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:
Nov. 28, 2023
Filed:
Mar. 23, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Chee Kiong Fong, Saratoga, CA (US);
Michael Roy Volkman, Seattle, WA (US);
Geoffrey Jason Shew, Redmond, WA (US);
Suet Fong Tin, Redmond, WA (US);
Marshall T Depue, Redmond, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A power supply includes a power factor correction (PFC) circuit, a PFC bypass circuit, and a decision circuit. The PFC circuit is configured to receive an input current from a power source and, when enabled, reduce current harmonics in the input current by shaping an input sinusoidal current waveform to match a phase and shape of a sinusoidal input voltage waveform. The PFC bypass circuit is configured to bypass the PFC circuit when the PFC circuit is disabled. The decision circuit includes a detection circuit configured to detect an output load of the power supply and is configured to output a PFC enable command based at least in part on the detected output load being greater than or equal to a threshold value and a determination that an input voltage of the power source is greater than or equal to a threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile