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METHOD FOR DOUBLE SAMPLING LOOP NEGATIVE FEEDBACK AND DOUBLE SAMPLING NEGATIVE FEEDBACK AMPLIFIER
METHOD FOR DOUBLE SAMPLING LOOP NEGATIVE FEEDBACK AND DOUBLE SAMPLING NEGATIVE FEEDBACK AMPLIFIER
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机译:双采样环负反馈和双采样负反馈放大器的方法
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摘要
The invention provides a method for double sampling loop negative feedback, including the steps: obtaining a low-frequency feedback signal from the output of the amplifier; obtaining a high-frequency feedback signal from part of the amplifier of which high-frequency phase shift is low, wherein two-ways sampling signals have the same amplifying phase; combining the two-ways sampling signals together using a series capacitor-inductor double signal combining circuit to form one signal, the signal having low phase shift at both high and low-frequency and being used for negative loop feedback. The invention also provides a double negative feedback amplifier using the method.
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