: Consists of the work coil (inductor) and high-voltage resonant capacitors. This stage facilitates the electromagnetic induction required to heat compatible cookware.

: Typically indicates a problem with the mains voltage being too low or too high.

: Converts 220V AC input into high-voltage DC (around +310V) via a bridge rectifier and a large filter capacitor. It also includes a step-down Switch Mode Power Supply (SMPS) that provides +18V for the cooling fan and IGBT driver, and +5V for the microcontroller.