US 12,451,694 B2
Power adapters with multiple charging ports
Gwanbon Koo, Fremont, CA (US); Youngbae Park, Taipei (TW); and BongGeun Chung, Siheung (KR)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Mar. 23, 2023, as Appl. No. 18/188,580.
Application 18/188,580 is a division of application No. 17/191,115, filed on Mar. 3, 2021, granted, now 11,646,581.
Prior Publication US 2023/0238802 A1, Jul. 27, 2023
Int. Cl. H02J 3/18 (2006.01); H01H 9/54 (2006.01); H02J 7/00 (2006.01); H02M 1/00 (2006.01); H02M 3/335 (2006.01)
CPC H02J 3/1821 (2013.01) [H01H 9/541 (2013.01); H02J 7/0013 (2013.01); H02J 7/0045 (2013.01); H02J 2207/20 (2020.01); H02M 1/0048 (2021.05); H02M 3/33576 (2013.01); H02M 3/33592 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method comprising:
supplying a first bus voltage to a first device by a first DC-DC converter coupled to a link voltage;
supplying a second bus voltage to a second device by a second DC-DC converter coupled to the link voltage;
converting an AC voltage to the link voltage by way of an AC-DC converter;
generating, by a voltage divider coupled to the link voltage, a reference voltage based on the link voltage;
selecting, by a shunt regulator, a setpoint for the link voltage; and
creating, by the shunt regulator and based on the reference voltage and the setpoint, a feedback path signal for regulating the AC-DC converter to drive the link voltage to the setpoint.