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:
Feb. 15, 2022
Filed:
Apr. 13, 2020
Applicant:
Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, CN;
Inventor:
Kaiwei Yao, Sunnyvale, CA (US);
Assignee:
Silergy Semiconductor Technology (Hangzhou) LTD, Hangzhou, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1588 (2013.01); H02M 1/0009 (2021.05); H02M 3/158 (2013.01);
Abstract
A current control circuit for a power converter can include: a sense transistor coupled to a power transistor to be sensed; and a control circuit configured to control a voltage at a power terminal of the sense transistor in order to mirror a current flowing through the power transistor, to control the sense transistor to generate a sense current, and to generate a control signal for controlling operation states of the power transistor in accordance with the sense current and a reference current.