| CPC H02M 1/009 (2021.05) [H02M 1/007 (2021.05)] | 10 Claims |
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1. An apparatus for adjusting alternating current (AC)-direct current (DC) (AC-DC) converter output voltage, said apparatus comprising:
a plurality of ports configured to supply power to corresponding one or more loads;
an AC-DC converter circuit that converts AC power from an AC source to DC power;
a plurality of DC-DC converters coupled to a plurality of controllers;
a constant current source coupled to the AC-DC converter circuit and the plurality of controllers; and
a system controller that only communicates with the plurality of controllers and the constant current source,
wherein the plurality of controllers are coupled to corresponding plurality of ports to operate the one or more loads, the plurality of controllers monitor events for connection/disconnection, new profile request from the one or more loads and store respective port power profile,
wherein at least one controller of the plurality of controllers is a master controller or the system controller that communicates with the plurality of controllers, the AC-DC converter and the plurality of DC-DC converters, other plurality of controllers are slave controllers, the master controller or the system controller is configured to:
determine, from said slave controllers, input signals pertaining to parameters of power levels for each port of the plurality of ports based on the one or more loads that are connected to the corresponding plurality of ports, the power levels including current and voltage;
calculate, from the parameters determined, an optimal input voltage value for the plurality of DC-DC converters based on a highest voltage requested by one or more ports of the plurality of ports, the optimal input voltage is equal to the highest voltage requested plus an adjusted voltage; and
communicate the optimal input voltage to said AC-DC converter circuit through the constant current source, the master controller reads the plurality of DC-DC converters input voltage through digital communication to adjust the constant current source output coupled to AC-DC converter feedback circuit through digital communication till the input voltage of the plurality of the DC-DC converter reaches the optimal input voltage,
wherein, in response to the optimal input voltage, the AC-DC converter circuit regulates DC voltage that is being supplied to the plurality of DC-DC converters to operate the corresponding one or more loads, and
wherein the constant current source is directly connected to the system controller and each controller of the plurality of controllers.
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