基于DSP2812的交流信号实时采样系统

AC Real-time Sampling System Based on DSP2812

提出一种基于TMS320F2812 DSP的交流信号实时采样系统的设计方案。该方案主要由闭环霍尔传感器、信号预处理电路、数字信号处理器DSP2812及误差校准电路组成。给出了硬件电路设计及软件编程方法,并通过软件算法校正了由DSP2812内部ADC模块对采样结果带来的增益误差和失调误差,提高了系统的采样精度。

In this paper, an AC circuit sampling system design is presented based on the TMS320F2812 DSP, which is composed of closed-loop Hall sensor, signal preprocessing circuit, digital signal processor DSP2812 and error correcting circuit. Furthermore, the hardware circuit and software programming for the AC circuit sampling system are completed, and the gain error and the offset error caused by DSP2812 internal ADC module are corrected by software algorithm, and the acquisition accuracy of it is improved.