Three-phase rectifier topology with active current injection for improved power quality and high efficiency. The proposed rectifier consists of a boost-type power factor correction stage and a three-phase diode rectifier with a midpoint connection. The active current injection is implemented using a fourth leg with a high-frequency switching converter, which injects a controlled current to balance the input current waveform and reduce the harmonic content. The rectifier topology and control strategy are presented in detail, and simulation and experimental results demonstrate the improved power quality and high efficiency of the proposed system. The proposed rectifier is suitable for a wide range of applications, including renewable energy systems and electric vehicles. Three-phase rectifiers are commonly used in various applications, such as motor drives and power supplies. The efficiency of these rectifiers plays a vital role in determining the overall performance of the system. One of the significant challenges in designing three-phase rectifiers is the high harmonic distortion caused by the switching action of the power devices. To overcome this issue, various control strategies have been proposed, including active current injection. Active current injection is a well-known control technique that can be used to reduce the harmonic distortion and improve the efficiency of three-phase rectifiers. In this technique, a low-frequency voltage signal is injected into the rectifier's control circuit to control the switching of the power devices. This helps to reduce the harmonic content of the output voltage and current, resulting in a more efficient and reliable system