US 11,984,838 B2
Direct current load identification system
Ricardo Alberto Aguiar, Jr., Clarksville, IN (US); Maria Alejandra Contreras, Jeffersonville, IN (US); Timothy David Kaiser, Louisville, KY (US); and Brett Alan Farris, Louisville, KY (US)
Assigned to Haier US Appliance Solutions, Inc.
Filed by Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed on Jul. 16, 2021, as Appl. No. 17/377,966.
Prior Publication US 2023/0015422 A1, Jan. 19, 2023
Int. Cl. H02P 7/34 (2016.01); A47L 15/42 (2006.01); A47L 15/46 (2006.01); G05B 19/042 (2006.01)
CPC H02P 7/34 (2013.01) [A47L 15/4225 (2013.01); A47L 15/46 (2013.01); G05B 19/042 (2013.01); A47L 15/4274 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An appliance comprising:
a direct current load;
a current sensing circuit coupled to the direct current load and configured to collect electrical data corresponding to the direct current load, 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 coupled 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, 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 load based, at least in part, on the electrical data; and
activate 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.
wherein the electrical data comprises data indicative of the induced magnetic field.