US 12,244,224 B2
Nonlinear, discrete time control of power factor correction power converter
Anders Lind, San Juan Capistrano, CA (US)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Apr. 25, 2024, as Appl. No. 18/645,718.
Application 18/645,718 is a continuation of application No. 17/524,030, filed on Nov. 11, 2021, granted, now 11,996,768.
Claims priority of provisional application 63/114,088, filed on Nov. 16, 2020.
Prior Publication US 2024/0380315 A1, Nov. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02M 1/42 (2007.01); H02M 1/00 (2006.01); H02M 1/08 (2006.01); H02M 3/157 (2006.01); H02M 7/538 (2007.01); H02M 7/5388 (2007.01)
CPC H02M 1/4225 (2013.01) [H02M 1/0025 (2021.05); H02M 1/083 (2013.01); H02M 1/4233 (2013.01); H02M 3/157 (2013.01); H02M 1/0054 (2021.05); H02M 7/5388 (2013.01); Y02B 70/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for controlling a power converter operable to receive a cyclically varying input signal, the apparatus comprising:
a discrete-time, on-time generator coupled to the power converter and configured to regulate an output voltage of the power converter; and
a controller configured to compare the output voltage of the power converter against a first predetermined range to:
obtain a comparison result at a zero-crossing of the cyclically varying input signal; and
select one of a plurality of operation levels of the discrete-time, on-time generator in response to the comparison result;
wherein the plurality of operation levels comprises a first discrete-time operation level and a second discrete-time operation level.