The cut-in voltage of the diode shown in the circuit in Figure 1 is Vy = 0.7 V. The diode is to remain biased "on" for a power supply voltage in the range 4 < Vps < 10V. If R;=lkN and R2=2kQ, calculate the minimum diode current- R1 Vino Vout 1 kQ 2 ko D2 R2
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- How is a solid-state diode tested? Explain.a) To what value R must be adjusted in the following circuit to make IZ = 70 mA. Assume VZ =20 V at 65 mA and ZZ = 23 Ω. What is the Zener voltage at 70o C, if it has a positive TC of 0.08 %/oC.? b) Using a Complete diode model, find the diode current (ID), diode voltage (VD), and output voltage (Vo) for the diode circuit shown below. Given that: Vs = 20 V, RL=3 kΩ , Barrier Potential VF = 0.3 V , and r’d = 70 Ω. If the diode was reversed and IR = 200 µA, Determine the diode reverse voltage (VR)Since R1=4.51 Kohm, R2=1.19 Kohm R3=2.74Kohm R4=5.60Kohm VCC=23.00V and diode silicon in the circuit given in the figure, find the current passing through the diode in mA
- Given the schematic below, assume D1 and D2 are silicon with forward voltages of 0.7V. Find the following (with solutions) a) Conditions required wherein none of the diodes are conducting b) If both diodes are not conduction, what is Vo? Express in terms of Vi c) Plot the overall relationship of Vo and Vi in the coordinate system shown below. Remember, you are to plot the transfer characteristics of the circuit.2b) A regulator curcuit needs to be designed with an input power supply which has a nominal value of V_PS=20 V and can vary by ± %25 and nominal output voltage of 10 volts. For this purpose a zener diode is employed with specifications given; power rating of 1 W, 10V drop at Iz=25 mA, output load current is to vary between I(subscript L)=0-20 mA and zener resistance of r_Z=5Ω i) If the minimum Zener current is to be I_Z=5 mA, determine the required R_S ii) Determine the maximum variation in output voltage iii) Determine the regulation percentFor the half-wave rectifier circuit shown, the diode is not ideal and is modeled as an ideal voltage source of value Vf= =0.65V in series with an ideal diode. Vin= 2sin(2π10t) and R= 470Ω. What is the magnitude of the diode current at time t=60mst=60ms? 2- At what time between 0and T/4 seconds is the magnitude of the diode current equal to 2.66mA? Tis the period of Vin Enter your answer in milliseconds
- Q1: In this Zener diode regulator, the source voltage varies from 6 V to 14 V. Assume that the load current varies between 1 mA and 35 mA, and that the diode is an ideal 4 V Zener diode. What is the largest allowable resistance that will ensure the load voltage remains constant with variations in load current and source voltage? Please enter your answer to 3 significant figures. Q2: Given the circuit design for a Zener diode regulator in the Ques 1, what is the maximum power that will be dissipated by the Rs resistor? You are told that the source voltage Vs varies from 6 V to 11 V, the load current il varies between 2 mA and 45 mA, and the diode is an ideal 3 V Zener diode. You will need to recalculate the maximum allowable resistance Rs with your new values, as part of this question. Please enter your answer to 3 significant figures, and in Watts.For the ideal-diode clipper circuit given below, VS = 12.sinωt V. Determine the output voltage Vout and sketch this function. Remove the short circuit between points x and y, and replace it with a 2kΩ Resistor. Find the range of values of VS for; D1 and D2 are OFF D1 is ON and D2 is OFF D1 is OFF and D2 is ON Is it possible for both D1 and D2 to be ON?For the half-wave rectifier circuit shown, the diode is not ideal and is modeled as an ideal voltage source of value Vf= 0.65V in series with an ideal diode. Vin= 5sin(2π100t) and R =510Ω. What is the output voltage at time t=24mst=24ms? 2- For the same circuit as in Question 1, what is the output voltage at time t=35.4ms t=35.4ms? Enter your answer in volts 3- For the same circuit as in Question 1, what is the magnitude of the diode current at time t=12mst=12ms? Enter your answer in mA without units.
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