The fixed-bias circuit of Figure 1 (a) is the simplest transistor dc bias configuration. The addition of emitter resistor to the dc bias of the BJT provided improved stability as shown in Figure 1 (b), known as emitter-bias configuration. a) Calculate IB , IC and VCE for the given of β = 50 and β = 100 for fixed-bias circuit as shown in Figure 1 (a). b) Repeat question (a) for the emitter-bias circuit as shown in Figure 1 (b). c) Give your comment based on the changes in Ic and VCE for question (a) and (b).
The fixed-bias circuit of Figure 1 (a) is the simplest transistor dc bias configuration. The addition of emitter resistor to the dc bias of the BJT provided improved stability as shown in Figure 1 (b), known as emitter-bias configuration. a) Calculate IB , IC and VCE for the given of β = 50 and β = 100 for fixed-bias circuit as shown in Figure 1 (a). b) Repeat question (a) for the emitter-bias circuit as shown in Figure 1 (b). c) Give your comment based on the changes in Ic and VCE for question (a) and (b).
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The fixed-bias circuit of Figure 1 (a) is the simplest transistor dc bias configuration. The addition of emitter resistor to the dc bias of the BJT provided improved stability as shown in Figure 1 (b), known as emitter-bias configuration.
a) Calculate IB , IC and VCE for the given of β = 50 and β = 100 for fixed-bias circuit as shown in Figure 1 (a).
b) Repeat question (a) for the emitter-bias circuit as shown in Figure 1 (b).
c) Give your comment based on the changes in Ic and VCE for question (a) and (b).
Transcribed Image Text:+ 15 V
+ 15 V
240kn.
2.2 k2
240 kn.
22.2 kn
+
V CE
V CE
BE
VBE
1 kn
(b)
(a)
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