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This paper presents a mixed fuzzy PID controller for DC/DC converters.In this control method,only the output voltage of DC/DC converter needs to be measured,and then the control signal is gained from a self-adjusting fuzzy controller paralleled with an intelligent integration link.The proposed method is implemented using an 8-bit microcontroller PIC16F877.The experimental results show that the method not only can speed the startup of DC/DC converter with smaller overshoot and no steady-state... This paper presents a mixed fuzzy PID controller for DC/DC converters.In this control method,only the output voltage of DC/DC converter needs to be measured,and then the control signal is gained from a self-adjusting fuzzy controller paralleled with an intelligent integration link.The proposed method is implemented using an 8-bit microcontroller PIC16F877.The experimental results show that the method not only can speed the startup of DC/DC converter with smaller overshoot and no steady-state error,but also has the advantages such as easily to be implemented,good generality and practical value for applications. 提出了一种用于DC/DC变换器的模糊PID混合控制策略,该方法只需测量DC/DC变换器的输出电压,然后由智能积分环节和自调整模糊控制器并联得到控制量,并且基于8位微控制器PIC16F877实现了这种控制策略。实验结果表明,该控制方法不但能使DC/DC变换器输出电压启动速度加快,超调量小无静态误差,而且易于实现,通用性好,具有实用价值。
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