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:
Jul. 20, 2021
Filed:
Mar. 18, 2019
Applicant:
Renesas Electronics America Inc., Milpitas, CA (US);
Inventors:
Travis Guthrie, Austin, TX (US);
Narendra Kayathi, Austin, TX (US);
Assignee:
Renesas Electronics America Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/257 (2006.01); H03F 3/217 (2006.01); G01R 19/00 (2006.01); H02M 3/157 (2006.01); G01R 19/25 (2006.01);
U.S. Cl.
CPC ...
G01R 19/257 (2013.01); G01R 19/0023 (2013.01); G01R 19/0038 (2013.01); G01R 19/0092 (2013.01); G01R 19/2506 (2013.01); H02M 3/157 (2013.01); H03F 3/2175 (2013.01);
Abstract
According to certain aspects, a predictive tracking scheme is provided for sampling inductor currents in a digital PWM controller used for high-bandwidth voltage regulation. In one or more embodiments, the predicted current derived from the PWM waveform is fed forward to the current sense ADC in order to reduce the required conversion range. These and other embodiments only need to convert a few of the LSB of the ADC in order to correct the largest error expected in the synthesizer.