摘要
为了解决传统电源输出电压幅度不高的问题,设计了一款高精度、高质量的直流稳压电源——虚地输出式数控电源.它采用ATmega8单片机和高精度16位DA转换芯片——DAC8532进行程序控制,通过差分放大电路、运算放大电路和设置不同的参考点来进行电压放大和输出,并通过负反馈来提高电压输出精度.该设备能够产生较高的输出电压,具有安全方便、自动快捷等优点.
A new type of quality and high-precision DC power supply based on virtual ground NC power supply is proposed. It overcomes the difficulties of low output voltage in the conventional power supply. It uses chip microcomputer- ATmega8 and 16-bit D/A converter -DAC8532 to control the program. The amplification and outputting are carried out by using differential amplifier circuit, operational amplifier circuit and setting different reference points. At the same time, it improves the precision of output voltage by negative feedback. It can provide a high output voltage. In addition, it is safe, convenient, automatic and fast.
出处
《应用科技》
CAS
2012年第2期59-61,共3页
Applied Science and Technology
基金
国家自然科学基金资助项目(60704018)
关键词
直流电源
虚地
ATMEGA8
数控
DC power supply
virtual ground
ATmega8
NC power supply
