I need quick help this question please less than 30 minutes the answer tonains b pages, 3 questions and the duration is 120 minutes. 2s A4 cheat-sheets and calculators are allowed QUESTIONS he following current controlled signal attenuator circuit.เ is a DC current source that controls the attenuation factor. R.-4kf2 and k-4 mAN v™-osv ter the diode connected MSRT device.V" is a sinusoidal input signal. Coupling capacitors C-c, are very large they bibck lhe DC current and pass the AC...
Q1. For the cascade amplifier circuit shown in Fig (1): a) What are the functions of the capacitors C, C2 and C3? And what are the functions of the capacitors Cs and CE? b) What are the functions of the resistors RD and Rc? c) Draw the DC biasing circuits for each stage. d) Find loa, VGsa, VDs and gm for the JFET stage (you may use either mathematical or graphical methods) e) Calculate l, Ic, le and Ve for...
Q6. An amplifier circuit using an n-MOSFET is shown in Fig. Q6. The n-MOSFET has the following parameters: K'-1 mA/V2 and λ-0.02 w. v°' is a small signal AC voltage ource 8V 8V Vout Ra 2.56 mA Fig. Q6 (a) Calculate the DC gate voltage, Va. (b) Assuming that the n-MOSFET is operating in the saturation region and neglecting channel length modulation, calculate the threshold voltage, VrHN, given that the voltage drop across the de current sorce, Inas, has been...
esign the current divider circuit shown in Fig. 5 such that it produces the branch currents of 16.67 mA, 10 mA, and 6.67 mA, as indicated. Since a true current source is not available, it is implemented here as a 15-volt source in series with a 100 Ω resistor. It is therefore necessary to choose Rı, R2, and Rs so that the total supplied current is Is- 33.33 mA, and the three branch currents are as shown. Table I -...
Just question iv)plz n operational amplifier circuit is shown in Figure 3-1 +5 V 25 kQ 12.5 k2 5 kQ D, Figure 3-1. i) Show that when the input voltage V, is set at 0 V, diode Dz is off and diode Di has a current of 0.20 mA flowing through it. ii) Show that when v 1 V, Di is just beginning to stop conducting, whereas D2 is just beginning to start conducting. iii) Construct the VTC for this...
ng 3. a) Consider the circuit shown in Fig. 1 below, where the diode is assumed to be ideal. Find the average and RMS values of the output voltage, vo(t). A tua Fig.! VE) = A sin(wt) b) Consider the circuit shown in Fig. 2 below, where the diode is assumed to be ideal. Using your answer to part (a) above and basic properties of inductors in a switching circuit, write down the average value of the output voltage, Vo(t)....
The current flowing to the diode in the following circuit is 5 mA and the current flowing to the load is 20 mA. I(0) is always 25 mA and if the current flowing into the Load changes to 21 mA, what is the voltage (ΔV(out)) applied to both ends of the Load? -Use 'Small sinal model' -R(1)>>3r(d) Diode Bridge in Load Vout Diode Bridge in Load Vout
The ac equivalent circuit for an amplifier is shown in Fig. P13.59. Assume the capacitors have infinite value, R1 = 750 Ω, RB = 100 kQ, Rc = 62 kQ, and R3 100 kS2. Calculate the voltage gain and input resistance for the amplifier if the BJT Q-point is (40 μΑ, 10 V). Assume β,-100 and V,-75 V. 13.59 / 1 C. I Thévenin equivalent
Question 1: 7.33 +15V 1O MO R-200k 16n 7k MO 7.33 Figure P7.33 shows a discrete-circuit amplifier. The input signal is coupled to the gate through a very large capacitor (shown as infinite). The transistor source is connected to ground at signal frequencies via a very large capacitor (shown as infinite). The output voltage signal that develops at the drain is coupled to a load resistance via a very large capacitor (shown as infinite). All capacitors behave as short circuits...
V2 D2 LTL-307EE Q1 2N3904 Z1 R1 R2 Fig 01 The circuit shown in Fig 01 is useful to drive a load with a constant current independent of the supply voltage. In the given circuit load is considered as LED. Following data is given Maximum possible current through LED is 30 mA Vz of Z1 is 3.3V R1 is 1 kQ Follow the steps given below: a). Assuming voltage V1 is large enough to operate Z1 in its operating region...