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:
Apr. 18, 2023

Filed:

Feb. 24, 2021
Applicants:

Seiko Holdings Kabushiki Kaisha (Trading As Seiko Holdings Corporation), Tokyo, JP;

Ablic Inc., Tokyo, JP;

Inventors:

Yoshifumi Yoshida, Chiba, JP;

Noboru Kawai, Chiba, JP;

Fumiyasu Utsunomiya, Tokyo, JP;

Assignees:

SEIKO GROUP CORPORATION, Tokyo, JP;

ABLIC INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H04B 1/04 (2006.01); H02M 1/088 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/088 (2013.01); H04B 1/04 (2013.01);
Abstract

A convenient electronic circuit in which a switch is able to be switched through electric power obtained using weak radio waves is provided. An electronic circuit includes a switch which is connected between a power supply configured to output direct current (DC) electric power and a load driven through DC electric power supplied from the power supply and which switches a connection state between the power supply and the load from a non-conduction state to a conduction state; a power conversion circuit which includes a power input terminal to which electric power obtained through radio waves received by an antenna is input and a DC power output terminal configured to output DC electric power and which converts electric power input to the power input terminal into DC electric power and outputs the converted DC electric power from the DC power output terminal; and a control circuit configured to control a connection state of the switch to be in a conduction state when the power conversion circuit outputs DC electric power. The power conversion circuit includes at least a first capacitor, a first diode, a second capacitor, and a second diode.


Find Patent Forward Citations

Loading…