Control method for improving dynamic response of switch power
地域：
Nanjing
摘要
A control method for improving dynamic response of switch power is based on a closed-loop control system comprising a sampling module, a dynamic control module, an error calculation module, a PID module, a mode control module, and a PWM module. The sampling module samples an output voltage Vo, and the dynamic control module compares the output voltage Vo with a set maximum voltage Vomax, a set minimum voltage Vomin, and a reference voltage Vref, so as to determine whether to adopt a dynamic mode. In the dynamic mode, when the output voltage Vo changes greatly, the output voltage Vo is rapidly restored to a stable voltage by inputting large power or small power.
說明書
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The sampling module comprises the sampling circuit and the sampling calculation module, the sampling circuit outputs a partial voltage through the switch power to obtain the information of the output voltage, and the sampling calculation module gives a control signal and the output voltage Vo of the sampling circuit according to the result of the sampling circuit. The sampling here can be direct sampling or indirect sampling, and the sampling result can be an analog quantity or digital quantity.
The dynamic control module comprises the voltage monitoring module and the slope calculation module.
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