Title :
The Common-Collector Transistor Amplifier at Carrier Frequencies
Author_Institution :
Bell Telephone Laboratories, Murray Hill, N.J.
Abstract :
Expressions are derived for input resistance, output resistance and ratio of input to output voltage and current at low frequencies for transmission in both the base-to-emitter and the emitter-to-base directions. These expressions are extended to the carrier frequency range (up to approximately twice the alpha-cutoff frequency) by considering the effect of the variation of alpha with frequency, of collector capacitance and of load capacitance. Experimental evidence is presented which verifies the equations obtained.
Keywords :
Capacitance; Circuit stability; Equations; Frequency; Impedance; Laboratories; Operational amplifiers; Senior members; Telephony; Voltage;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1953.274442