摘要
研究单片机系统控制数模转换器输出产生各种步进电压和电流的一种数控直流电源.首先要自制一个±15 V稳压电源,利用电源给单片机和数模转换器及其他芯片供电.研究数控电源制作中电压源如何由D/A转换芯片TLV5618和恒流源中误差放大器TL082的选择及参数的计算.
This paper mainly researches a CNC DC power supply controlled by SCM system and output by DAC, which can produce a variety of stepped voltage and current. First a stabilized voltage supply of ±15V is made, supplying power for SCM, DAC and other chips. How D/A conversion chip TLV5618 generates voltage source and how the error amplifier TL082 in current source selects and calculates parameters during the production of NC Power are studied.
出处
《河北北方学院学报(自然科学版)》
2009年第6期10-13,共4页
Journal of Hebei North University:Natural Science Edition
关键词
恒流源
电压源
误差放大器
D/A转换
constant current source
voltage source
error amplifier
D/A converter