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:
Sep. 24, 2002
Filed:
Feb. 01, 2001
Syuichi Saito, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A voltage conversion circuit has an improved power efficiency and a lower power consumption is described. The voltage conversion circuit includes a plurality of voltage conversion cells, each of which includes a capacitor element. A switch circuit is connected to the plurality of voltage conversion cells to selectively switch between parallel connection of a plurality of voltage conversion cells and serial connection of a plurality of voltage conversion cells. A control circuit is connected to the switch circuit to control the switch circuit to selectively perform a first voltage conversion of an input voltage by the plurality of parallel-connected voltage conversion cells and a second voltage conversion of the input voltage by the plurality of series-connected voltage conversion cells.