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SOLID STATE STABILISER

ABSTRACT

The SOLID STATE STABILISER is an electronic device intended to provide a stable 230 V- 50 Hz output. The main purpose is to provide a constant voltage having a constant frequency. The input is taken from a common power supply of 230 V-50 Hz. The obtained voltage is converted to higher frequency and stepped up using a small ferrite core transformer. It is then converted to a lower frequency and stabilized to get the required regulated output voltage.

INTRODUCTION
The supply voltage we get is said to be 230V, 50Hz. But actually it is not so. The voltage fluctuates drastically. The frequency also undergoes fluctuations. The existing stabilizers regulate only voltage. Most of the electrical appliances are designed to work at the above mentioned standard values of voltage and frequency. Not only the variations in voltage but also that of frequency may affect the performance of these devices. So a device is to be developed, that regulates both voltage and frequency. Also, the conventional stabilizers use iron core transformers, they are bulky, they also produces eddy current losses and hysteresis losses. To overcome this iron core can be replaced by ferrite core. For this incoming frequency should be converted to high frequency. So, the size of the whole device can be reduced.