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:
Dec. 23, 2014
Filed:
Jul. 09, 2013
Yu-ta Lin, New Taipei, TW;
Jian-rong Huang, Hsinchu, TW;
Yi-cheng Wan, Taoyuan, TW;
Chien-hui Wang, Hsinchu, TW;
Yuan-wen Hsiao, Taichung, TW;
Yu-Ta Lin, New Taipei, TW;
Jian-Rong Huang, Hsinchu, TW;
Yi-Cheng Wan, Taoyuan, TW;
Chien-Hui Wang, Hsinchu, TW;
Yuan-Wen Hsiao, Taichung, TW;
Richtek Technology Corporation, Chupei, Hsinchu, TW;
Abstract
The present invention provides a multi-phase switching regulator and a droop circuit for use in the multi-phase switching regulator. The multi-phase switching regulator generates pulse width modulation (PWM) signals according to an output voltage and a droop signal, to drive a plurality of switching sets to convert an input voltage to the output voltage. The droop circuit detects the sum of the currents generated by the plurality of switching sets and provides the droop signal which is related to the sum of the currents to the multi-phase switching regulator. The droop signal can be used for over current protection (OCP) or for the droop control.