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This problem is AC analysis problem. DC analysis is not needed to answer the question. A) If we assume that the peak voltage of Vbe must be less than 10 mV to avoid small signal violations determine the value of Rsig if Vi has a peak amplitude of 1 V and Is = 1mA. Hint: Don't forget r!! Answer: Rsig = B) If you did the DC analysis on this problem and calculated Vc = 50 mV and Vs = -100 mV what is the maximum amplitude of the output voltage while the circuit stays in active mode. Answer: Vo,max =.

This problem is AC analysis problem. DC analysis is not needed to answer the question. A) If we assume that the peak voltage of Vbe must be less than 10 mV to avoid small signal violations determine the value of Rsig if Vi has a peak amplitude of 1 V and Is = 1mA. Hint: Don't forget r!! Answer: Rsig = B) If you did the DC analysis on this problem and calculated Vc = 50 mV and Vs = -100 mV what is the maximum amplitude of the output voltage while the circuit stays in active mode. Answer: Vo,max =.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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This problem is AC analysis problem. DC analysis is not needed to answer the question. A) If we assume that the peak voltage of Vbe must be less than 10 mV to avoid small signal violations determine the value of Rsig if Vi has a peak amplitude of 1 V and Is = 1mA. Hint: Don't forget r!! Answer: Rsig =. B) If you did the DC analysis on this problem and calculated Vc = 50 mV and Vs = -100 mV what is the maximum amplitude of the output voltage while the circuit stays in active mode. Answer: Vo,max =, When you "verify" a mode of operation you will need to calculate all three voltages (Vc, Ve, VE for BJTS and VG, Vs, Vp for MOSFETS) and show the correct two conditions are satisfied. Assume Capacitors acts like open circuits at DC and short circuits for AC. > Assume the following: 5V o Beta = 100 O VBE = 0.7 o V: (Thermal) = 26 mV o Vr (Threshold) = 2V O VA = - o For MOSFET saturation mode: assume: lp = K(VGs-Vr)? (Assume K = 10 mA/V²). 5kn C2 01 C1 Rsig 1kn 10k Vi IIs :C3 1mA -5V
Transcribed Image Text:This problem is AC analysis problem. DC analysis is not needed to answer the question. A) If we assume that the peak voltage of Vbe must be less than 10 mV to avoid small signal violations determine the value of Rsig if Vi has a peak amplitude of 1 V and Is = 1mA. Hint: Don't forget r!! Answer: Rsig =. B) If you did the DC analysis on this problem and calculated Vc = 50 mV and Vs = -100 mV what is the maximum amplitude of the output voltage while the circuit stays in active mode. Answer: Vo,max =, When you "verify" a mode of operation you will need to calculate all three voltages (Vc, Ve, VE for BJTS and VG, Vs, Vp for MOSFETS) and show the correct two conditions are satisfied. Assume Capacitors acts like open circuits at DC and short circuits for AC. > Assume the following: 5V o Beta = 100 O VBE = 0.7 o V: (Thermal) = 26 mV o Vr (Threshold) = 2V O VA = - o For MOSFET saturation mode: assume: lp = K(VGs-Vr)? (Assume K = 10 mA/V²). 5kn C2 01 C1 Rsig 1kn 10k Vi IIs :C3 1mA -5V
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