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. 08, 2019
Filed:
Oct. 23, 2017
Dialog Semiconductor (Uk) Limited, London, GB;
Kevin Yi Cheng Chang, Phoenix, AZ (US);
James Doyle, Phoenix, AZ (US);
DIALOG SEMICONDUCTOR (UK) LIMITED, London, GB;
Abstract
In one or more embodiments, a method comprises comparing an output voltage for a multi-phase DC-DC switching power converter to a reference voltage to produce an error voltage. The method further comprises, for a first inductor, generating a first dual-ramp voltage signal having a first DC voltage level, and level-shifting the first dual-ramp voltage signal to form a second dual-ramp voltage signal having a second DC voltage level different from the first DC voltage level. Further, the method comprises switching on a first power switch coupled to the first inductor according to a duty cycle determined responsive to a comparison of the second dual-ramp voltage signal to the error voltage, where the level-shifting of the first dual-ramp voltage signal adjusts the duty cycle of the first power switch to balance a current in the first inductor with a current in a second inductor for the multi-phase DC-DC switching power converter.