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Active-RC All-pass Filter

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Pages 4-5 | Received 09 Jun 1977, Published online: 10 Jul 2015
 

Abstract

The Teramoto method of realizing an RC all-pass is modified to obtain a grounded output with convenient impedance level. Additionally, it is shown that the circuit with a unity-gain amplifier and a little increased complexity of the passive parts, provides the same facilities. An n-th order all-pass with arbitrary complex poles can also be realized in this scheme for symmetric orientation of the branch admittances of the bridge. A second-order Padé delay network is presented by way of example of the generalized realization method.

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