The conversion of AC power into DC power through a single phase rectifier will typically introduces a low-frequency current ripple（at twice the AC input voltage frequency）at the DC input side of the rectifier system. Without a large capacitor at the DC-link

this non-negligible low-frequency current ripple will be detrimental to its output utilities. The AC filter component is divided and reconstructs as the single phase differential high-frequency rectifier circuit. Based on this topology

the comparisons of two waveform control algorithms of voltage control mode and current control mode are presented to analyze their advantages and disadvantages. An optimized waveform control method of voltage control mode is proposed in this paper. There are some advantages: unity power factor

without the low-frequency current ripple

a low circulation energy inside the rectifier and without other undesired harmonics. Theoretical analysis and simulation results are provided to verify the effectiveness of the proposed wave-form control algorithm. This algorithm would be appropriate to the power conversion applications without electrolytic capacitor.