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 6678173 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 13, 2004

Filed:

Feb. 15, 2002
Applicant:
Inventor:

Shin Nakagawa, Tokyo, JP;

Assignee:

Fidelix Y.K., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 ; G05F 1/44 ;
U.S. Cl.
CPC ...
H02M 1/12 ; G05F 1/44 ;
Abstract

A power supply apparatus having an AC power supply, a transformer, a switching element and a control circuit for controlling an operation of the switching element: where an electrical current is supplied to the primary side of the transformer intermittently when a main unit of an electrical appliance to which the power supply apparatus is applied is in a standby mode so that unnecessary power consumption is reduced. Further, a capacitance is provided between the AC power supply and the control circuit instead of the conventional initializing resistance and the control circuit is driven using an electrical current going through a reactance component of the capacitor, so that the energy loss is not caused any more by the initializing resistance.


Find Patent Forward Citations

Nakagawa, Shin. (2004). Power supply apparatus for the reduction of power consumption (U.S. Patent No. 6678173). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6678173

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

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