Design a common-source MOSFET amplifier such that - Rg is a multiple of 10 - Id...
Design a common-source MOSFET amplifier such that
- Rg is a multiple of 10
- Id = 0.52 mA
- the amplifier input resistance is in the range of mega ohms
- | Avo | = 16.7 V/V
- RL = 20k
- Vsig has a 2kHz frequency
- Rsig = 400k, and is the input
and the MOSFET has:
Vt = 0.8V
k = 5 mA/V^2
VA = 80 V
Assume capacitors are shorted in the signal circuit and neglect channel length modulation in bias calculations
1. Draw designed amplifier circuit with value of DC voltage sources Rd and/or Rs and box values for Id, Avo, Rg, RL, and Vsig
2. Find the bias point of the amplifier
3. Find all DC node voltages
4. Draw signal circuit including signal source and load in the circuit
5. Find the values of gm and ro for your designed circuit
6. Find the overall voltage gain of the circuit (Vo / Vsig)
7. Calculate and sketch waveforms for the instantaneous (total) gate, drain and source node voltages, and drain current
Homework Answers
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Design a common-source MOSFET amplifier such that
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- Id...
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1.) 120 points] The parameters of n-channel enhancement MOSFET in the amplifier circuit below are: 2.042 mA/V2, İVMİ V: 2.4 V, Kn 150 V a) Find quiescent values: drain current İD, gate-to-source voltage UGS, and drain-to-source voltage UDS b.) Determine AC model parameters: gm and ro c.) Determine amplifier model parameters: Ri, Ro and Avo d.) Determine the output voltage vi across the load RL f 1 mVp
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1.) 120 pointsl The...
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1.) [20 points] The parameters of n-channel enhancement MOSFET in the amplifier circuit below are Ve = 2.4 V, Kn = 2.042 mA/V2, 1VMI = 150 V a.) Find quiescent values: drain current ip, gate-to-source voltage vGs, and drain-to-source voltage vps b.) Determine AC model parameters: gm and ro c.) Determine amplifier model parameters: Ri, Ro and Avo d.) Determine the output voltage vi across the load Rl if vs- 1 mVp SRC
Design the CS amplifier in Fig. L7.17(a) to achieve a small-signal gain of at least 4,--5 V/V. Use supplies of V+--K = 15 V, Rsig-50 Ω, RL-10 kQ, and R1R2 = 10 kQ, and design the circuit to have ID-1 mA and a DC voltage at the gate Vo = 0 V. Use Cc,-CC2-CS-47 μF. What is the expected DC voltage at the source of the NMOS? C1 sig V. Rs sig
Design the CS amplifier in Fig. L7.17(a) to...
*Note : MOSFET-2N7002 Parameter => Vt : 1.47V, kn = 0.048
A/V^2
1. Obtain [ the Voltage and current ] of [ each node and branch
] at DC bias point (operating point) in the common-source +
source-follower figure above.
2. Obtain the small-signal equivalent model of the figure above
at DC bias point , then obtain open-circuit voltage gain Avo, input
resistance Rin, output resistance Rout.
tran 0 100m 99m 0.001m ;op 0 100m 99m 0.001m VDD V1 +...
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