Equivalent model and output characteristics for multi-stage balanced Cockcroft-Walton circuit
Based on the output effect of the circuit, the study used the charge transfer principle to describe the relative complex physical processes of balanced Cockcroft-Walton(C-W) circuit. Given the periodically turning model to mathematical analysis is equivalent to nonlinear conduction properties of the diode, theoretical model output formulas of ripple voltage and load-dropping output voltage that describe the output characteristics of C-W circuit are derivated. With circuit simulation software, the ripple voltage and the output voltage waveforms of the basic and balanced C-W circuit are simulated, and it illustrates that the ripple voltage of the balanced topology is far less than the basic, approximately the value percentage of 8%. The outputs of the theoretical model established in this paper are verified, and the results show that the calculated ripple voltage from the theoretical model is slightly lower than the simulation values, and the relative error between the calculated output voltage and simulation values is less than 10%.