The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2022
Filed:
May. 11, 2020
Alpha and Omega Semiconductor International Lp, Sunnyvale, CA (US);
Guan-Yu Lin, Taipei, TW;
Yu-Ming Chen, Hsinchu, TW;
Tien-Chi Lin, New Taipei, TW;
Tin-Wei Chen, Taipei, TW;
Hsiang-Chung Chang, Zhubei, TW;
Yueh-Ping Yu, Zhubei, TW;
ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP, Sunnyvale, CA (US);
Abstract
A flyback converter includes a transformer, a sensing impedance, a switch and a control circuit. The sensing impedance is coupled between the transformer and an output terminal of the flyback converter. The switch is coupled to the transformer. The transformer is charged when the switch activates. The transformer is discharged when the switch deactivates. The control circuit is arranged to detect if the sensing impedance is bypassed, and further arranged to adjust an operating frequency of the switch when the sensing impedance is bypassed.