A transducers characterised by a voltage of 1V rms and a resistance of 1M ohm is available to drive a 10 ohm load. Sketch a diagram and answer the following:
If connected directly, what voltage and power levels result at the load.
Estimate the results of the problem if a unity gain buffer amplifier with (Avo=1 V/V, Ri>>Rs, and Rl>>Ro) is interposed between source and load.
A transducers characterised by a voltage of 1V rms and a resistance of 1M ohm is...
Consider the amplifier shown below where Ro = 1.2 KΩ and Avo = -125. The source has an internal resistance RS = 600 Ω and connected to the amplifier by a capacitor CS = 1 µF. QUESTION 1 Consider the amplifier shown below where Ro-1.2 KΩ and Avo-_125. The source has an internal resistance Rs-600 Ω and connected to the amplifier by a capacitor Cs 1 HF. a. Derive the mathematical expression to determine the half-power frequency due to Cs....
Exercise 12.13 Derive expressions for the voltage gain, input resistance, and output resistance of the common-gate amplifier shown in Figure 12.29, assuming that ra is an open circuit Answer The small-signal equivalent circuit is shown in Figure 12.30. A Rin 1/(gm 1/Rs); Ro = Rp. gmR/; +VDD С2 + RL Vo CL R + Vin v(t) -Vss W Ri Rp R 8mVgs Vo Rs Vin + v(t) Exercise 12.13 Derive expressions for the voltage gain, input resistance, and output resistance...
number 7 Z; = (1 + A)R. Give numerical values. 7. Repeat the calculations in Example 6.2 when the input device is a microphone with vs = 10 mV (rms) and source impedance Rs = 50 k 2. Draw a conclusion regarding the effectiveness of a buffer. 741 EXAMPLE 6.2 A pickup device has an internal impedance of Rs = 10 ks2 and pro- duces a voltage of vs = 2V. If it is to drive a chart recorder which...
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...
2. (30 points) A voltage source v, with Thevenin resistance Rs = 5k 2 is connected to a two-stage amplifier. A trans-conductance stage is connected to the source and have an input resistance Ril = 10k 12, a short-circuit trans-conductance gain Gmi = 50m A/V and an output resistance R1 = 50k 12. The second trans-resistance stage is connected to the first stage and to the load RL = 7k 12, and have an input resistance Ri2 = 25k 12,...
1.) 120 pointsl The parameters of n-channel enhancement MOSFET in the amplifier circuit below are: 2.042 mA/V2, 1 Val ½ 2.4 V, Kn 150 V a.) Find quiescent values: drain current i, gate-to-source voltage vGs, and drain-to-source voltage vDs b.) Determine AC model parameters: gm and ro c.) Determine amplifier model parameters: Ri, Ro and Avo d) Determine the output voltage Vl across the load RL ǐfv, 1 mYn +VDD GI〈 R ls R Mi RL 1.) 120 pointsl The...
A signal source with an open-circuit voltage of Vs = 2 mV rms and an internal resistance of 50 kΩ is connected to the input terminals of an amplifier having an open-circuit voltage gain of 100, an input resistance of 135 kΩ , and an output resistance of 4 Ω. A 4 Ω load is connected to the output terminals. Find Voltage gain Avs = V0/Vs Find voltage gain Av = V0/Vi Find current gain Ai Find power gain G...
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
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
100 1.5 0.27 5. 6 Pl. Consider the CB amplifier of Figure 1, for which Vcc-15 V, Rs-50 Ω, and RL-10 kQ. For the BJT, assume that B150, VBE.on0.7 V, and VcE,sat 0.3 V, and ignore the Early effect. For the other resistances, however, assume the same values as those you used for the Common-Emitter (CE) amplifier lab (disregard the value for RE2, as the resistor does not exist in the CB amplifier of Figure 1). Therefore, copy the same...