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:
May. 04, 2010
Filed:
Jul. 20, 2007
Motoki Komiya, Kobe, JP;
Motoki Komiya, Kobe, JP;
Fujitsu Ten Limited, Kobe-shi, JP;
Abstract
The switching regulator has a first switching regulator circuit for outputting a variable power according to a pulse width modulation pulse to be supplied; a second switching regulator circuit for outputting or stopping a constant power according to a control signal to be supplied; and a control circuit for controlling the first switching regulator circuit and the second switching regulator circuits. The control circuit increases the variable power of the first switching regulator circuit by an amount greater than a regular amount if a detected voltage changes from a status higher than the target voltage to a status lower than the target voltage, and decreases the variable power of the first switching regulator circuit by an amount greater than the regular amount if the detected voltage changes from a status lower than the target voltage to a status higher than the target voltage.