Development of high voltage direct current (dc) generator with solid state devices / Adnan Ahmad and Din lsa

The application of the solid state devices to generate high d.c. voltage direct current has developed significantly in the electrical power engineering. The advantages of using the solid state in the circuit in generating high voltage are the equipment will be reduced in size, light in weight, inexpensive and less dangerous. In this project, the idea is to get the dc high voltage direct from 3 pin ac power supply. The voltage is rectified by bridge rectifier and then applied to a saturable core inverter in which a self-sustaining oscillation occurs in the power transistor with a very high frequency. At the same time, the application of dc voltage into the saturable core inverter will cause the flux to be saturated in the core of flyback transformer . The switching off of the power transistor win cause the flux fall and cut the entire secondary winding of the flyback transformer to generate an oscillation high voltage oscillating signal. The scope of works to be covered in this project are : To design and construct an adjustable high d.c.voltagc equipment. To perform a close study on output characteristic produced by flyback transformer such as rise time, fall time, repetition rate etc.