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:
Mar. 23, 2021
Filed:
May. 31, 2019
Applicant:
Dialog Semiconductor Inc., Campbell, CA (US);
Inventors:
Tao Li, Campbell, CA (US);
Pengju Kong, Campbell, CA (US);
Juyoung Yoon, Campbell, CA (US);
Qingqing Zong, Campbell, CA (US);
Assignee:
DIALOG SEMICONDUCTOR INC., Campbell, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33515 (2013.01); H02M 3/33523 (2013.01);
Abstract
A flyback converter is disclosed having a secondary side controller that generates an input current for an optocoupler diode by driving a variable resistor with a control voltage. The secondary side controller varies a variable resistance for the variable resistor to compensate for current transfer ratio gain variations for the optocoupler.