Modeling and Design of L-Complementary Self-Oscillating Class D Inverter With Output Voltage Clamping

New mathematical models of L-complementary self-oscillating class D inverter with output voltage clamping in the steady state and during starting are proposed in this paper. The proposed models are very useful for predicting the converter operation and optimizing the circuit design. Experimental results for a 42-W spiral compact fluorescent lamp electronic ballast are presented to validate the analysis.