High power — Factor electronic ballast based on integration techniques to drive high intensity discharge metal halide (HID-MH) lamps

This work presents a single stage converter to drive HID-MH lamps. The integration of two DCM boost converters, in an interleaved way, with a half bridge voltage inverter and the use of a square current waveform applied to the lamp results in an electronic ballast with high power factor using a simple control strategy to avoid the acoustic resonance.