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:
Feb. 21, 2006
Filed:
Mar. 07, 2003
Takeshi Uematsu, Chuo-ku, JP;
Takakazu Imai, Chuo-ku, JP;
Hiroshi Kawasaki, Chuo-ku, JP;
TDK Corporation, Tokyo, JP;
Abstract
This invention provides a switching power supply control circuit based on the parallel operation scheme that suppresses ripples in the output voltage. The control circuit comprises switching circuit blocksandconnected in parallel, output reactorsandconnected in parallel corresponding to the switching circuit blocksand, and a control circuitthat controls the operation of the switching circuit blocksand. The control circuitcomprises: means of calculating the difference between the reactor currents Iand Iflowing through the output reactorsandand the average value of the reactor currents, means of generating control voltages Vand Vcorresponding to the switching circuit blocksandbased on the calculated differences and the output voltage Vcomparatorsandthat compare the control voltages Vand Vagainst the reference voltage Vand latch circuitsandthat latch the outputs of the comparatorsandin response to the clock signal CLK.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile