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(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.

(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)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Three parts are solved need only part 4  quick. 

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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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