ELECTRONIC 2 HOMEWORK 2 vin rs 1k VS SINE(0 10m 10k) AC 1 C1 10 GROUND...

 

Transcribed Image Text:

ELECTRONIC 2 HOMEWORK 2 vin rs 1k VS SINE(0 10m 10k) AC 1 C1 10μ GROUND VCC RB1 10k vb RB2 6k RC1 4k Q1 BJTHWN ve RE1 C2 2k \\ M1 NHW I=1u w=250u 11 GROUND 10m C3 10μ vout RY 200 For the circuit given above parameters given as VCC-10V, RB1=10k, RB2=6 KQ,RE1=2 kQ,RC1=4 kn, RY=200. Element parameters for Q1 transistor given as VBE=0.7V, BF=100, VA=50V; Element parameters for M1 transistor given as VTH=1V, uncox=50 μA/V2, λ=0.03 V-1. RY used as load resistance in the circuit. The internal resistance(rs) of the small signal source vs is rs=1 k. W=250μm and L=1 µm values are given for geometry of m1 transistor. The I1 = 10 mA current source is an ideal current source and the output resistance can be taken infinitely. According to the information given, answer following questions. We chose the connecting ELECTRONIC 2 HOMEWORK 2 and bridging capacitor with infinite value in the lesson. Due to the LTspice part, 10 μF, which is a very large value, was used. a) Find the DC working points (DC voltages and currents) of the circuit by hand calculation. You can find values using simple engineering approaches. (10 point) b) Determine how many floors the circuit is. Indicate the configuration of each floor. (Partner emitter, common collector etc.)(10 point) c) Why the bulk-body terminal of the M1 NMOS transistor was withdrawn to "GROUND" link.(10 point) d) Find the small signal voltage gain (vout/vin) of the circuit by hand calculation. (20 point) e) Show DC working points using LTSpice. (10 point) f) Obtain the AC gain graph using Spice. Here in the AC option for simulation you can choose type of sweep:decade, number of points:10, start frequency 1k, stop frequency 100k. So you won't see the effect of capacitors. (10 point) g) Deactivate the C2 bridging capacitor. Repeat option f. How and why is the change happened.Explain ?. (10 point) h) What is the role of the M1 transistor in its amplifier structure? Does it bring profit? If does not bring why might it be used? (10 point) i) By giving a sinusoidal signal at 10 kHz frequency and 10 mV amplitude as input signal Perform "transient simulation. Check the signs at the points Vb, Vc, Ve and the exit sign in the circuit. Comment briefly. (10 point). ELECTRONIC 2 HOMEWORK 2 vin rs 1k VS SINE(0 10m 10k) AC 1 C1 10μ GROUND VCC RB1 10k vb RB2 6k RC1 4k Q1 BJTHWN ve RE1 C2 2k \\ M1 NHW I=1u w=250u 11 GROUND 10m C3 10μ vout RY 200 For the circuit given above parameters given as VCC-10V, RB1=10k, RB2=6 KQ,RE1=2 kQ,RC1=4 kn, RY=200. Element parameters for Q1 transistor given as VBE=0.7V, BF=100, VA=50V; Element parameters for M1 transistor given as VTH=1V, uncox=50 μA/V2, λ=0.03 V-1. RY used as load resistance in the circuit. The internal resistance(rs) of the small signal source vs is rs=1 k. W=250μm and L=1 µm values are given for geometry of m1 transistor. The I1 = 10 mA current source is an ideal current source and the output resistance can be taken infinitely. According to the information given, answer following questions. We chose the connecting ELECTRONIC 2 HOMEWORK 2 and bridging capacitor with infinite value in the lesson. Due to the LTspice part, 10 μF, which is a very large value, was used. a) Find the DC working points (DC voltages and currents) of the circuit by hand calculation. You can find values using simple engineering approaches. (10 point) b) Determine how many floors the circuit is. Indicate the configuration of each floor. (Partner emitter, common collector etc.)(10 point) c) Why the bulk-body terminal of the M1 NMOS transistor was withdrawn to "GROUND" link.(10 point) d) Find the small signal voltage gain (vout/vin) of the circuit by hand calculation. (20 point) e) Show DC working points using LTSpice. (10 point) f) Obtain the AC gain graph using Spice. Here in the AC option for simulation you can choose type of sweep:decade, number of points:10, start frequency 1k, stop frequency 100k. So you won't see the effect of capacitors. (10 point) g) Deactivate the C2 bridging capacitor. Repeat option f. How and why is the change happened.Explain ?. (10 point) h) What is the role of the M1 transistor in its amplifier structure? Does it bring profit? If does not bring why might it be used? (10 point) i) By giving a sinusoidal signal at 10 kHz frequency and 10 mV amplitude as input signal Perform "transient simulation. Check the signs at the points Vb, Vc, Ve and the exit sign in the circuit. Comment briefly. (10 point).

Answer rating: 100% (QA)

a Calculate the De opera ting Pointa of the Cir Cuit Find out Point Couiscent Point P ... View the full answer