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 9401615 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 26, 2016

Filed:

Sep. 17, 2014
Applicant:

Seiko Instruments Inc., Chiba-shi, Chiba, JP;

Inventors:

Satoshi Abe, Chiba, JP;

Atsushi Sakurai, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0063 (2013.01); H02J 7/0031 (2013.01); H02J 7/007 (2013.01); H02J 2007/004 (2013.01); H02J 2007/0037 (2013.01); H03K 2217/0054 (2013.01);
Abstract

A charging and discharging control circuit includes a switching circuit that controls the gate of a bidirectional conduction type field effect transistor; a first transistor of which the drain is connected to the drain of the bidirectional conduction type field effect transistor, the gate is connected to the source of the bidirectional conduction type field effect transistor, and the source and the back gate are connected to a first terminal of the switching circuit; and a second transistor of which the drain is connected to the source of the bidirectional conduction type field effect transistor, the gate is connected to the drain of the bidirectional conduction type field effect transistor, and the source and the back gate are connected to the first terminal of the switching circuit. The back gate of the bidirectional conduction type field effect transistor is connected to the first terminal of the switching circuit.


Find Patent Forward Citations

Abe, Satoshi. (2016). Charging and discharging control circuit and battery device (U.S. Patent No. 9401615). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9401615

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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