Transistor Negative-Impedance Converters

Negative impedances having very stable characteristics are obtained with circuits using transistors. The physical characteristics of transistors, compactness, long life, simple power requirements, plus constancy of pertinent electrical parameters enhance their practical utility in the production of negative impedances.

[1]  E. W. Herold,et al.  Negative Resistance and Devices for Obtaining It , 1935, Proceedings of the Institute of Radio Engineers.

[2]  George Crisson,et al.  Negative impedances and the twin 21-type repeater , 1931 .

[3]  L. C. Verman,et al.  Negative Circuit Constants , 1931, Proceedings of the Institute of Radio Engineers.

[4]  J. L. Merrill.  Theory of the negative impedance converter , 1951 .