US 12,136,873 B2
Systems and methods for adaptive power factor correction
Steven Mikulak, Brea, CA (US); Randall Bird, Brea, CA (US); Austin Cotler, Brea, CA (US); and Robert Langer, Brea, CA (US)
Assigned to Safran Passenger Innovations, LLC, Brea, CA (US)
Appl. No. 18/709,347
Filed by Safran Passenger Innovations, LLC, Brea, CA (US)
PCT Filed Dec. 16, 2021, PCT No. PCT/US2021/063731
§ 371(c)(1), (2) Date May 10, 2024,
PCT Pub. No. WO2023/113796, PCT Pub. Date Jun. 22, 2023.
Prior Publication US 2024/0333140 A1, Oct. 3, 2024
Int. Cl. H02M 1/42 (2007.01); H02M 1/088 (2006.01); H02M 3/158 (2006.01)
CPC H02M 1/4225 (2013.01) [H02M 1/088 (2013.01); H02M 3/158 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An adaptive power factor correction system for an alternating current (AC) powered circuit, comprising:
a sensor electrically coupled to the circuit and configured to measure a current of the circuit and generate a sensor output;
an active power factor correction (APFC) unit comprising a set of branches including:
a first branch comprising a first switch serially connected with a first capacitor;
a second branch comprising a second serially connected with a second capacitor; and
a controller configured to receive the sensor output and cause the first switch to (i) close if the current of the circuit is greater than a first threshold and (ii) open if the current of the circuit is less than or equal to the first threshold.