Nonideal performance of two-amplifier positive-impedance converters
- 1 November 1970
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuit Theory
- Vol. 17 (4) , 541-549
- https://doi.org/10.1109/tct.1970.1083160
Abstract
Positive-impedance converting networks may be used to realize driving-point inductance and frequency-dependent negative resistance. TheQfactors of these immittances are evaluated over a wide frequency range in terms of the relevant parameters. Three distinct types ofQ-factor behavior are derived and it is shown that extended wide-band operation may be achieved such thatQfactor is virtually independent of amplifier phase shift. The use of design-value asymptotes is explained as a means of determining the behavior of practical circuits.Keywords
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