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:
Jul. 13, 2021
Filed:
Jun. 18, 2020
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Abstract
A fault detection method for a multi-phase converter is: sampling currents flowing through a plurality of switching circuits to generate a plurality of current sampling signals; generating a plurality of digital current signals based on a plurality of current sampling signals; generating a plurality of on-time adjustment signals based on differences between each of the plurality of digital current signals and a reference current signal; averaging the plurality of on-time adjustment signals to generate an average adjustment signal; subtracting each of the plurality of on-time adjustment signals from the average adjustment signal to generate corresponding plurality of adjustment error signals; comparing each of the plurality of adjustment error signals with a threshold signal to generate a plurality of fault signals; and adjusting control signals of the plurality of switching circuits based on the plurality of fault signals.