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 7795953 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 14, 2010

Filed:

Mar. 19, 2008
Applicants:

Ryu Ogiwara, Yokohama, JP;

Shinichiro Shiratake, Yokohama, JP;

Daisaburo Takashima, Yokohama, JP;

Inventors:

Ryu Ogiwara, Yokohama, JP;

Shinichiro Shiratake, Yokohama, JP;

Daisaburo Takashima, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to an aspect of the present invention, there is provided a voltage step-down circuit including: a first NMOS connected between an external and an internal power-supply voltages through a PMOS turned ON during an active state and turned OFF during a standby state; a second NMOS connected between the external and the internal power-supply voltages; and a current control circuit that sinks a current from the internal power-supply voltage to a ground level for a certain period of time after an operation state is switched from the active state to the standby state.


Find Patent Forward Citations

Ogiwara, Ryu. (2010). Voltage step-down circuit (U.S. Patent No. 7795953). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7795953

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