The following Common Emitter (C.E.) amplifier is biased with a current source I. It has β = 100, VA = ∞, VT = 25mV, and rπ = 25kΩ. Draw the small signal equivalent circuit including the Hybrid-π with the βIb currentsource model. Label the input (Rin), output (Rout), and base (Rib) resistances. Find Rib, Rin, Rout, and the voltage gain (vo/vsig).
The following Common Emitter (C.E.) amplifier is biased with a current source I. It has β = 100, VA = ∞, VT = 25mV, and rπ = 25kΩ. Draw the small signal equivalent circuit including the Hybrid-π with the βIb currentsource model. Label the input (Rin), output (Rout), and base (Rib) resistances. Find Rib, Rin, Rout, and the voltage gain (vo/vsig).
Chapter1: General Information For Electrical Installations
Section: Chapter Questions
Problem 14R
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The following Common Emitter (C.E.) amplifier is biased with a current
source I. It has β = 100, VA = ∞, VT = 25mV, and rπ = 25kΩ.
Draw the small signal equivalent circuit including the Hybrid-π with the βIb currentsource model. Label the input (Rin), output (Rout), and base (Rib) resistances. Find Rib, Rin, Rout, and the voltage gain (vo/vsig).
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