An analogue controller-based predictive instantaneous current control scheme for single-phase and three-phase voltage-fed power factor correction (PFC) converters is proposed. Through a modification of the original control scheme for a digital controller-based single-phase converter, a simplified analogue controller-based single-phase version is obtained. Further, its three-phase version is obtained by employing a particular arrangement of the controller/modulator. The theory and implementation of the proposed simplified control for single-phase and three-phase power converters are described. Also, experimental results obtained from single-phase and three-phase prototype converters are shown to confirm the theory validity.
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