US 12,438,451 B2
Power converter, controller, and methods
Russell Jacques, Shatin (HK); and David Coulson, Shatin (HK)
Assigned to Redisem LTD., Shatin (HK)
Appl. No. 18/002,047
Filed by REDISEM LTD., Hong Kong (CN)
PCT Filed Jun. 16, 2020, PCT No. PCT/CN2020/096411
§ 371(c)(1), (2) Date Dec. 15, 2022,
PCT Pub. No. WO2021/253243, PCT Pub. Date Dec. 23, 2021.
Prior Publication US 2023/0246543 A1, Aug. 3, 2023
Int. Cl. H02M 3/157 (2006.01); H02M 1/00 (2006.01); H02M 1/42 (2007.01)
CPC H02M 1/4258 (2013.01) [H02M 1/0019 (2021.05); H02M 3/157 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A power converter comprising:
an active power factor correction (APFC) circuit;
a first compensation circuit for providing a first compensation signal to the APFC circuit;
a second compensation circuit for providing a second compensation signal to the APFC circuit; and
a load demand sensing circuit for receiving a load demand signal to switch on the second compensation circuit to provide the second compensation signal, wherein the load demand signal is a load change request signal.