公开(公告)号：US20230336001A1

公开(公告)日：2023-10-19

申请号：US17984516

申请日：2022-11-10

Applicant: FSP TECHNOLOGY INC.

Inventor： Chien-Li TSAI ,  Chih-Fan LIN ,  Chih-Hsien HSIEH

IPC: H02J3/46 ,  H02J3/38

CPC classification number: H02J3/46 ,  H02J3/381 ,  H02M7/12

Abstract: A power supply system with current sharing includes a current sharing bus, a plurality of power supply units, and a plurality of controllers. The power supply units are connected to each other through the current sharing bus. Each power supply unit provides a current sharing signal value to the current sharing bus, and provides an output current to a load. Each controller receives current sharing signal values provided from other power supply units and current signal values corresponding to the output currents. When determining that the current signal value is less than a reference current sharing signal value, the controller increases an output voltage of the power supply unit to increase the output current. Otherwise, the controller decreases the output voltage to decrease the output current so that so that the output currents of the power supply units are shared to supply power to the load.