范文编号:CK117 范文字数:15309,页数:61 摘 要 文章主要设计了以ARM微处理器为核心芯片的三相逆变电源。首先对逆变技术概念、发展概况及应用领域做了简要介绍。其次分析了SPWM技术的原理,并针对SPWM实现的几种生成方法展开了分析与讨论。硬件主要分为三个部分,逆变器、检测电路和主控单元。逆变器采用智能功率模块,大大简化了该部分电路的复杂程度。检测电路由电压检测和电流检测构成。主控单元的主控芯片选用了ARM芯片LPC2131,使用它的PWM模块,输出SPWM波形,以控制逆变电路工作。 Abstract This paper mainly designed a three-phase inverter to ARM microprocessor core chips. First, the concept, development and application areas of the inverter technology are briefly introduced. Second, it analyzed the principle of the SPWM technique and discussed several SPWM generation methods. Hardware is divided into three parts, inverter, detection circuit and the main control unit. Inverter used intelligent power module, which greatly simplifies the complexity of the part of the inverter circuit. The voltage detection and current detection constituted the detection circuit. chip LPC2131 was selected as Master control unit, with its PWM module, the output SPWM waveform can control the inverter circuit. 目 录
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