Repeat the analysis example with place the analysis the same

For ro � 10RC,

(d) Av. (e) Ai. Io	EXAMPLE 8.3

	IE � (� � 1)IB � (121)(46.5 �A) � 4.34 mA 26 m V 2 6 m V		CE Emitter-Bias Configuration	349

(a) DC:		��470 k� � (121)0.56 k�20 V � 0.7 V

Zb � �(re � RE) � 120(5.99 � � 560 �)
� 67.92 k�

and	Zi � RB�Zb � 470 k��67.92 k� � 59.34 k�

Z R� � �� b (12 6 0 7 ) . ( 9 2 2� .2 k�
k�)

� �3.89

Solution

(a) The dc analysis is the same, and re � 5.99 �.

(a significant increase)

(e) Ai � �RB
�

� 119.82

350	EXAMPLE 8.5
350	EXAMPLE 8.5	Chapter 8

Over 10 Million Study Resources Now at Your Fingertips