An inverter assembly having a DC circuit, inverter, and controller configured to control the inverter, the inverter being, for example, a multilevel inverter having a first half bridge and a second half bridge. A tuning module has a reception channel based upon a two-stage down conversion to baseband, and is connected between the inputoutput terminal and an analog-to-digital conversion stage. For each signing operation, two additional steps are respectively carried out with a separate private key, i. The laser drill uses the laser trim files to trim the resistors within each bin in accordance with the laser trim file assigned to that bin. The game of chance is operated to select a prize for award to the player.