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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.:

US 12078301 B1

PDFFull Text
Date of Patent:
Sep. 03, 2024

Filed:

Sep. 11, 2023

Led lamp and power source module thereof

Applicant:

Jiaxing Super Lighting Electric Appliance Co., Ltd, Jiaxing, CN;

Inventors:

Aiming Xiong, Jiaxing, CN;

Xintong Liu, Shanghai, CN;

Junren Chen, Jiaxing, CN;

Hechen Hu, Jiaxing, CN;

Hao Zhang, Jiaxing, CN;

Assignee:

Jiaxing Super Lighting Electric Appliance Co., Ltd., Zhejiang, CN;

Attorney:

Muir Patent Law, PLLC

Primary Examiner:

Anh Q Tran

Int. Cl.
CPC ...
F21K 9/278 (2016.01); F21K 9/272 (2016.01); F21K 9/275 (2016.01); F21V 3/06 (2018.01); F21V 15/015 (2006.01); F21V 23/00 (2015.01); F21V 23/02 (2006.01); F21V 25/02 (2006.01); F21V 25/04 (2006.01); F21V 29/70 (2015.01); H05B 45/00 (2022.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 45/37 (2020.01); H05B 45/50 (2022.01); H05B 45/59 (2022.01); H05K 1/00 (2006.01); F21V 29/83 (2015.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01); H05K 1/14 (2006.01);
U.S. Cl.
CPC ...
F21K 9/278 (2016.08); F21K 9/272 (2016.08); F21K 9/275 (2016.08); F21V 3/061 (2018.02); F21V 15/015 (2013.01); F21V 23/003 (2013.01); F21V 23/005 (2013.01); F21V 23/023 (2013.01); F21V 25/02 (2013.01); F21V 25/04 (2013.01); F21V 29/70 (2015.01); H05B 45/00 (2020.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 45/37 (2020.01); H05B 45/50 (2020.01); H05B 45/59 (2022.01); H05K 1/00 (2013.01); F21V 23/02 (2013.01); F21V 29/83 (2015.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08); H05K 1/147 (2013.01); H05K 2201/10106 (2013.01); Y02B 20/30 (2013.01);
Abstract

An LED lamp and a power supply module thereof are provided. The power supply module includes a driving circuit, a OVP circuit, and an impedance detection circuit. The OVP circuit is configured to determine whether an OVP condition is detected by sampling the driving signal, and the impedance detection circuit is configured to determine whether a user touching state is detected. When either the OVP condition or the user touching state is detected, the power switch of the driving circuit will be controlled to limit the amount of a current flowing through the power switch. In addition, the impedance detection circuit could detect the user touching state by comparing signals with a defined level sampled during each pulse, thus enhancing the detection accuracy.

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