Patent ID: 11892888
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A method of controlling an electronic apparatus including a plurality of input ports including a first plurality of input ports and a second plurality of input ports, each of the plurality of input ports configured to connect with one or more first external devices, an output port configured to connect with a second external device, a converter configured to output an output current to the output port, and an input determination circuit including a power input terminal commonly connected to the first plurality of input ports and the second plurality of input ports, a plurality of current sensing terminals, each of the plurality of current sensing terminals independently connected to one of the first plurality of input ports or one of the second plurality of input ports, a plurality of voltage sensing terminals, each of the plurality of voltage sensing terminals independently connected to one of the first plurality of input ports or one of the second plurality of input ports, and a plurality of control signal output terminals, each of the plurality of control signal output terminals corresponding to one of the first plurality of input ports or one of the second plurality of input ports, the method comprising:
identifying power required for operating the second external device; and
controlling levels of input currents from the first plurality of input ports applied to a converter to output the output current, based on the identified power required for operating the second external device and based on an output from one or more of the plurality of current sensing terminals of the input determination circuit,
wherein the controlling the levels of the input currents from the first plurality of input ports comprises:
controlling a level of at least one of the input currents from the first plurality of input ports such that a sum of the input currents from the first plurality of input ports corresponds to the output current for the identified power, wherein the level of the at least one of the input currents is adjusted within a maximum available current for each of the first plurality of input ports, and
based on detecting that the levels of all of the input currents from the first plurality of input ports reach the maximum available currents for all of the first plurality of input ports, adding an input current from at least one of the second plurality of input ports to the input currents applied to the converter

wherein the input determination circuit further includes: a plurality of connecting circuits provided between the plurality of input ports and the power input terminal, the plurality of current sensing terminals, the plurality of voltage sensing terminals and the plurality of control signal output terminals, wherein each of the plurality of connecting circuits includes: a diode connected between the power input terminal and a respective input port, among the plurality of input ports, a transistor having a source connected to the respective input port, among the plurality of input ports, and a gate connected to a respective control signal output terminal, among the plurality of control signal output terminals, and a resistor connected to a drain terminal of the transistor.