公开(公告)号：US20210126548A1

公开(公告)日：2021-04-29

申请号：US16944742

申请日：2020-07-31

Applicant: EPISTAR CORPORATION

Inventor： Sheng-Bo Wang ,  Chiao Fu ,  Chang-Hsieh Wu ,  Jai-Tai Kuo ,  Chao-Kai Chang ,  Yao-Zhong Liu ,  Yi-Ru Shen ,  Chen-Yu Wang

IPC: H02M7/217 ,  H02M1/08

Abstract: A voltage converter circuit, comprising: a bridge rectifier; a first transistor, having a first end, a second end and a third end; a second transistor, having a first end and a second end; wherein the first end of the first transistor and the first end of second transistor are electrically connected to bridge rectifier, and the second end of the first transistor is electrically connected to the first end of the second transistor; and a Zener diode, connected between the third end of the first transistor and the second end of the second transistor.

公开(公告)号：US11476772B2

公开(公告)日：2022-10-18

申请号：US16944742

申请日：2020-07-31

Applicant: EPISTAR CORPORATION

Inventor： Sheng-Bo Wang ,  Chiao Fu ,  Chang-Hsieh Wu ,  Jai-Tai Kuo ,  Chao-Kai Chang ,  Yao-Zhong Liu ,  Yi-Ru Shen ,  Chen-Yu Wang

IPC: H02M7/217 ,  H02M1/08

Abstract: A voltage converter circuit, comprising: a bridge rectifier; a first transistor, having a first end, a second end and a third end; a second transistor, having a first end and a second end; wherein the first end of the first transistor and the first end of second transistor are electrically connected to bridge rectifier, and the second end of the first transistor is electrically connected to the first end of the second transistor; and a Zener diode, connected between the third end of the first transistor and the second end of the second transistor.