US 12,244,169 B2
Current sharing for multi-output charging device
Eng Hwee Quek, Singapore (SG); Aditya Jayant Kulkarni, Shrewsbury, MA (US); Ran Li, San Jose, CA (US); and Roland Sylvere Saint-Pierre, San Jose, CA (US)
Assigned to POWER INTEGRATIONS, INC., San Jose, CA (US)
Filed by POWER INTEGRATIONS, INC., San Jose, CA (US)
Filed on Sep. 20, 2023, as Appl. No. 18/370,768.
Application 18/370,768 is a continuation of application No. 17/106,507, filed on Nov. 30, 2020, granted, now 11,799,311.
Application 17/106,507 is a continuation of application No. PCT/CN2019/101831, filed on Aug. 21, 2019.
Prior Publication US 2024/0014679 A1, Jan. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 7/00 (2006.01); H02J 7/02 (2016.01)
CPC H02J 7/00712 (2020.01) [H02J 7/0019 (2013.01); H02J 7/02 (2013.01); H02J 2207/20 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A control system for a first power converter, the control system comprising:
a primary controller configured to control the turn ON and turn OFF of a power switch to control a transfer of energy between an input of the first power converter to an output of the first power converter, wherein the output of the first power converter is to be coupled to a first socket;
a secondary controller configured to sense a first output current of the first power converter and, in response to the sensed first output current, to generate and send to the primary controller a request signal to turn ON the power switch; and
a power delivery (PD) controller configured to provide an enable signal to control a turn ON and turn OFF of a bidirectional switch to be coupled to the output of the first power converter and an output of a second power converter, wherein the output of the second power converter is to be coupled to a second socket,
wherein the PD controller is configured to detect a coupling of the first socket to a first powered device and a coupling of the second socket to a second powered device,
wherein the PD controller is configured to provide the enable signal to turn ON the bidirectional switch in response to the coupling of the first socket to the first powered device and an absence of the coupling of the second socket to the second powered device.