This chapter addresses the challenge of impedance matching in induction heating systems operating with dual- or triple-frequency output currents. Traditional methods, such as buck converters and controlled rectifiers, often result in complex converter structures, increased electromagnetic interference, and higher costs. To overcome these limitations, a novel DC/DC converter utilizing a switched-capacitor unit, designed to improve efficiency and reduce interference by discretely adjusting the inverter’s input voltage, has been proposed. Simulation results validate the effectiveness of this approach. However, a significant drawback is the need for additional circuits for capacitor charging during high-frequency operation.