RF Band PWM Generator with High Efficiency and Wide-Band Control

RF (Radio Frequency) generators in the LF to HF (30 kHz to 30 MHz) band are often used. Variable frequency control is also required, but there have been no examples of systems that satisfy large capacity and high efficiency. This paper proposes an RF band PWM generator (RF-PWM generator) which enables large-capacity, high-efficiency, and wide-band control, and introduces the related theory and technology. In summary, odd function control of the small number pulse train, new Fourier series expansion equation which can correspond to the small number pulse train, and standing wave countermeasures generated in the transmission circuit are described.