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 6759766 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 06, 2004

Filed:

Dec. 10, 2002
Applicant:
Inventors:

Masashi Hiratsuka, Kanagawa, JP;

Kunihiro Takahashi, Kanagawa, JP;

Yoshinao Kondoh, Kanagawa, JP;

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

A power supply apparatus includes a boost circuit and a switch circuit. The boost circuit has rectifying elements and charge storage elements associated with the rectifying elements, and outputs a boosted voltage by sequentially cumulating charges in the charge storage elements in accordance with an AC input signal. The switch circuit switches a polarity of boosting in cumulating the charges in the charge storage elements. The boost circuit includes a circuit part that supplies charges to be sequentially cumulated in positive and negative directions in accordance with the AC input signal.


Find Patent Forward Citations

Hiratsuka, Masashi. (2004). Power supply apparatus and image forming apparatus using the same (U.S. Patent No. 6759766). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6759766

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