Abstract: The paper presents the design of a new high-voltage and large-power switching mode amplifier using H-bridge inversion circuit with insulated gate bipolar transistor (IGBT) and integrating control circuit with pulsed width modulation (PWM), according to the requirements of a large electrodynamics vibration generator. The developed prototype is debugged and good performance is displayed. The large power IGBT driver circuit, unipolar PWM double frequency modulation, and output filter are discussed in this paper.