数字控制正激变换器设计实现

Design of Digital Controlled Forward Converter

针对常规正激变换器输出电压数值调整困难,模拟反馈系统实现倚重经验,电源控制电路不够智能化的问题,提出一种由数字信号处理器控制的正激变化电路。该电路能够根据反馈信号快速调整控制参数,提高了输出电压稳定性,提高了电源的抗干扰能力。通过在不同负载下进行试验,证明该变换器具有参数调整智能化程度高、抗干扰能力强的特点。

According to some problems as adjustment difficulty of output voltage value in conventional forward converter, realization of analog feedback system on experience and unintelligent power control circuit,this paper puts forward to a forward converter circuit controlled by digital signal processor. This circuit can quick adjust control parameters according to the feedback signal, improve stability of output voltage and the anti-interference ability of the power. System tested under different load shows that this converter has advantages of parameter adjustment intelligent, strong antinterference ability.