US Patent 11839329 Three dimensional induction rethermalizing station and control system

A method of operating a rethermalizing station having an induction coil includes detecting a temperature of a food pan, selecting, based on the temperature of the food pan, a selected mode from a set comprising a low temperature mode, an over temperature mode, and a keep warm mode, and varying, in accordance with the selected mode, an output power of the induction coil by controlling a supply current to the induction coil to vary between a first nonzero current value and a second nonzero current value.