(a) State one possible reason why the diodes have different knee voltage values. 2. Figure A.1 shows I-V characteristics of two diodes, namely A and B. Diode A has UTM higher dynamic resistance than diode B. 5 UTM U UTM Ip UTM TM 3 UTM UTM O UTM UTM UTM UTM & UTM 03 TM UTM 0.68 VD Figure A.1 State one possible reason why the diodes have different knee voltage values. 5 UTM & UTM M 3 UTM (b) Based on Figure A.1, identify the knee voltage of UTM (c) Draw with complete labelling an equivalent circuit that represents the circuit in UFigure A.2. Consider practical diode model. TM 5 UTM 5 UPde BE UTM & UTM & UTM 1 ΚΩ Diode B 5 UTM O UTM UTM & UTM & UTM 1.5 V 5 UTM UT 5 UTM 3 V 5 UTM O UTM Figure A.2 M G UTM 5 UTM 5 UTM & UTM 5 UTM UTM

(a) State one possible reason why the diodes have different knee voltage values. 2. Figure A.1 shows I-V characteristics of two diodes, namely A and B. Diode A has UTM higher dynamic resistance than diode B. 5 UTM U UTM Ip UTM TM 3 UTM UTM O UTM UTM UTM UTM & UTM 03 TM UTM 0.68 VD Figure A.1 State one possible reason why the diodes have different knee voltage values. 5 UTM & UTM M 3 UTM (b) Based on Figure A.1, identify the knee voltage of UTM (c) Draw with complete labelling an equivalent circuit that represents the circuit in UFigure A.2. Consider practical diode model. TM 5 UTM 5 UPde BE UTM & UTM & UTM 1 ΚΩ Diode B 5 UTM O UTM UTM & UTM & UTM 1.5 V 5 UTM UT 5 UTM 3 V 5 UTM O UTM Figure A.2 M G UTM 5 UTM 5 UTM & UTM 5 UTM UTM

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...

See similar textbooks

Similar questions

How is a solid-state diode tested? Explain.
What is CEMF?
What is the difference between a diode and rectifier?
The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where R1 and R2 are the resistances at temperatures T1 and T2, respectively, and is known as the temperature coefficient of resistance. If a copper wire has a resistance of 55 at 20C, find the maximum permissible operating temperature of the wire if its resistance is to increase by at most 20. Take the temperature coefficient at 20C to be =0.00382.
The diode current in a p-n junction is modeled exponentially (given below.) When the p-n junction is polarized with 0.7V and 0.75V, the currents flowing through the diode are again measured on the basis of 1.36 mA and 7.20 mA. Accordingly, what is the ideality factor? (Note: Take the thermal voltage as mV)
Assuming the practical model, what PIV rating is required for the diode? The transformer is specified to have a 12 Vrms secondary voltage for the standard 110 V across the primary. (2nd Approximation)
Zener voltage, VZ = 6.1V and incremental resistance, rz = 0 a) Determine the value of Ri such that the Zener diode remains in breakdown if the load current varies from IL = 20 to 200 mA and if the input voltage varies from VI = 8.6 to 10V. Assume IZ(min) = 0.1IZ(max). b) Determine the power rating required for the Zener diode and the load resistor. c) If the position of Zener diode were changed to be in forward bias region, will the voltage regulator still work properly? Justify your answer
In a 1-phase full wave bridge rectifier with Vs = Vm sin ωt, with R load & ideal diodes. The expression for the average value of the output voltage is 2Vm/π Select one: True False
A diode whose internal resistance is 20 ohms is to supply power to a 1000-ohm load from a 110V(rms) source of supply. Calculate the peak load current, dc load current. and determine the percent regulation from no load to the given load. a.) Peak Load Current= 120.8mA; DC load current=25.5mA b.) Peak Load Current= 133.3mA; DC load current=29.4mA c.) Peak Load Current= 144.3mA; DC load current=34.7mA d.) Peak Load Current= 152.5mA; DC load current= 48.5mA
3. It is required to design a full-wave rectifier circuit using the circuit shown below to provide an average output vol tage of10 V. find the required turns ratio of the transformer. Assume that a conducting diode has a voltage drop of0.7 V. The ac line vol tage is120 Vrms.
A schematic design of a full-wave bridge type power supply is given below. Provide the appropriate values for the inductors, diodes, capacitor and resistors, such that the output DC voltage is 6.2 V and the max. output power for the load resistance is 20 mW (percentage error for output voltage and output power is 2%). AC voltage source: Amplitude=311.13, Freq=60, DC offset= 0. For the rectifier part, choose diodes with an appropriate PIV rating. Show all the formulas and computations involved in acquiring the values for the inductors, diodes, capacitor and resistors. In choosing your Zener diode, consider the output voltage and the output current. Note that the output current should be the minimum Zener current. For the value of the series resistor RS, choose a lower value for less ripple but always consider the required output voltage. The ripple voltage peak-to-peak value should be less than or equal to 1% of the required output voltage. Use the formula below for choosing the value…
A silicon diode has a maximum allowable junction temperature of 150degree Celsius. Find the maximum allowable power dissipation at 25 degree Celsius ambient temperature if the diodes thermal resistance is 0.4 degree Celsius per watt.