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 8339819 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 25, 2012

Filed:

Feb. 01, 2010
Applicant:

Kiyoshi Miyazaki, Kanagawa, JP;

Inventor:

Kiyoshi Miyazaki, Kanagawa, JP;

Assignee:

Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A booster circuit has: a charge pump configured to perform a booster operation that boosts a voltage supplied from an external power source and outputs the boosted voltage as an output voltage through an output capacitor; and a feedback circuit section configured to control the booster operation depending on the output voltage. A mode of the booster operation includes: a charge mode that charges the output capacitor with the voltage supplied from the external power source; and a discharge mode that discharges the output capacitor. The mode of the booster operation is switched between the charge mode and the discharge mode depending on the output voltage. The feedback circuit section has a booster operation control section that secures a period during which the mode is not switched between the charge mode and the discharge mode in accordance with an external synchronizing signal.


Find Patent Forward Citations

Miyazaki, Kiyoshi. (2012). Booster circuit and display device (U.S. Patent No. 8339819). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8339819

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

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