模数转换器AD7705在蓄电池质量检测中的应用

The Application of Converter AD7705 in Battery Test

采用16位模数转换芯片AD7705及精简指令集单片机AT90S8515为主要元器件,通过AD7705采集传感器检测到蓄电池的充放电过程,在AD7705内部将采集到的模拟信号转换成单片机所能识别的数据信号,AT90S8515单片机通过同步串行接口接收AD7705转换完成的16位数据值。给出了单片机与AD7705的硬件连接图,并详细介绍了软件设计方法。

The system＇ s hardware is based on the 16 bit A/D converter AD7705 and the RISC microchip AT90S8515, the sensors detect the process of battery＇ s charge or discharge and send the information to the AD7705 , then the AD7705 convert the analog signal to digit signal. The microchip use SPI interface to get the 16 bit data from the A/D converter. This paper has presented the design method of hardware and software.