Double-circuit high-voltage large power IGBT (Insulated Gate Bipolar Translator) drive circuit

• Main Authors: GUO LIFENG, GENG YIWEN, ZHU FANGTIAN, LI XIAOQIANG, BAI HAOFENG, ZHU YUQIONG, WANG CHUNHUA, YAN QINGZENG, WU XIAOJIE, LI HONGLIANG, XU LIHUA
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2012
• 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; GENERATION

The invention discloses a double-circuit high-voltage large power IGBT (Insulated Gate Bipolar Translator) drive circuit and relates to the technical field of IGBT drive. The circuit consists of a double-circuit interlocking and optical signal transforming transmission circuit and a double-circuit driving module, wherein the double-circuit interlocking and optical signal transforming transmission circuit adopts a hardware interlocking circuit to interlock the received double-circuit driving signal; the interlocked driving signal is input to the double-circuit driving module to switch IGBT; the driving signal processed by the double-circuit interlocking and optical signal transforming transmission circuit is a double-circuit turn-off signal, or one-circuit signal is the turn-off signal, and the other circuit signal is an open signal. The drive circuit has the advantages that an optical fiber and an isolation power source are used as isolation media to improve the isolation voltage grade; the drive circuit is p