Design of Class DE Inverter with Band-pass Filter

This paper presents design procedure and experimental results class DE inverter with band-pass filter. In the proposed inverter, band-pass filter is used instead of resonant filter in the class DE inverter presented at the previous papers. By using band-pass filter, the sensitivity of output voltage to the operating frequency can be suppressed. By carrying out circuit experiments, we show that the experimental results agree with numerical ones quantitatively. The laboratory experiments achieve 90.4% power conversion efficiency under 2.2 W output power and 1 MHz operation