Regulated AC Voltage Source

Abstract

This paper presents çRegulated AC Voltage Sourceé which bringing up microcontroller tosupport the controlling a phase of transformer in order to adjust and set the AC Voltage at rate 1 kVA220/10~220 V 50 Hz with Voltage Regulation less than 5% at 33 maximum voltage drop with theobjective of making the transformer to be an Regulated AC Voltage Source by using the principle ofmagnetic field changing which effects to the changing AC Voltage of transformer and then bringingoutput voltage of transformer to feedback in order to compare with voltage level that setting beforethen the controller set will be compared with the output voltage of the transformer and the voltagethat setting before, if voltage is unequalled, the controller set will adjust the output voltage oftransformer until it is equalled to the voltage level that setting before. The experimental result from theRegulated AC Voltage Source will be the lower Voltage Regulation percentage, and it is suitable forany kinds of work that needed constant voltage when the load is changed.