用LPC2294实现的三相SPWM波形发生器

Three-phase SPWM waveform generator based on LPC2294

LPC2294是Philips公司生产的,基于ARM内核具有丰富的硬件外围功能单元,适合工业控制应用的高性能32位微处理器。文章介绍利用该芯片内嵌的PWM和定时器电路实现三相SPWM波形的原理和方法,并对产生SPWM的算法、死区时间控制、硬件电路和软件流程进行了较详细介绍。

LPC2294 is produced by Philips Inc., which is based on ARM kernel with the abundant hardware peripheral functional units, and,be fit for the high performance 32-bits microprocessor that is applied to the industrial control. This paper introduced the principles and methods of generating three-phase SPWM waveform by using the chip interior PWM and the timer electric circuit. And it had a much detailed introduction for the algorithm of generating SPWM, dead time control, hardware electric circuit and software flow.