期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2016
卷号：4
期号：4
页码：7832
DOI：10.15680/IJIRCCE.2016.0404293
出版社：S&S Publications
摘要：This paper discusses the design and construction scheme of an inverter system which converts the DC voltage collected from a transformerless rectifierinto AC voltage. The output is sine wave. The system consists of transformer less dc voltage to the full bridge inverter circuitry with a passive filter. The power supply supplies the DC voltage needed to activate the optocouplers, which are connected to the switches of the full bridge circuitry. The optocouplers work as an isolation for the full bridge circuit. High frequency Pulse Width Modulated (PWM) pulses are generated by pwm generator ic SG3525 and provided to the switches of full bridge connection.The full bridge inverter outputs a square wave which is later conditioned convert to sine by an L-C filter
关键词：PWMpulse generation; soft start; frequency control circuit; driver circuit; IGBT based inverter; induction motors; switching element; variablespeed drive
