INTELLIGENT MULTISTAGE POWER CONVERSION SWITCHING POWER SUPPLY UNIT

摘要

PROBLEM TO BE SOLVED: To provide an intelligent multistage power conversion switching power supply unit.SOLUTION: The output of a bridge rectifier 1 connects to the input of an EMI filter 2. The output of the EMI filter 2 connects to a microcontroller 4 through a standby topology 3 and connects to two or more different energy topology 15, 16, and 17 through different MOS FET switches 12, 13, and 14. The standby topology 3 connects to a load 5 through a standby current sensor 7 and a load detection circuit 6. The energy topology 15, 16, and 17 respectively connect to the load 5 through operating current sensors 18, 19, and 20, which respectively correspond to the energy topology 15, 16, and 17. The outputs of the standby current sensor 7, the operating current sensors 18, 19, and 20, and the load detection circuit 6 respectively connect to the input of the microcontroller 4, and the output of the microcontroller 4 connects to the input of each of the multiple MOSFET switches 12, 13, and 14.