摘要
该系统使用处理芯片TMS320F28XX为控制器,完成对电流控制值、反馈采样值的D/A、A/D转换,从而实现电流数字闭环控制系统,同时借助DC/DC恒流、恒压调整器LT3596完成功率驱动。可实现0~240 m A范围内电流的高精度控制,适用于受环境温度变化范围较大的恒流控制电路。
The system uses the processing chip TMS320F28 XX as the controller to complete D / A,A / D conversion of the controlled current value and the feedback sampled values in order to achieve digital closed loop for current control system. At the same time,DC / DC constant-current and constant-voltage regulator LT3596 is used to complete powerdriving. It can high precisely achievethe current control within 0 ~ 240 m A range,which is suitable for the constant current control circuit greatly affected by environmental temperature change.
出处
《仪表技术》
2016年第5期44-46,共3页
Instrumentation Technology
