r0005">The sensorless techniques in rectifiers are introduced as an attractive option to meet the PFC requirements such as: DC voltage regulation under AC voltage sags at input, load step changes at output, unitary power factor and constant low THD current input.

r0010">The mathematical model and control rule for current sensorless single-phase power factor correction rectifiers are introduced and analyzed.

r0015">The proposed control strategy improves the overall performance of PFC rectifiers when compared with similar systems presented in the open literature while reducing the computational-burden associated with the digital controller of the PFC.

r0020">The proposal is based on SPWM, does not require a variable transformation into the dq0 reference frame nor the need of complex compensators after the PI controller stage.