Direct current load identification system

A method of operating an appliance comprising:

• obtaining, by one or more processors, from a current sensing circuit of the appliance, electrical data corresponding to a direct current load of the appliance, wherein the electrical data comprises electrical data indicative of a voltage drop across a shunt resistor of the current sensing circuit, wherein the current sensing circuit comprises a first subcircuit and a second subcircuit coupled in parallel, the first subcircuit comprises one or more resistors, the second subcircuit comprises one or more resistors, the first subcircuit and the second subcircuit further coupled to the shunt resistor to and the direct current load, an amplifier coupled between the shunt resistor and one or more processors, the amplifier comprises one or more resistors and a capacitor and coupled to a third subcircuit, the third subcircuit comprises one or more resistor and a capacitor;
• identifying, by the one or more processors, at least one attribute of the direct current load based, at least in part, on the electrical data;
• and
• activating, by the one or more processors, at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.

A dishwasher appliance comprising:

• a direct current peripheral;
• a current sensing circuit coupled to the direct current peripheral and configured to collect electrical data corresponding to the direct current peripheral, wherein the current sensing circuit comprises a first subcircuit and a second subcircuit coupled in parallel, the first subcircuit comprises one or more resistors, the second subcircuit comprises one or more resistors, the first subcircuit and the second subcircuit further coupled to a shunt resistor and the direct current load, an amplifier coupled between to the shunt resistor and one or more processors, the amplifier comprises one or more resistors and a capacitor and coupled to a third subcircuit, the third subcircuit comprises one or more resistor and a capacitor, wherein the electrical data comprises data indicative of an induced magnetic field;
• and
• the one or more processors configured to:
• identify at least one attribute of the direct current peripheral based, at least in part, on the electrical data;
• and
• activate at least one operation of the direct current peripheral or the dishwasher appliance based, at least in part, on identification of the at least one attribute of the direct current peripheral.