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.:
Date of Patent:
Nov. 06, 2001
Filed:
May. 11, 1999
Applicant:
Inventor:
Yoshio Higuchi, Osaka, JP;
Assignee:
Funai Electric Co. Ltd., Daito, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 ; H02M 3/24 ;
U.S. Cl.
CPC ...
H02M 3/335 ; H02M 3/24 ;
Abstract
A switching power source in which the voltage error of a secondary side DC output is fed back to a switching circuit through an insulating element, thereby to stabilize the output voltage. In the switching power source, irrespective of the voltage of the secondary side DC output, a pulse of the level with which an error detecting circuit determines that the voltage of the secondary side DC output has been increased is applied to the error detecting circuit, whereby the switching operation of the switching circuit is changed into an intermittent operation corresponding to the pulse.