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:
Mar. 24, 2026
Filed:
Oct. 27, 2023
Dell Products L.p., Round Rock, TX (US);
Danny Sc Wang, New Taipei, TW;
Rita Joy Fernandez Miranda, Taipei, TW;
Alex Tsai, Taipei, TW;
Eva Chao, New Taipei, TW;
Dennis Alinea Martin, New Taipei, TW;
Dell Products L.P., Round Rock, TX (US);
Abstract
In one or more embodiments, a PSU comprises a bridgeless PFC circuit with a hold-up time extension. If a voltage drop is detected, a relay switches operation to a first boost converter action to store energy in a PFC choke. If voltage remains low, the PFC choke may transfer energy to a bulk capacitor, increasing the amount of time an information handling system can operate before a shut-down procedure needs to start. If power returns, selected switches are turned on in an order such that an inrush current does not damage components in the PSU.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile