The Design of DC Load System

The DC load system with the main component of PIC16C716 low-power MCU,can work in the constant voltage and constant current two modes.In constant current mode,the current is constant whether the load voltage changes or not,and the current can be set.In the constant voltage mode,no matter how the current changes,the load voltage is constant,and voltage values can be set.The system can display the voltage and current,and the measurement parameters error is less than 0.5%.