说明：  以PIC16C716低功耗单片机为核心设计了可以在恒压和恒流两种模式下工作的直流电子 负载. 通过功率控制，在恒流模式下，流过负载的电流恒定不变，且电流值可以设定；在恒压模式 下，加在负载上的电压恒定不变，且电压值可以设定. 系统可以显示电压电流参数，测量误差在 0.5 以内. 关键词：PIC单片机；功率控制；恒压模式；恒流模式
(PIC16C716 low-power microcontroller as the core design can work in both constant voltage and constant current mode DC electronic Load power control in constant current mode, constant current flowing through the load, and the current value can be set in constant voltage mode Next, the voltage applied to the load is constant, and the voltage value can be set. System can display the parameters of voltage and current, the measurement error in the 0.5 . Keywords: PIC microcontroller power control constant voltage mode constant current mode)