An electronic ballast with power factor correction for fluorescent lamps

A high-frequency electronic ballast with high power factor and low harmonic distortion for driving two 36 W fluorescent lamps is presented in this paper. The power factor correction (PFC) is required to shape the input line current. Also, the low-pass filter at the mains is used to reduce the harmonic distortion and to reduce the radio frequency interference (RFI) injected from the high-frequency electronic ballast into the mains. Experimental results have been obtained for the circuit of electronic ballast. The experimental measurements show that the proposed electronic ballast has features of continuous line current, adequate power factor correction and reasonable total harmonic distortion (THD).