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:
Jul. 04, 2006
Filed:
Mar. 16, 2004
Takakazu Imai, Tokyo, JP;
Takeshi Uematsu, Tokyo, JP;
Hiroshi Kawasaki, Tokyo, JP;
Koichiro Miura, Tokyo, JP;
Ken Matsuura, Tokyo, JP;
Takakazu Imai, Tokyo, JP;
Takeshi Uematsu, Tokyo, JP;
Hiroshi Kawasaki, Tokyo, JP;
Koichiro Miura, Tokyo, JP;
Ken Matsuura, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
An output voltage of a switching power supply is regulated to a target value. When the target value of the output voltage is altered, the reference value is changed monotonously and linearly a plurality of times at a plurality of gradients to the altered target value. An input voltage of the power supply is switched in response to a switching pulse with the duty ratio calculated according to a difference between the reference value and the output voltage.