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:
Mar. 26, 1996
Filed:
Apr. 14, 1994
Applicant:
Inventor:
Koji Arakawa, Tsurugashima, JP;
Assignee:
Toko, Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 20 ; 363 37 ; 323207 ;
Abstract
An AC-DC converter is disclosed which is so designed as to realize an improved power factor and thereby minimize generation of voltage distortion and higher harmonies in power supply line, without making the circuit arrangement complex and bulky. A step-down DC-DC converter is connected to an output side rectifier, and the arrangement is made such that the output current of the rectifier is permitted to flow only during a time period when the output voltage of the rectifier is higher than the voltage at an output capacitor of the DC-DC converter.