Title :
Behavior of the n-stage Darlington configuration
Author :
Lloret Sebastian, J.L. ; Espi Lopez, J. ; Vicens Lorente, M.
Abstract :
The input impedance of a n- stage Darlington configuration is analyzed by using the hybrid-II equivalent circuit. Instability arise for n ≥ 2 as a result of real part being negative at some frequencies. A single transistor can also be made to oscillate by connecting an external capacitor between emitter and ground.
Keywords :
Acoustic devices; Capacitors; Closed-form solution; Equations; Equivalent circuits; Frequency; Impedance; Surface acoustic wave devices; Surface acoustic waves; Transient response;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1971.8477
