(a) Determine Io. (b) When Q₁ is in the forward active region, what is the possible voltage range for vo? (c) Estimate the corresponding v, at the extreme values of vo. (d) For Q₁, determine values for ig₁ and VCE when vo = OV.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Three parts are solved need only part 4  quick. 

Plz do only part 4. 

Step 2: Calculate of IQ qnd range of Vo.
a)
b)
Voltage at point p
Vp
-5 + 0.7
Step 3: Continue
Now, Current Ip will
O- Vp
IK
Ip
0 +4.3
IK
Since, O₂ and A3 form current mirror
Io =
=
Range of Vo
Or, → operate in forward Active mode
(Vo)max
= 5
2
VI
VI
Ip
=
VI
=
=
-
- 4.3V
= 4.3mA
(Vo) max
When I will be ov, then Vo will be minimum.
to keep the tuin ON the O, at V₁ = OV,
(Vo) minimum
-0.7 V
VCE min
5- VCE Sat
5 -0.2
-0.7V < V₂ ≤ 4.8V
=
4.8V
c) The extreme value of Vo is 4.8V.
So, VI will at Vo
4.8V is
(Vo)max +0.7
4.3mA
2
5.5 V
4.8 +0.7
"
So
Transcribed Image Text:Step 2: Calculate of IQ qnd range of Vo. a) b) Voltage at point p Vp -5 + 0.7 Step 3: Continue Now, Current Ip will O- Vp IK Ip 0 +4.3 IK Since, O₂ and A3 form current mirror Io = = Range of Vo Or, → operate in forward Active mode (Vo)max = 5 2 VI VI Ip = VI = = - - 4.3V = 4.3mA (Vo) max When I will be ov, then Vo will be minimum. to keep the tuin ON the O, at V₁ = OV, (Vo) minimum -0.7 V VCE min 5- VCE Sat 5 -0.2 -0.7V < V₂ ≤ 4.8V = 4.8V c) The extreme value of Vo is 4.8V. So, VI will at Vo 4.8V is (Vo)max +0.7 4.3mA 2 5.5 V 4.8 +0.7 " So
Consider the class-A emitter-follower circuit shown in Figure Q3. Assume all transistors are matched
with VBE(on) = 0.7V, VCE(sat) = 0.2V, and VA = ∞o. Neglect base currents.
V+ = 5 V
ww
V10
R = 1 KQ
V = -5 V
2₁
IEL
te
ovo
R₁ = 1kQ2
(a) Determine Io.
(b) When Q₁ is in the forward active region, what is the possible voltage range for vo?
(c) Estimate the corresponding v, at the extreme values of vo.
(d) For Q₁, determine values for ig₁ and VCE when vo= 0 V.
Transcribed Image Text:Consider the class-A emitter-follower circuit shown in Figure Q3. Assume all transistors are matched with VBE(on) = 0.7V, VCE(sat) = 0.2V, and VA = ∞o. Neglect base currents. V+ = 5 V ww V10 R = 1 KQ V = -5 V 2₁ IEL te ovo R₁ = 1kQ2 (a) Determine Io. (b) When Q₁ is in the forward active region, what is the possible voltage range for vo? (c) Estimate the corresponding v, at the extreme values of vo. (d) For Q₁, determine values for ig₁ and VCE when vo= 0 V.
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