公开(公告)号：US20240429825A1

公开(公告)日：2024-12-26

申请号：US18822907

申请日：2024-09-03

Applicant: DENSO CORPORATION

Inventor： Takeshi HIRANO ,  Hitoshi OZAKI ,  Akira TOKUMASU ,  Atsuki ASANO

IPC: H02M3/335

Abstract: An isolated power supply apparatus includes transformers, input sides of which are connected with a DC power source and output sides of which are connected with power supply targets corresponding to the transformers. At least two of the transformers have respective feedback windings. The apparatus further includes: a control switch configured to allow supply of electric power from the DC power source to the input sides of the transformers by being turned on and interrupt the supply of electric power from the DC power source to the input sides of the transformers by being turned off; an acquisition unit configured to acquire a control value based on voltages generated in the feedback windings; and a control unit configured to turn on and off the control switch so as to feedback-control the control value to a target value and thereby control voltages on the output sides of the transformers.