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. 07, 2020

Filed:

Apr. 18, 2019
Applicant:

Eaton Intelligent Power Limited, Dublin, IE;

Inventors:

Kevin Zhong, Shanghai, CN;

Hoon Lee, Suwanee, GA (US);

Saivaraprasad Murahari, Peachtree City, GA (US);

Lily Du, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2020.01); H02M 1/34 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0845 (2013.01); H02M 1/34 (2013.01); H02M 2001/0048 (2013.01);
Abstract

A dimmer includes a processing unit structured to generate a dimming control signal, wherein in the on state the dimming control signal has a constant voltage with a low pulse a predetermined time after each zero-crossing in power flowing through the hot conductor and in the off state the dimming control signal has a constant voltage, a load control circuit structured to electrically connect between the hot conductor and the load conductor and to selectively electrically connect the hot conductor to the load conductor based on the dimming control signal, and a snubber control circuit including a snubber structured to electrically couple between the hot conductor and the load conductor, wherein the snubber control circuit is structured to activate the snubber when the dimming control signal has the on state and to deactivate the snubber when the dimming control signal has the off state.


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