Answer to Question #136491 in Electrical Engineering for Rakibul

Question #136491

Show that the voltage gain of Emitter Follower is less than unity.


1
Expert's answer
2020-10-05T09:48:00-0400

Voltage gain is


If we look at the emitter follower circuit, according to Kirchhoff's voltage law we can write:


Substitute and get:


But why is that? Because for semiconductors,



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