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:
May. 10, 2016
Filed:
Nov. 01, 2013
Intersil Americas Llc, Milpitas, CA (US);
Vinod Lalithambika, Cambridge, GB;
Claudio Collura, Hertford, GB;
INTERSIL AMERICAS LLC, Milpitas, CA (US);
Abstract
A controller, for use with an SMPS DC-DC converter, includes a PWM/PFM generator and a switch driver. The PWM/PFM generator simultaneously generates CTRLand CTRLsignals in dependence on a CTRL signal. The switch driver generates a drive signal in dependence on both the CTRLand CTRLsignals. The drive signal is used to control a power switch of the DC-DC converter. The CTRL signal is generated in dependence on a feedback signal indicative of an output voltage or current of the DC-DC converter. Regardless of the mode of the DC-DC converter, the CTRLsignal is used to control a peak current in an inductor of the DC-DC converter, and the CTRLsignal is used to control a switching frequency of the power switch. In certain embodiments, both the CTRLand CTRLsignals are varied in dependence on the feedback signal when the DC-DC converter is in a PWM-PFM mode.