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:
Jan. 22, 2013
Filed:
Aug. 04, 2009
Chung-sheng Cheng, Jhubei, TW;
Chung-shu LI, Yonghe, TW;
Chia-jung Lee, Hsinchu, TW;
Jian-rong Huang, Hsinchu, TW;
Chung-Sheng Cheng, Jhubei, TW;
Chung-Shu Li, Yonghe, TW;
Chia-Jung Lee, Hsinchu, TW;
Jian-Rong Huang, Hsinchu, TW;
Richtek Technology Corp., Hsinchu, TW;
Abstract
A multi-phase power converter with constant on-time control includes a plurality of channels to convert an input voltage into an output voltage, and each of the channels is driven by a control signal. When all channel currents of the channels are balanced, each of the control signals remains a constant on-time. When the channel currents are imbalanced, the on-times of the control signals are modulated according to the difference between each channel current and a target value for current balance between the channels.