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. 17, 2015
Filed:
Sep. 11, 2012
Ke-horng Chen, Hsinchu, TW;
Yueh-lung Kuo, New Taipei, TW;
Chih-heng Su, Hsinchu, TW;
Yi-ping Su, New Taipei, TW;
Yu-ping Huang, Changhua County, TW;
Yu-huei Lee, New Taipei, TW;
Ke-Horng Chen, Hsinchu, TW;
Yueh-Lung Kuo, New Taipei, TW;
Chih-Heng Su, Hsinchu, TW;
Yi-Ping Su, New Taipei, TW;
Yu-Ping Huang, Changhua County, TW;
Yu-Huei Lee, New Taipei, TW;
Anpec Electronics Corporation, Hsinchu Science Park, Hsin-Chu, TW;
Abstract
The present invention discloses a current balance circuit for a multiphase DC-DC converter. The current balance circuit comprises a current error calculation circuit, for generating a plurality of current balance signals indicating imbalance levels of a plurality of inductor currents of a plurality of channels of the multiphase DC-DC converter according to a plurality of current sensing signals of the plurality of channels, a time shift circuit, for adjusting pulse widths of a plurality of clock signals according to the plurality of current balance signals, and a ramp generator, for deciding shift levels of a plurality of ramp signals according to the plurality of clock signals.