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. 27, 2019
Filed:
Mar. 07, 2017
Infineon Technologies Austria Ag, Villach, AT;
Benjamim Tang, Rancho Palos Verdes, CA (US);
Richard Pierson, Newport Beach, CA (US);
Scott Southwell, Seal Beach, CA (US);
Tim Ng, Monterey Park, CA (US);
Yi-Yuan Liu, Redondo Beach, CA (US);
Brian Molloy, Milpitas, CA (US);
Kenneth Ostrom, Palos Verdes Estates, CA (US);
Amir Babazadeh, Laguna Hills, CA (US);
Infineon Technologies Austria AG, Villach, AT;
Abstract
According to an embodiment, a multiphase regulator includes a plurality of output phases each of which is operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. A controller is operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, monitor the phase currents delivered to the load by the output phases, determine if the monitored phase currents indicate any of the individual output phases, any of the individual inductors or the output capacitor are faulty even if the total current delivered to the load is within specified limits, synchronously switch the output phases which cause ripples in the phase currents, and detect if any of the phase currents fail to have a ripple current pattern that matches an expected ripple current pattern.