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. 19, 2016
Filed:
Jul. 12, 2012
Amir Babazadeh, Irvine, CA (US);
Benjamim Tang, Rancho Palos Verdes, CA (US);
Giuseppe Bernacchia, Redondo Beach, CA (US);
Kenneth Ostrom, Palos Verdes Estates, CA (US);
Amir Babazadeh, Irvine, CA (US);
Benjamim Tang, Rancho Palos Verdes, CA (US);
Giuseppe Bernacchia, Redondo Beach, CA (US);
Kenneth Ostrom, Palos Verdes Estates, CA (US);
Infineon Technologies Austria AG, Villach, AT;
Abstract
A multiphase switching regulator includes a power stage with at least a first phase and a second phase for supplying power to a load through inductors coupling the phases to the load. The multiphase switching regulator is operated by switching the first phase at a higher switching frequency than the second phase via pulse width modulation (PWM) signals provided to the phases. A phase-specific target current is generated for each phase at the switching frequency for that phase based on the difference between an output voltage of the power stage and a reference voltage. The current in the inductors coupling the phases to the load is sensed, and a duty cycle of the PWM signal provided to each phase is adjusted based on the phase-specific target current and sensed inductor current for that phase.