Design and Implementation of a Numerical Control High-Precision Low-Temperature Drift Constant Current Source

摘要

According to the testing demand of a certain type of equipment, the current design scheme of constant current source is compared and analyzed, and the overall scheme is determined by considering the factors such as cost and index. Next, it is designed and hardware selected of power supply circuit, constant current circuit, and control circuit, and the hardware circuit is built. The system software design flow is analyzed. Finally, the system is tested and the results show that the design requirements are met.