Turn-off bars source parasitic capacitance repid discharge circuit of PMOS power device

• Main Authors: WANG LEI, HUI JING, ZHONG MINGHANG, LI XIONG, ZHANG FAWANG, GUO XING, ZHAO YAJUAN, ZHOU-MIN YANGGUANG, SONG YAYA, XU HUISAN, QI LILI, FU YAO, FU SHAN, HAN YUEYUN, LIU SHULIN, QUAN YING, DENG JUNQING
• Format: Patent
• Language: English
• Published: 12.08.2015
• 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 utility model discloses a turn-off the bars source parasitic capacitance repid discharge circuit of PMOS power device, including NPN type triode Q1 and NPN type triode Q2, resistance R1, resistance R2, resistance R3 and resistance R4 to and electric capacity C2, NPN type triode Q1's base is drive and control circuit's input, and NPN type triode Q1's collecting electrode meets with resistance R1's one end, and resistance R1's the other end is drive and control circuit's output, one end after electric capacity C2 and resistance R2 establish ties is met with NPN type triode Q1's collecting electrode, and the other end meets with NPN type triode Q2's base, NPN type triode Q2's projecting pole meets with drive and control circuit's output. The utility model discloses circuit structure is simple, and it is convenient and with low costs to realize, can guarantee effectively that the PMOS switch tube turn-offs fast, and the practicality is strong, and market prospect is wide