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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 10826289 B1

PDFFull Text
Date of Patent:
Nov. 03, 2020

Filed:

Apr. 17, 2020

Wireless power supply device

Applicant:

Lapis Semiconductor Co., Ltd., Yokohama, JP;

Inventor:

Takashi Taya, Yokohama, JP;

Assignee:

LAPIS Semiconductor Co., Ltd., Yokohama, JP;

Attorney:

JCIPRNET

Primary Examiner:

Pablo N Tran

Int. Cl.
CPC ...
G06F 1/00 (2006.01); H02H 9/04 (2006.01); H02J 7/02 (2016.01); H02J 7/00 (2006.01); H02J 50/12 (2016.01); H02H 1/00 (2006.01); G05F 1/575 (2006.01); H02J 50/60 (2016.01); H02M 7/06 (2006.01); H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02J 50/80 (2016.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01); H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
H02H 9/04 (2013.01); G05F 1/575 (2013.01); H02H 1/0007 (2013.01); H02J 50/12 (2016.02); H02J 50/60 (2016.02); H02J 50/80 (2016.02); H02M 1/32 (2013.01); H02M 3/337 (2013.01); H02M 3/33523 (2013.01); H02M 7/06 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0058 (2013.01); H02M 2001/0064 (2013.01); H04B 5/0037 (2013.01);
Abstract

The disclosure provides a wireless power supply device, which includes: a power transmission coil; a first driving unit that alternatively performs an operation of transmitting a first driving current to one end of the power transmission coil and an operation of drawing a second driving current away from one end of the power transmission coil; a second driving unit that alternatively performs an operation of transmitting the second driving current to the other end of the power transmission coil and an operation of drawing the first driving current away from the other end of the power transmission coil; a current detection unit that detects amounts of the transmitted first and second driving current to generate a first signal, and detects an amount of the drawn second driving current to generate a second signal; and a control unit that determines an operation state based on the first and second signal.

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