Design a voltage regulator circuit such as shown in Figure P2.21 so that
a.
The value of the input resistance, Ri.
Answer to Problem D2.25P
The value of resistance
Explanation of Solution
Given:
In the circuit,
Evaluating the
Evaluating the value of
Evaluating the value of
Substituting
Substituting
Substituting
Therefore, the value of resistance
b.
The source regulation and the variation in the output voltage.
Answer to Problem D2.25P
The source regulation is 4.44% and the variation in the output voltage is
Explanation of Solution
Given:
In the circuit,
The voltage
Evaluating
Evaluating the
For no load condition evaluating the value
Evaluating the value of
Substituting
Evaluating the value of
Evaluating the value of
Substituting
Evaluating the source regulation:
Therefore, the source regulation is 4.44% and the variation in the output voltage is
c.
The variation in the output voltage and the load regulation.
Answer to Problem D2.25P
The load regulation is
Explanation of Solution
Given:
In the circuit,
The voltage
The load resistance
For
Evaluating the value of
Evaluating the value of
When,
Applying Kirchhoff s current law to determine the current:
Evaluating the value of
Evaluating the load regulation:
Therefore, the load regulation is
Want to see more full solutions like this?
Chapter 2 Solutions
MICROELECT. CIRCUIT ANALYSIS&DESIGN (LL)
Additional Engineering Textbook Solutions
Principles Of Electric Circuits
Electric Circuits (10th Edition)
Engineering Electromagnetics
Fundamentals of Electric Circuits
Principles and Applications of Electrical Engineering
Fundamentals of Applied Electromagnetics (7th Edition)
- For the circuit shown in the Figure, if the diodes are silicon diodes with VD(on)=0.7 V, and VIn=50 sin wt V, V1 =7 V and V2 =13 V, then the value of VOUT (p-p) is: R1 D, D2 VIN VOUT vi E v2= Ca. 19.4 V Ob. 17.4 V Cc. 15.4 V Cd. 21.4 Varrow_forwardPower supply circuit is delivering 0.5 A and an average voltage 20 V to the load as shown in the circuit below. The ripple voltage of the half wave rectifier is 0.5 V and the diode is represented using constant voltage model. The smoothing capacitor value is equal to 220V rmsh soHz} VL-DC =20V 0.01 F 0.02 F 0.0167 F None of the abovearrow_forwardConsider the Zener diode circuit shown in Figure. The Zener Breakdown Voltage (Vz) is 5.6 V at Iz= 0.1mA. Zener resistance is rz= 10 0. What is Vo without load (RL= ) ? R= 0.5 ko Vo R Vps= 10 Varrow_forward
- (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 UTMarrow_forwardIn the figure given we have u(t)=10. cosot [V]. We assume the diodes and the A-meter (A) to be ideal. A u(t) a) Plot the waveform of the current flowing through the A-m in scale. b) What is the reading of the A-m, if it is moving-coil type? c) What is the reading of the A-m, if it is moving-iron type? d) Calculate the power factor of the WHOLE structure. R1 1 R2 102arrow_forwardFor the circuit shown in the Figure, if the diodes are silicon diodes with Vp(on)=0.7 V, and VIN=50 sin wt V, V1 =6 V and V2 = 16 V, then the value of VouTP-p) is: R, D VaN Vout v1事 2章 Oa. 25.4 V Ob. 27.4 V Oc. 29.4 V Od. 23.4 Varrow_forward
- A- If V, is a sinusoidal voltage with Vm = 40 V, and V= 15 V. Plot the waveform of the output voltage in each of the following clippers circuits assuming ideal diodes. B- Repeat part (A) if the diodes are silicon diodes. R R R (a) (b) (c) (d)arrow_forwardConsider the circuit shown in Figure 2. The cut-in voltage of each diode is . Let and assume both diodes are conducting. Determine if this is a valid assumption and explain your answer. And calculate the values of IR, ID, Ip2, and V.. Rj =1.7 kQ ww VB =1 V D1 Dz R2D 4 kQ Figure 2arrow_forwardThe following figure shows a Zener diode regulator designed to hold 5.0 V at the output. Assume the Zener resistance is zero and the Zener current ranges from 2 mA minimum (2x) to 30 mA maximum (IZM). What are the minimum and maximum input source voltages for these currents? Vs = ? R₁ W 560 02 Vz +5.0 Varrow_forward
- Q1/Consider the circuit in Figure with a transformer of 10:1 transformation ratio and the diodes are silicon. a) What type of circuit is this? (b) What is the total peak secondary voltage? (c) Find the voltage value across the resistor (d) Sketch the voltage waveform across RL (e) What is the PIV for each diode? D3 D 120 V Pisez) Vpouo D D 10 kn lleeearrow_forwardPower supply circuit is delivering 0.5 A and an average voltage 20 V to the load as shown in the circuit below. The ripple voltage of the half wave rectifier is 0.5 V and the diode is represented using constant voltage model. The smoothing capacitor value is equal to 220V ams 5OHZ İL-DC =05A RL VL-DC =20Varrow_forwardQ1 Assume that each diode has a turn-on voltage 0.7V in the circuit shown in Figure Q1. By using the constant voltage drop model: 1kN D1 D2 2kN 4k2 6V 3V 4V Figure Q1 a) Show that it is not possible that D1 is on and D2 is off. (Hint: show a contradiction) b) Show that both D1 and D2 are on.arrow_forward
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,