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:
Jan. 21, 1997
Filed:
Nov. 22, 1994
Applicant:
Inventors:
Shigeru Honda, Kawasaki, JP;
Manabu Sasaki, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 18 ; 323284 ;
Abstract
The overcurrent protection circuit for a dc-to-dc converter which inputs an input voltage through a power input line, converts the voltage into another voltage to output as an output voltage to a load through a power output line. The overcurrent protection circuit outputs a first connection signal for a predetermined period from the time the input voltage is turned on; detects an overcurrent caused in the load and outputs a second connection signal from the time tile input voltage is turned on until the overcurrent is detected; and closes the power input line while receiving at least one of the first and second connection signals.