Perancangan Inverter Satu Fasa 12V DC ke 220V AC Berbasis Ic PWM Tipe CD4047BE

Abstract

An inverter is an electronic device that functions to convert direct current (DC) voltage into alternating current (AC) voltage. In this design, a single-phase inverter is developed to convert 12V DC into 220V AC using a PWM IC type CD4047BE as the pulse signal generator. The CD4047BE is operated in astable mode to produce a symmetrical square wave signal, which is then amplified and used to control power transistors or MOSFETs that act as switching devices for the step-up transformer. The transformer increases the output voltage up to 220V AC. This system is designed for small-scale applications such as emergency lighting or light electronic devices. Testing showed that the inverter circuit is capable of generating AC voltage with a frequency close to 50 Hz and a waveform that approximates a square wave. These results indicate that the CD4047BE is effective as a PWM controller in a simple inverter system.