2. A silicon BJT is connected as shown in Figure 2. Assume that the absolute value of the
base-emitter forward bias is 0.8 V, the current transfer ratio ß is 50, and the collector cut off
current ICEO is approximately zero. The power supply Vcc=15V. (20%)
(a) Compute the base current Ib and the collector current Ib. (10%)
(b) Compute the collector-emitter voltage VCE. (2%)
(c) What is the collector saturation current? (3%)
(d) Specify Rb1 to establish VCE=5V. (5%)
+Vec
Rb1
80 k2
500
Vce
Rb2
80 KO2
Figure 2
Answers: 2
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2. A silicon BJT is connected as shown in Figure 2. Assume that the absolute value of the
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