Abstract: The dead-time should be added to the drive signals of the conventional full-bridge active power filter（APF） so that the dead-time effect will be introduced and the APF compensation performance will be decreased.To resolve this problem,an interleaved buck full-bridge APF was proposed in this paper,of which the characteristics are no"shoot-through" phenomenon,high reliability,no dead-time and good compensation performance.Aiming at the disadvantage of big inductors number of the novel APF,the half wave double-frequency sinusoidal pulse width modulation（SPWM） is employed so that the inductance value of each inductor is reduced and the effects of volume and weight are weakened.Simulation and experimentation verify the validity of analysis and feasibility of the novel APF.