Digital Control Strategy and Method of Power Supply Based on General DSP

Digital control is the main development direction of the power converter control currently. Due to the high computational complexity of proportion integration differentiation (PID) closed-loop control, the simple logical digital variable is introduced to replace the traditional PID control strategy of the PID closed-loop control. A set of compete, simple and effective digital converter control scheme and detailed implementation method are put forward. The scheme solves the all-digital control problem of the general digital signal processor (DSP). It makes the digital control algorithm simple, saves the resources and reduces the dependence of the dedicated DSP for the digital control used widely.