公开(公告)号：US12132414B2

公开(公告)日：2024-10-29

申请号：US17310962

申请日：2020-02-20

Applicant: METAWATER Co., Ltd.

Inventor： Kazuya Takahashi ,  Souichirou Yamamoto ,  Kyohei Yamamoto ,  Yoshitaka Yonetani

IPC: H02M7/48 ,  H02M7/539 ,  C01B13/11 ,  H02M1/00

CPC classification number: H02M7/4815 ,  H02M7/539 ,  C01B13/115 ,  H02M1/0048 ,  H02M7/4818

Abstract: A power supply that supplies power to a capacitive load comprises: a converter; an inverter; a resonant transformer; a detector configured to detect output frequency or output current and output voltage; and a controller configured to control the inverter, wherein the controller is configured to: calculate output power; adjust the output frequency within a predetermined frequency search range, adjust the output voltage within a predetermined voltage search range, and specify, as a frequency target value, a minimum value of the output frequency with which the output power reaches predetermined output power; and control the inverter so that the output frequency will be the frequency target value, adjust the output voltage within the predetermined voltage search range, and specify, as a voltage target value, a value of the output voltage with which the output power is target output power.