A Bipolar Hybrid Symmetrical Cockcroft-Walton Voltage Multiplier for High-Voltage DC Power Supplies

Voltage multiplier circuits play a crucial role in high-voltage DC power supplies. This paper proposes a bipolar hybrid symmetrical Cockcroft-Walton voltage multiplier for DC high-voltage applications. It consists in the connection of a positive and negative symmetrical voltage multiplier and a shared diode bridge. The proposed topology combines the advantages of the most common symmetrical voltage multipliers, resulting in a smaller and better-regulated output voltage drop, as well as reduced high-voltage isolation requirements and component count. Additionally, it does not require a center-tapped high-voltage transformer, reducing the system’s complexity. It fills the gap in the general framework of voltage multipliers and their respective bipolar topologies. The feasibility of the system has been numerically validated, and the performance of the proposed topology has been verified.