Amplification device
专利汇可以提供Amplification device专利检索，专利查询，专利分析的服务。并且PURPOSE: To provide a large band width by serially connecting a mutual admittance circuit and a mutual impedance amplifier provided with a current negative feedback circuit and turning the coefficients of respective transmission functions to specified values.
CONSTITUTION: For this amplification device, the mutual impedance amplifier 211 is serially connected to the mutual admittance circuit 305 and arranged. The mutual impedance amplifier 211 is negatively fed back by the current negative feedback circuit provided with the parallel circuit of a resistor r
f and a capacitor C
f . The coefficient of the transmission function of the mutual impedance amplifier presents primary reduction above a first frequency F
1 and presents secondary reduction above a second frequency F
2 , and for the current negative feedback circuit, the reciprocal of the coefficient of the transmission function of the negative feedback impedance below F
2 is smaller than the coefficient of the transmission function of the mutual impedance amplifier and the coefficient of the transmission function of the negative feedback impedance presents the primary reduction above a third frequency F
3 . Thus, the coefficient of the transmission function of a negative feedback mutual impedance amplifier presents the primary reduction above a forth frequency almost equal to F
3 and presents the secondary reduction above a fifth frequency F
5 above F
2 .
COPYRIGHT: (C)1989,JPO，下面是Amplification device专利的具体信息内容。
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