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:
Aug. 06, 2013
Filed:
Feb. 26, 2013
Richtek Technology Corporation, Zhubei, TW;
Richtek Technology Corporation, Zhubei, Hsinchu County, TW;
Abstract
A multiphase DC-DC converting circuit for providing power to a load is disclosed, having power stage circuits, channel current converting circuits, current detecting circuits, a transconductance amplifier circuit, a comparator circuit, and a channel current balance circuit. The current detecting circuits detect current signals of current channels, and the transconductance amplifier circuit and the comparator circuit are coupled with the current detecting circuits to receive the voltage difference across a resistor, and to generate a total current detecting signal provided to the load. The channel current converting circuit is coupled with the current detecting circuits to generate channel current detecting signals. The channel current balance circuit is coupled with the comparator circuit, the transconductance amplifier circuit and the channel current converting circuit to balance the current signals of the current channels.