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.

Date of Patent:
Apr. 28, 2020

Filed:

May. 10, 2019
Applicant:

Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, ZheJiang Province, CN;

Inventors:

Huiqiang Chen, Hangzhou, CN;

Zhishuo Wang, Hangzhou, CN;

Jianxin Wang, Hangzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/00 (2006.01); H05B 33/08 (2020.01);
U.S. Cl.
CPC ...
H05B 33/0812 (2013.01); H05B 33/0851 (2013.01);
Abstract

An LED driver with a silicon-controlled dimmer, can include: a supplementary current generating circuit configured to generate a supplementary current to ensure that an input current of the LED driver meets conduction requirements of the silicon-controlled dimmer; and where the supplementary current is determined in accordance with a drive current flowing through an LED load and a holding current of the silicon-controlled dimmer.


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