The circuit shown in Figure 7.27(a) has parameters V + = 10 V , V − = − 10 V , R S = 0.5 kΩ , R E = 4 kΩ ,and R C = 2 kΩ .Thetransistor parameters are: V B E (on) = 0.7 V , V A = ∞ , and β = 100 . (a) Determine the value of C E such that the low−frequency 3 dB point is f B = 200 Hz . (b) Using the results frompart (a), determine f A . (Ans. (a) C E = 49.5 μ F , (b) f A = 0.80 Hz )
The circuit shown in Figure 7.27(a) has parameters V + = 10 V , V − = − 10 V , R S = 0.5 kΩ , R E = 4 kΩ ,and R C = 2 kΩ .Thetransistor parameters are: V B E (on) = 0.7 V , V A = ∞ , and β = 100 . (a) Determine the value of C E such that the low−frequency 3 dB point is f B = 200 Hz . (b) Using the results frompart (a), determine f A . (Ans. (a) C E = 49.5 μ F , (b) f A = 0.80 Hz )
Solution Summary: The author explains that the value of the collector current can be calculated as lI_C=V+-
The circuit shown in Figure 7.27(a) has parameters
V
+
=
10
V
,
V
−
=
−
10
V
,
R
S
=
0.5
kΩ
,
R
E
=
4
kΩ
,and
R
C
=
2
kΩ
.Thetransistor parameters are:
V
B
E
(on)
=
0.7
V
,
V
A
=
∞
, and
β
=
100
. (a) Determine the value of
C
E
such that the low−frequency 3 dB point is
f
B
=
200
Hz
. (b) Using the results frompart (a), determine
f
A
. (Ans. (a)
C
E
=
49.5
μ
F
, (b)
f
A
=
0.80
Hz
)
b) Derive a block diagram model for the RLC series circuit shown in
Figure Q1, relating input voltage Vin to output voltage Vout derived
across the inductor. Your answer should identify the state
variables, list the governing equations, and clearly show the
direction of flow of signals in the block diagram.
R
+
Vin(~
C
Figure Q1
0.000
Vout
eeeeee
t=0
Y. Co) = 15V
Ye C4)
0,25MF
R
In the above circuit, thie switch closes at t= 0. The
capacitor is charged to
voltage
ISV initially. Find the
capacitor
for the following cases:
Ca) R= 8.5k
(6) R= 4k
() R= 1k
* plot the waveforms
for each
Cuse
www
Assume the passive sign convention. Consider the current waveform.
-1
daptive
SYNC
i(1) (A)
2
10
-2-
1
2
3
- r(s)
Determine the voltage across a 2.4 F capacitor. (You must provide an answer before moving on to the next part.)
The voltage across the 2.4 F capacitor is
--
V.
Q Search
****
1/0
ceciet
JA
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