ABSTRACT
The concept of resonance based on an LC tank circuit has long been used in high-power systems for generating sinusoidal voltage and current waveforms for testing and easy switching purposes. However, due to its circuit complexity it had not been widely employed in low-power DC-DC converter design until about the early 1990s. The thrust toward resonant power supplies has been fueled by the industry’s demand for miniaturization, high-power efficiency, as well as low EMI.
