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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 10683970 B1

PDFFull Text
Date of Patent:
Jun. 16, 2020

Filed:

Aug. 21, 2019

Led tube lamp for operating in different modes

Applicant:

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

Inventors:

Aiming Xiong, Jiaxing, CN;

Xintong Liu, Shanghai, CN;

Xiaojia Wu, Jinhua, CN;

Assignee:

JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD, Jiaxing, Zhejiang, CN;

Attorney:

Simon Kuang Lu

Primary Examiner:

Anh Q Tran

Int. Cl.
CPC ...
G05F 1/00 (2006.01); H05B 37/02 (2006.01); H05B 39/04 (2006.01); H05B 41/36 (2006.01); F21K 9/278 (2016.01); F21V 17/10 (2006.01); F21V 23/00 (2015.01); F21V 23/02 (2006.01); F21V 29/83 (2015.01); F21K 9/275 (2016.01); B23K 3/047 (2006.01); B23K 1/00 (2006.01); F21V 15/015 (2006.01); F21V 3/06 (2018.01); F21V 3/10 (2018.01); H05B 45/37 (2020.01); H05B 45/50 (2020.01); C03C 21/00 (2006.01); F21V 29/70 (2015.01); F21Y 115/10 (2016.01); B23K 101/42 (2006.01);
U.S. Cl.
CPC ...
F21K 9/278 (2016.08); B23K 1/0016 (2013.01); B23K 3/047 (2013.01); F21K 9/275 (2016.08); F21V 3/061 (2018.02); F21V 3/10 (2018.02); F21V 15/015 (2013.01); F21V 17/101 (2013.01); F21V 23/006 (2013.01); F21V 23/009 (2013.01); F21V 23/02 (2013.01); F21V 29/83 (2015.01); H05B 45/37 (2020.01); H05B 45/50 (2020.01); B23K 2101/42 (2018.08); C03C 21/002 (2013.01); F21V 29/70 (2015.01); F21Y 2115/10 (2016.08); Y02B 20/341 (2013.01);
Abstract

An LED tube lamp comprises: an LED module for emitting light; a rectifying circuit for rectifying an external driving signal to produce a rectified signal; and a mode determination circuit for determining to perform a first mode or a second mode of lighting according to the rectified signal; wherein the mode determination circuit comprises two voltage dividers for producing a first fraction voltage and a second fraction voltage of the rectified signal, and a control circuit coupled to the two voltage dividers and configured for receiving the first fraction voltage and for receiving the second fraction voltage. When the first fraction voltage signal is in a first voltage range, the mode determination circuit determines to perform the first mode of lighting; and when the second fraction voltage is in a second voltage range, the mode determination circuit determines to perform the second mode of lighting.

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