Techniques for high performance inverter charger systems are described herein. In one embodiment, a power supply system includes, but is not limited to, an inverter to generate an AC (alternating current) output based on a DC (direct current) input, a current sensing circuit coupled to the inverter to sense an amount of current drawn from the inverter, and a microcontroller coupled to the inverter and the current sensing circuit to reduce the AC output of the inverter according to a predetermined algorithm stored within the microcontroller, in response to a detection that the amount of current drops below a predetermined threshold. Other methods and apparatuses are also described.