GENERATION OF HIGH VOLTAGE USING COCKCROFT –WALTON VOLTAGE MULTIPLIER CIRCUIT

Abstract

The objective of the project is to design a voltage multiplier which should be able to multiply voltage from an input as low as 12 Volts to a maximum output of approximately 200 Volts. As High Voltage DC (HVDC) transmission is becoming more popular in the present scenario of bulk power transmission over long distance transmission, it is required to study the testing of various insulation materials at laboratory level in under graduate and post graduate course curricam. Since, generation and handling of high voltage is very dangerous and required skilled personnel in the laboratory. In addition, it is very much costly. Cockcroft-Walton multiplier provides suitable high DC voltage source from a low input voltage i.e. 230 V AC supplies which is rectified by using half wave rectifier circuit. Designing of the circuit is based on Cockcroft Walton Principle that consists of ladder network of Capacitor and Diodes. Other specifications considered carefully while designing multiplier and components must be used based on size consideration for expected load current and expected output voltage. Finally, the results are compiled from the simulations done on MATLAB. A prototype was designed and experimental result was tested and demonstrate was purpose.