Design of Digital E-Load Controller Based on DSP

To improve poor reliability and adaptability of the traditional electronic load,design a DSP-based high-speed digital controller.Using the advantages of digital PID control,the digital electronic load based on 32-bit fixed-point DSP TMS320LF2812,has the characteristics of rapid adjustment in accordance with the load voltage and current according to settings.Better meet the test system speed and stability of the requirements,not only have some improvement in accuracy,but also improve the system steady-state and dynamic characteristics.Test results show that the use of DSP as a controller of the digital electronic load,in the occasions with higher demand of control capability,which has a potential value for application.