This paper proposes a simple Digital control of PFC using sine pulse width modulation (SPWM) technique. This technique requires DSPIC30F3011, an Inverter circuit & Power factor measurement circuit which detects voltage and current lead/lag. Results of using SPWM give very pure sine wave output with very less harmonics and distortions. The proposed Digital control of PFC is a different approach than boost converter control used in PFC and overcomes the problem of limited switching frequency. The

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... efficiency of the inverter is high and offers very less harmonic distortion. Simulation results indicate that power factor very near to unity can be achieved using the proposed method.