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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 10823341 B1

PDFFull Text
Date of Patent:
Nov. 03, 2020

Filed:

Aug. 29, 2019

Mode switching circuit for changing a signal path in an led tube lamp

Applicant:

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

Inventors:

Aiming Xiong, Jiaxing, CN;

Xintong Liu, Shanghai, CN;

Assignee:

JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD, Jiaxing, 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 20/30 (2013.01);
Abstract

A mode switching circuit is configured to change a signal path in a light-emitting diode (LED) tube lamp and comprises: at least one switch, configured to receive a filtered signal as a driving signal to drive an LED module in the LED tube lamp to emit light, and when a frequency of an external driving signal received by the LED tube lamp is higher than a mode switching frequency, output the driving signal to the LED module. The LED tube lamp comprises an auxiliary power module coupled to provide auxiliary power for the LED module to emit light; and the mode switching circuit is on a printed circuit board and is electrically connected to the LED module on a bendable circuit sheet in the LED tube lamp, wherein the bendable circuit sheet is disposed below the printed circuit board to be electrically connected to the printed circuit board by soldering.

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