模拟PID控制的开关电源系统存在电路复杂，调整困难，可靠性不高等问题。本文借助于DSP芯片强大的运算功 能，将模拟PID控制进行数字化改进- simulation of PID control switch power supply system is complex, difficult adjustment, circuit reliability of problems. This paper by DSP chip powerful computing power Can, th