高精度稳流电源控制系统中ADC、DAC芯片的应用

The application of ADC and DAC CMOS chip used in the control system of the high precision stabilized power supply

介绍了由高性能 14位D/A转换芯片MX75 34、2 4位A/D转换芯片AD7714与 89C5 1单片机连接而组成的高精度稳流电源控制系统的原理 ,给出了接口电路和编程方法。

The connection of the high performance 14 bits D/A convert chip MX7534 and 24 bits D/A convert chip AD7714 with microcomputer 89C51, and the principle of control system of the high precision stabilized power supply consisted of these components were discussed. The interface of the circuit and the system's software are also discussed.