Electric current closed -loop control type AC -DC conversion circuit

• Main Authors: ZHOU LIUCHUN, YU ZHIFEI, YANG QI, HAO ZHENYANG
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2017
• 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 an electric current closed -loop control type AC -DC conversion circuit, including PID regulating circuit, pulse width modulation circuit, drive circuit, electric current closed loop control circuit and AC -DC conversion main circuit, the AC -DC conversion main circuit includes rectifier bridge circuit, MOS pipe and output circuit, electric current closed loop control circuit includes multiplier, current comparator and current sampling circuit, and rectifier bridge circuit's the output and the output of PID regulating circuit are connected respectively to the input of multiplier, and current comparator's input is connected with the output of multiplier and current sampling circuit's output respectively, and the input of PID regulating circuit is connected to current comparator's output, and the MOS pipe is connected through pulse width modulation circuit and drive circuit in proper order to the PID regulating circuit. The utility model discloses an electric current closed -loop con