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:
Feb. 22, 2022
Filed:
May. 10, 2019
Dell Products L.p., Round Rock, TX (US);
Constantin Darius Livescu, Austin, TX (US);
Mark A. Muccini, Georgetown, TX (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A system may include a power train comprising a rectifier and power factor correction stage configured to receive an alternating current (AC) input voltage waveform and convert the AC input voltage waveform into a regulated direct current (DC) voltage on a bulk capacitor configured to store electrical charge and a controller configured to control the rectifier and power factor correction stage to perform power factor correction between the AC input voltage waveform and an AC input current waveform related to the AC input voltage waveform. The controller may implement a voltage regulation loop configured to regulate the regulated DC voltage on the bulk capacitor to a desired constant average value based on a combination of a DC current signal associated with the power train and a voltage loop error signal based on the regulated DC voltage and a current loop regulating the shape of the AC input current waveform to a sinusoidal value in phase with the AC input voltage waveform.