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. 04, 2021
Filed:
Mar. 21, 2019
Chengdu Monolithic Power Systems Co. Ltd., Chengdu, CN;
Suhua Luo, Hangzhou, CN;
Lijie Jiang, Hangzhou, CN;
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Abstract
A power supply has a reference regulation circuit and a voltage regulator. The reference regulation circuit receives a VID code and a slew rate command from a processor and regulates a reference voltage based on the VID code and the slew rate command. The voltage regulator converts an input voltage to an output voltage based on the reference voltage. The circuit has a Σ-Δ modulation unit to generate a count duration signal based on a target count signal, wherein the target count signal is generated by dividing a voltage regulation step by the slew rate command, both the target count signal and the count duration signal are digital signals, the target count signal represents a real number having an integer part and a decimal part, the count duration signal represents an integer number, the circuit further regulates the reference voltage based on the count duration signal and the VID code.