说明：  如何实现？在一个在稳压电源后面加MCU控制一个稳定输出的电流，电流输出波形要求如图所示。---这里提供硬件图纸,配合单片机PWM 输出 来实现.
(How? In a regulated power supply followed by the MCU to control a stable output current, the current requirements of the output waveform as shown.--- Here are the hardware drawings, with the microcontroller PWM output to achieve.)