摘要
为了提高逆变器的整体性能,以STC12C5A60S单片机为核心,设计并实现了一个小功率逆变器。通过单片机直接产生脉宽调制波,控制功率开关器件组成的桥电路实现逆变。根据单片机对外部电位器上电压的采样值对输出电压的幅值进行控制,使得输出电压幅度可调。采用数/模电路结合设计,使得逆变器的体积大大减小。硬件上的功能模块化设计,使整个系统的检测性和操控性大大加强。该逆变器电路简单,工作稳定可靠,且易于升级,具有较大的推广应用价值。
In order to improve the overall performance of the inverter,a low-power inverter taking STC12C5A60S single-chip microcomputer(SCM) as a core was designed and implemented.The SCM directly produces sinusoidal pulse width modulation(SPWM) wave to control the bridge circuit composed of power switching device to realize inverse transform.It can regulate the amplitude of the output voltage according to the voltage sampling value of the external potentiometer.A digilogue circuit was adopted in the design to make the size of the inverter reduced greatly.The modular design of hardware makes the whole system easy to test and manipulate.The inverter is simple,reliable and easy to upgrade.It has a popularization and application value.
出处
《现代电子技术》
2012年第4期192-194,共3页
Modern Electronics Technique
基金
广西高校重点建设实验室项目(200912)
广西研究生教育创新计划资助项目(2011106020809M50)
