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:
Dec. 10, 1996
Filed:
Dec. 22, 1994
Applicant:
Inventor:
Tomio Takayama, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 71 ; 363 65 ;
Abstract
A parallel control type DC--DC converter supplies an output voltage to a load based on voltages supplied from independent power sources. The DC--DC converter is provided with at least first and second converters powered by the independent power sources and commonly grounded and including a switching element, a control circuit driving the switching elements within the first and second converters by ON-pulses having the same width depending the output voltage, and a circuit coupling outputs of the first and second converters in parallel and producing the output voltage.