摘要
在利用三端集成式稳压器LMH317构成直流稳压电源的基础上,添加由固态继电器阵列控制导通的高精度电阻,通过计算进行合理取值。由主控制器FPGA执行上位机指令,实现稳压器输出端电压大小调整。继电器AQY210具有电气开关特性,且内阻较小,对输出电压精度影响较小,通过对输出电压的正确标定,使其具有输出范围宽,精度高的优点,能够满足现代工业发展对能源供给装置的需求。
This design is based on the DC power supply which used the three-terminal adjustable regulator LMH317,added the precision resistors controled by an array of solid state relays and selected the value of resistance by calculating.With the FPGA execute instructions,the adjustable of the output voltage is realized. AQY210 is a switch with electrical characteristics,and the interface resistance is small.It has a little infulence on the precision of output voltage.With the correct demarcate of output voltage,the output scope would be wide and the precision would be high,it can also satisfy the demand of energy supplies to the modern industry development.
出处
《火力与指挥控制》
CSCD
北大核心
2015年第5期171-174,共4页
Fire Control & Command Control
关键词
直流稳压电源
固态继电器
高精度
稳压器
DC regulated power supply,solid state relay,high precision,voltage regulator
