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:
Jul. 01, 2025

Filed:

May. 17, 2023
Applicant:

Xiamen Pvtech Co., Ltd., Fujian, CN;

Inventors:

Fuxing Lu, Fujian, CN;

Rongtu Liu, Fujian, CN;

Wangan Luo, Fujian, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/14 (2020.01); H05B 45/325 (2020.01); H05B 45/345 (2020.01); H05B 45/36 (2020.01);
U.S. Cl.
CPC ...
H05B 45/14 (2020.01); H05B 45/325 (2020.01); H05B 45/345 (2020.01); H05B 45/36 (2020.01);
Abstract

A dimming system includes an AC source connector, a lighting device and a wall switch. The lighting device includes a rectifying circuit, a constant current circuit, a control circuit and a light source. The input end of the rectifying circuit is connected to the output end of the AC source connector. The output end of the rectifying circuit is connected to the constant current circuit. The control circuit is connected to the rectifying circuit and the constant current circuit. The constant current circuit is connected to the light source. The wall switch includes a measuring circuit. An external power source is connected to the input end of the AC source connector via the wall switch. The control circuit keeps detecting the measured value of the measuring circuit and generates a dimming signal according to the number of the times of detecting the measured value during a predetermined time period.


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