Microcontroller-based unity power factor converter

الملخص EN

To improve power factors and to meet IEC-555-2 harmonic requirements, input power-factor correction circuits are being widely used in the power supply industry.

In response to this trend, a microcontroller-based pulse-width modulated single phase ac to dc unity power factor converter has been designed, implemented, and tested to evaluate its performance.

Simulation and experimental results confirm that the supply current can be controlled to remain almost sinusoidal with a near unity power factor by means of the proposed control strategy.