IGBT driving circuit receives a control signal power supply of an external control board and is used for driving the IGBT; the IGBT drive circuit comprises an isolation circuit, a drive and protection circuit and a short circuit detection circuit. The isolation circuit receives voltage and signals from an external control board and then provides a power supply and signals for the IGBT driving and IGBT protection circuit. The driving and protecting circuit is used for driving and protecting the IGBT; the short circuit detection circuit is used for detecting the voltage of the first electrodes of at least two IGBTs, and the at least two IGBT bridge arms are connected in parallel. 本发明实施例提供了一种IGBT驱动电路、驱动器及电子装置，解决了目前IGBT在桥臂并联使