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A Simple Digital Power-Factor Correction Rectifier Controller

2010; Institute of Electrical and Electronics Engineers; Volume: 26; Issue: 1 Linguagem: Inglês

10.1109/tpel.2010.2051458

1941-0107

Barry Mather, Dragan Maksimović,

Photovoltaic System Optimization Techniques

This paper introduces a single-phase digital power-factor correction (PFC) control approach that requires no input voltage sensing or explicit current-loop compensation, yet results in low-harmonic operation over a universal input voltage range and loads ranging from high-power operation in continuous conduction mode down to the near-zero load. The controller is based on low-resolution A/D converters and digital pulsewidth modulator, requires no microcontroller or DSP programming, and is well suited for a simple, low-cost integrated-circuit realization, or as a hardware description language core suitable for integration with other power control and power management functions. Experimental verification results are shown for a 300-W boost PFC rectifier.