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FEED FORWARD CONTROLLING CIRCUIT AND METHOD FOR VOLTAGE RIPPLE RESTRAINT
FEED FORWARD CONTROLLING CIRCUIT AND METHOD FOR VOLTAGE RIPPLE RESTRAINT
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机译:抑制电压纹波的前馈控制电路和方法
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摘要
A feed forward controlling circuit and a method for voltage ripple restraint are provided. The feed forward controlling circuit is used to perform the feed forward controlling method. The feed forward controlling method is used to restrain ripple of the output voltage in a power converter. The power converter is controlled by a control signal outputted from an output terminal of a controller. The method includes steps of: receiving an output voltage from an output terminal of a voltage converter; attenuating the output voltage to generate an electrical signal; acquiring a DC signal from the electrical signal; and obtaining a ripple compensation signal in accordance with the electrical signal and the DC signal to output to an output terminal of a controller. The output terminal of the controller outputs a control signal to control the power converter.
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