公开(公告)号：US11545891B2

公开(公告)日：2023-01-03

申请号：US17444668

申请日：2021-08-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chien-An Lai ,  Jyun-Jhe Jhang ,  Chien-Yao Liao ,  Ping-Sheng Wu ,  I Chen ,  Chang-Yuan Hsu

IPC: H02M1/42 ,  H02M5/458 ,  H02M3/156 ,  H02M3/158 ,  H02M1/00

Abstract: A power device includes a power factor corrector, an auxiliary capacitor, a switching device, an auxiliary boost circuit, a controller and a voltage conversion device. The switching device has a first end electrically connected to the output end of the power factor corrector, and a second end electrically connected to one end of the auxiliary capacitor. An output end of the auxiliary boost circuit is electrically connected to the output end of the power factor corrector, an input end of the auxiliary boost circuit is electrically connected to a middle end of the switching device, and a ground end of the auxiliary boost circuit is electrically connected to another end of the auxiliary capacitor. The controller is electrically connected to the switching device and the auxiliary boost circuit. The input end of the voltage conversion device is electrically connected to the output end of the power factor corrector.

公开(公告)号：US20220173653A1

公开(公告)日：2022-06-02

申请号：US17444668

申请日：2021-08-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chien-An LAI ,  Jyun-Jhe Jhang ,  Chien-Yao Liao ,  Ping-Sheng Wu ,  I Chen ,  Chang-Yuan Hsu

IPC: H02M1/42 ,  H02M5/458

Abstract: A power device includes a power factor corrector, an auxiliary capacitor, a switching device, an auxiliary boost circuit, a controller and a voltage conversion device. The switching device has a first end electrically connected to the output end of the power factor corrector, and a second end electrically connected to one end of the auxiliary capacitor. An output end of the auxiliary boost circuit is electrically connected to the output end of the power factor corrector, an input end of the auxiliary boost circuit is electrically connected to a middle end of the switching device, and a ground end of the auxiliary boost circuit is electrically connected to another end of the auxiliary capacitor. The controller is electrically connected to the switching device and the auxiliary boost circuit. The input end of the voltage conversion device is electrically connected to the output end of the power factor corrector.