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:
Aug. 21, 2018

Filed:

Apr. 24, 2017
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Masashi Motomura, Osaka, JP;

Hirofumi Konishi, Osaka, JP;

Kenichi Fukuda, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); F21S 8/04 (2006.01); F21V 3/00 (2015.01); F21V 21/34 (2006.01); F21V 23/06 (2006.01); H02M 3/158 (2006.01); H02M 7/04 (2006.01); H05B 37/02 (2006.01); F21Y 115/10 (2016.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); F21S 8/046 (2013.01); F21V 3/00 (2013.01); F21V 21/34 (2013.01); F21V 23/06 (2013.01); H02M 3/158 (2013.01); H02M 3/1588 (2013.01); H02M 7/04 (2013.01); H05B 33/0845 (2013.01); H05B 37/02 (2013.01); F21Y 2115/10 (2016.08); H02M 2001/0048 (2013.01);
Abstract

A signal transmitting device includes an input unit, an output unit, and a step-down circuit. The input unit is configured to receive an input voltage. The output unit is configured to output an output voltage. The step-down circuit is configured to controllably adjust the output voltage by stepping down the input voltage. The step-down circuit includes first and second capacitors, a switch circuit, an inductor, first and second diodes, and a control circuit. The switch circuit includes a series circuit of first and second switches. The control circuit is configured to control the first and second switches to change a voltage value of the output voltage in order to transmit transmission data from the output unit.


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