Rectifiers are generally categorized as passive and active rectifiers. Compared to the active rectifiers (e.g. pulse width modulated (PWM) rectifiers), passive rectifiers (i.e., diode rectifiers) result in higher total harmonic distortion (THD) in the input current. However, passive rectifiers are simpler than the active rectifiers in their hardware and control structure. Therefore, passive rectifiers are still considered with different THD minimization schemes. In industry, three-phase diode rectifiers are used in 6-pulse, 12-pulse, 18-pulse, and 24-pulse configurations with THD values of 30%, 15%, 10%, and 6%, respectively. Single-phase diode rectifiers result in a higher THD of 48%. Minimization of THD for single-phase rectifiers is a conspicuous need for increasing DC appliances for domestic use. This paper proposes a novel rectifier using a conventional diode bridge followed by a series chopper. A controlled conduction angle of the chopper significantly reduces the THD from 48 to 28%. The THD is further reduced to 16.4% on the primary side of the distribution transformer after the elimination of triple-n harmonics in a balanced configuration. The proposed topology uses a single switch operating at the line frequency making the circuit and control much simpler than a PWM rectifier, and the dynamic power loss is also low. So, the proposed topology is better suited for single-phase applications requiring circuit and control simpler than a PWM rectifier, and THD much lower than a conventional diode bridge rectifier. A comprehensive analytical analysis, circuit simulations, power loss analysis, and experimental results are presented for the proposed topology to validate its working and evaluate its performance.

整流器通常分为无源整流器和有源整流器。与有源整流器（例如脉宽调制（PWM）整流器）相比，无源整流器（即二极管整流器）会导致输入电流中的总谐波失真（THD）更高。然而，无源整流器的硬件和控制结构比有源整流器简单。因此，无源整流器仍需考虑不同的 THD 最小化方案。在工业中，三相二极管整流器用于6脉冲、12脉冲、18脉冲和24脉冲配置，THD值分别为30%、15%、10%和6%。单相二极管整流器的 THD 高达 48%。最小化单相整流器的 THD 是增加家用直流电器的迫切需要。本文提出了一种新型整流器，使用传统的二极管电桥和串联斩波器。斩波器的受控导通角可将 THD 从 48% 显着降低至 28%。在平衡配置中消除三次n谐波后，配电变压器一次侧的THD进一步降低至16.4%。所提出的拓扑结构使用以线路频率运行的单个开关，使得电路和控制比 PWM 整流器简单得多，并且动态功率损耗也很低。因此，所提出的拓扑结构更适合需要比 PWM 整流器更简单的电路和控制且 THD 比传统二极管桥式整流器低得多的单相应用。对所提出的拓扑进行了全面的分析分析、电路仿真、功率损耗分析和实验结果，以验证其工作并评估其性能。