It depends on the inverter. Keep in mind that the average starting current of a motor is four times its running current, so the inverter would need to be able to handle a 54 Amp transient. (Or...
One 150 watt inverter reports 0.2 Amps (=approx 2.4watts) Another inverter (180 watts?) reported 0.4 Amps If you find a fairly complete spec sheet, it may tell you the Amps or Watts that it uses...
An AC power supply device can convert DC power to AC power source. The transformer will control the output voltage to the desired level that equipment can tolerate.
The answer above won't work...