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. 14, 2017
Filed:
May. 14, 2013
Applicant:
Atmel Corporation, San Jose, CA (US);
Inventor:
Jeff Kotowski, Nevada City, CA (US);
Assignee:
Atmel Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/217 (2006.01); H05B 33/08 (2006.01); H02M 3/24 (2006.01); H02M 1/42 (2007.01); H02M 3/158 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H02M 1/4208 (2013.01); H02M 3/158 (2013.01); H02M 3/33538 (2013.01); H02M 1/4266 (2013.01); Y02B 70/123 (2013.01);
Abstract
A power converter is disclosed that includes an active valley fill (AVF) capacitor that is actively switched to provide current to a load during a portion of an alternating current (AC) input cycle. The current supplied to the load includes some current supplied by the AC input and some current supplied by the AVF capacitor. Circuitry is configured to regulate the amount of current flowing through the load, including controlling the amount of current supplied by the AVF capacitor. The duty cycle on the AVF capacitor can be adjusted to shape the AC input current waveform.