5. (15 Points) a. (8 points) Calculate the value of R to provide an output voltage of 3 V. Assume that the diodes have 0.7V drop at 1mA. b. (7 points) If the diode current changes to 4mA, what is the new voltage drop across the four diodes?
5. (15 Points) a. (8 points) Calculate the value of R to provide an output voltage of 3 V. Assume that the diodes have 0.7V drop at 1mA. b. (7 points) If the diode current changes to 4mA, what is the...
Part IIl: Diodes The Ideal-Diode Model a) For the circuit below, find ID and VD for the case VDD 5 V and R 10 k2. Assume that the diode has a voltage of 0.7 V at 1-mA current. Use (a) iteration and (b) the constant-voltage-drop model with VD 0.7 V 홍Yo b) Design the circuit below to provide an output voltage of 2.4 V. Assume that the diodes available have 0.7-V drop at 1 mA. +10 V Vo Part IIl:...
4. In the diode circuit below diodes Day and Da2 are identical have a voltage of 0.7V at ImA current. The diodes Dbị and Db2 are identical and have 10 times the junction area of Dal. Also all diodes have n=2 and VI = 25mV. The circuit employs a supply current ISUPPLY=20mA. (a) Draw the i-v curve for diodes Da and D. Label axes and all relevant points. [8] (b) Find the value of Vout at nominal supply and no...
Problem 6 (20 points) Calculate the output voltage Vout and the diode current Id for (a) V=-3V and (b) V.=3V, using the piecewise linear model (ra=0.026 k 2 and V=0.7V). R=3 k22 W14 0.3Sin(ot)
1. (30 points) Diodes in the circuit below have the cut-in voltage V, -0.7 V. Find the output Vif a) (15 points) 7=1 mA. b) (15 points) 7 = 2 mA. Hint to immediately identify the operating mode (regime) of one diode: where does / flow? § 2 = 2 kB D {R = 5
4. Design a clamp circuit to clamp the negative extreme of a periodic input waveform of 10 sin(100πt)V to −5 V. Use 1 diode, 1 Zener diode, 1 resistor, and 1 capacitor of suitable values. Provide following minimum ratings of the selected components. (a) Diode - Maximum reverse voltage, peak forward current (b) Zener - Zener voltage, Zener current (c) Resistor - Resistance, power rating (d) capacitor - capacitance, Maximum voltage Assume a 0.6 V forward drop for all diodes...
R1= 12 K ohm R2= 12 K ohm rout= 1.2 K ohm For the circuit in Figure 1, assme that the voltage drop across the infrared emitter is 1.3 V. Determine the value of RE that will set the current through the emitter to a value within the range of 50 mA to 80 mA. For the circuit in Figure 1, assume Rx 10 kQ and Vs 5 V. Using the equation given in the introduction section, determine the value...
Ctri Question 3 (20 Marks) Lab 1-Zener Circuits and Applications Theory: Zener diode is designed to operate in reverse conduction. Zener breakdown occurs at a precisely defined voltage, allowing the diode to be used as a voltage reference or clipper. While Zener diodes are usually operated in reverse conduction, they may also be operated in cutoff and forward conduction. There are two different effects that are used in "Zener diodes". The only practical difference is that the two types have...
Question 21 The voltage drop across R2 = 7 V. Calculate the unknown value for R2. Vs = 13 V Enter your results in Ohms 0 2200 R1 R2 1000 R3 2200 R4 Question 22 Calculate the value of that will operate the lamp in the circuit below. E = 46 V Enter your results in Ohms 0. 1.5W 3V Lamp Question 23 Calculate the total resistance RT in the parallel circuit below. R1 = 6.10 Enter your result in...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
QUESTION 5 (15 points) a. You have a power supply which is a full-wave rectifier with a capacitor filter. It operates from the mains and provides an output of Voc-20 V with 20% ripple, when the load current is 2 A Calculate the maximum and minimum values of the output waveform of this power supply. b. Now you will design a series voltage regulator between the power supply described in part (a) and an electronic device operating at 12 VDC...