Active networks having biquadratic transfer functions

Details Active networks having biquadratic transfer functions Active networks having biquadratic transfer functions

H - Electricity

03

H

333/53

H03H 7/01 (2006.01) H03H 11/12 (2006.01)

Patent

CA 1077146

ACTIVE NETWORKS HAVING BIQUADRATIC TRANSFER FUNCTIONS by Man Shek Lee ABSTRACT OF DISCLOSURE First, second, and third single-input, single-output operational amplifiers having associated input resistors and feedback resistors are connected in series between input and output terminals. First and second capacitors are also connected across associated first and second amplifiers to provide a second-order network transfer function. A fourth feedback resistor is connected between the output terminal of the third amplifier and the amplifier side of the first input resistor. The amplifier input sides of the second and third input resistors are also connected through associated feed-forward resistors to the one side of the first input resistor that is spaced from the first amplifier. Appropriate selection of element values enables synthesis of circuits having prescribed biquadratic transfer functions. - 1 -

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