Two new lossless commutation pulse-width modulated cells using resonant disconnecting circuit and the corresponding families of DC-to-DC converters

Two families of lossless commutation pulse-width modulated DC-to-DC converters using resonant disconnecting circuit (LC-PWM-RDC) cells are discussed. The most important property of the families is the ability to regulate output power and voltage by pulse-width modulation, with constant operating frequency, without load limitation. The operating principle is presented along with a design oriented analysis, output characteristics, and simulation results. The authors show how to use these cells in DC link inverter applications.<>