Q5:a) In the regulator circuit of Figure ,Determine Rext if the maximum internal regulatorcurrent is to be 250 mA.b) Using a 7824 voltage regulator and a 10 2 load, how much power will the externalpass transistor have to dissipate? The maximum internal regulator current is set at500 mA by Rext-c) Show how to include current limiting in the circuit of Figure . What should the valueof the limiting resistor be if the external current is to be limited to 2 A?d) Using an LM317, design a circuit that will provide a constant current of 500 mA to aload.xext15 VoRext7809OVOUTFigure

You have posted multiple question, so according to Bartleby guidelines, we are supposed to answer…

Answered: a) In the regulator circuit of Figure ,…

Engineering

Electrical Engineering

a) In the regulator circuit of Figure , Determine Rext if the maximum internal regulator current is to be 250 mA.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

Q: Using a circuit diagram, describe the operation of linear shunt regulators

Q: Explain the difference between the modulator and demodulator blocks and explain the terms…

A: Up-conversion is a converter it mixer a device that convert to analog signal a low frequency to a…

Q: Q.4. A single-phase half-wave-controlled converter is operated from a 120V, 50HZ supply. Load…

A: For single-phase half-wave controlled rectifier with R-Load,…

Q: Explain the effect of increasing the filter capacitance on the output voltage in the halfwave…

A: The effect of increasing the filter capacitance on the output voltage in the halfwave rectifier and…

Q: A step down one-quadrant topology DC-DC converter is driving a DC motor with constant current of…

A: DC-DC converter will transfer the DC power from one circuit to another circuit at the required…

Q: a) In given regulator circuit, zener voltage is 4.2V and zener power is Pw is 105mW. Calculate R1…

Q: List the Advantages and Disadvantages of Dual Slope ADC’s?

A: Advantages of dual slope ADC 1. Linearity is very high. 2. High resolution can be obtained. 3.…

Q: 17.7 Determine the output voltage for the series regulator shown below:

A: Given Data: Vref = 2.4 V R2 = 5.6 k-ohm R3 = 2.2 k-ohm

Q: For a single-phase Ac-Ac Converter with unidirictional phase control, find the output dc voltage,…

A: Given data V = 120 sinwt Vm = 120 R = 10 Ohm Delay = 0 The circuit looks like

Q: Problem: If the no-load output voltage of a regulator is 15.5 V and the full-load output is 14.9 V,…

Q: Draw Zener regulator circuit to obtain regulated DC voltage 6.8 V. Considering input DC voltage in…

Q: Draw zener regulator circuit to obtain regulated DC voltage 6.8v . considering input DC voltage in…

A: Given: Supply voltage, Vs=10-30V Load resistance, Rs=10kΩ Zener regulator circuit to obtain…

Q: Q6. Specification/Range of Power Supply:

Q: If the no load output voltage of a regulator is 15.5 V and the full load output is 14.9 V, what is…

Q: In given regulator circuit, zener voltage is 4.2V and zener power is Pw is 105 mW. Calculate R1…

A: The voltage regulator is a circuit which maintains constant output voltage when input voltage varies…

Q: 1- Draw a one-phase bridge type Full Wave Uncontrolled AC/DC converter circuit, explain the working…

Q: If the no-load output voltage of a regulator is 15.5 V and the full-load output is 14.9 V, what is…

A: Given, No-load output voltage (Vnl)= 15.5 V Full-load output voltage (Vfl)= 14.9 V

Q: Q9. Draw Zener regulator circuit to obtain regulated DC voltage 6.8 V. Considering input DC voltage…

Q: For the circuit shown below, sketch the DC and AC load lines and determine the operating point…

A: Given circuit is shown below Load line : The line which is drawn on output characteristics of a…

Q: (B) / For a step-down DC-DC converter (chopper), if the DC input voltage =150V, load resistance…

A: In this question , we will find average voltage , RMS voltage and efficiency for given step down…

Q: II. In a 220 Vrms, 60 Hz. Source, determine the following values: a) Trigonometric equation b) V…

Q: 2.31 If the no-load output voltage of a regulator is 15.5V and the full-load output is 14.9v, what…

A: Sol:-Given data,No load output voltage(VNL)=15.5Vfull load output voltage(VKL)=14.9 Vwe have,

Q: discuss on the importance of active filter in electronic system and elaborate more the current…

A: The signals at the output may be required to have only components of certain frequency. There are…

Q: 6-If the collector resistance is shorted,the ac output voltage will a-Decrease. b-Increase. c-Remain…

A: 1. Generally in in transistor there will be a collector resistance which is connected between…

Q: Draw a one-phase bridge type Full Wave Uncontrolled AC/DC converter circuit, explain the working…

Q: c) A buck converter with constant frequency peak current mode control has Vs = 28V, V, = 20V, L =…

Q: Q1: Draw the d.c load line for the circuit shown in figure. NO SIGNAL Vce 12.5 V www

Q: before. Design an astable multivibrator using 555 timer for generating a rectangular waveform of…

A: IC 555 can be used as Astable multivibrator. given Duty cycle D=70 % frequency, f =2 kHz

Q: What is the function of the IC regulator

A: The function of IC voltage regulator is provide constant output voltage irrespective of change in…

Q: Discussion 1- Draw the circuit diagram of 555 and mention the construction of this chip? 2- How to…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 6. Explain the effect of increasing the filter capacitance on the output voltage in the half- wave…

Q: c) Explain the difference between the modulator and demodulator blocks and explain the terms…

A: Difference between modulator and demodulator: In the communication system, modulation and…

Q: 1- Define voltage regulator ? what is its main job?

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Consider the capacitor-filter rectifier circuit as shown in Figure 1. The input is a single-phase…

A: There is nothing mentioned about the diode , so we will take the diode as ideal one, i.e no voltage…

Q: What is the advantage of using a transistor zener regulator circuit instead of a given regulator…

A: Advantage of using a transistor zener regulator circuit instead of a given regulator circuit:

Q: Q9. Draw Zener regulator circuit to obtain regulated DC voltage 6.8 V. Considering input DC voltage…

A: Input DC voltage range =10V to 30V Load resistance RL=10 Kohm Regulated voltage VZ=6.8 V

Q: Draw and explain in own words the circuit diagram for improved seriest voltage regulator

Q: Q.6/ Modify the sawtooth generator in figure below so that its peak-to-peak output is 4V. Is it a…

A: Given: The given circuit is,

Q: Q.4. A single-phase half-wave-controlled converter is operated from a 120V, 50HZ supply. Load…

A: Given R=10 ΩVrms=120 Vf=50 Hz nowV0avg=12π∫απVmsinωtdωtV0avg=Vm2π-cosωtαπV0avg=Vm2π1+cosα

Q: Draw a phase bridge type Full wave uncontrolled AC / DC converter circuit, describe the operating…

A: The full wave uncontrolled AC/DC converter circuit is simply a full wave bridge rectifier. Instead…

Q: If the no-load output voltage of a regulator is 24.8V and the full-load output is 23.9V, what is the…

Q: A basic regulator has an 8.5V zener diode of 0.5 W power and a filter voltage of 32VDC, determine…

A: A basic regulator has an 8.5V zener diode of 0.5 W power and a filter voltage of 32VDC, determine…

Q: 1. As performed, state the differences of a shunt and series voltage regulator circuit.

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Concept explainers

Differential amplifier

There are two amplifying stages with common degeneration in a differential amplifier.

Question

Q5:
a) In the regulator circuit of Figure ,Determine Rext if the maximum internal regulator
current is to be 250 mA.
b) Using a 7824 voltage regulator and a 10 2 load, how much power will the external
pass transistor have to dissipate? The maximum internal regulator current is set at
500 mA by Rext-
c) Show how to include current limiting in the circuit of Figure . What should the value
of the limiting resistor be if the external current is to be limited to 2 A?
d) Using an LM317, design a circuit that will provide a constant current of 500 mA to a
load.
xext
15 Vo
Rext
7809
OVOUT
Figure

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

3. Write down which transistor structure each curve characteristic belongs to in the figure. Ip -VGS -VGS +VGs (c) VGS (b) (a)
4 For the transistor shown in below figure, Calculate the value of R, that will just make the transistor work as closed switch. Hence Bpc= 80, VBE = 0.7V, VCE(sat) = 0.2V, Vcc= 12V, Rc= 2.7KN. la) Calculate the In and I.. Vcc RB Rc |b) Calculate Rp- B'
A 4.7 zener diode is connected to the base resistor. The left side of the resistor sits at about 12V. The right side of the biasing resistor is connected to the Zener and npn transistor. The Zener bias is 5mA. The base current needed is 80uA. What is the appropriate resistor for this circuit? (In kohms) I
Q5(a) Figure Q5(a) shows a basic series voltage regulator circuit. VIN VOUT RREF Q1 U1 R $20 k2 Di R2 30 k2 Figure Q5(a) (i) Calculate the output voltage, VoUT if VIN = 50 V and voltage drop across D, = 6.2 V. (ii) Illustrate a circuit diagram for overload protection between transistor Q1 and the load. (iii) Based on the answer in Q5(a)(ii), calculate the overload current ILmax). (b) Figure Q5(b) shows a voltage regulator. +35 V LM 317 +Vout R1 Vref 220 2 Iref C3 C1 TR2 TADJ C2 R2 5 kn Figure Q5(b) (i) Determine the maximum and minimum output voltage for the voltage regulator in Figure Q5(b), if IADJ = 25 µA and Vref = 0.9 V. (ii) Determine the output voltage of the regulator if R2 is set to 4 kN.
What is the role of resistor R3 in getting the low bias current we are obtaining out of the Widlar source? I don't really know the importance of R3 when looking at the figure. Is it because it controls the amount of current flowing through the transistor?
Design a collector to bias circuit for the specification given below. Vcc=13 volt Vce=5 v β =98 Ic= 5ma
Problem5: For the common base circurt shown in figure find I. and VCB. Assume transistor is Silicon (a-0.98) Ic Rp= 1.5 ko Rc= 1.2 kn VEE = 8 V. Vcc= 18 V
The output is out-of-phase with the input in a. a common emitter circuit b. a common base circuit c. a common collector circuit d. more than one of the above
For the MOSFET shown in Figure Q2d, VGs (off) = -6V, IDss = 10.5 mA and Vps = 11V. Determine, d) i) What is the type of MOSFET and the amplifier configuration? ii) What is the value of the drain resistance, Rp? 15V VDD RD Q1 LRG 9MO Figure Q2d
Q6:A) A transistor dissipates 50W in an ambient temperature of 60°C.The thermal resistance are exc-0.5 the junction temperature without a heat sink. Determine the thermal resistance of the heat sink to avoid the junction exceeding 170°C. °CW¹,0a-4°CW.Determine 5% single polver supply
A Bipolar junction Transistor with curreat amplification factor being 100, Input Base current is 50μA. Collector voltage is 10 V and biasing voltage being +20 V. Find followings a. Collector current b. Resistance (R1) c. Collector voltage , Emitter voltage , Base Voltage & Collector-Emitter Voltage.
An NPN silicon transistor having a nominal ß of 100 is to be used in a CE configuration with Vcc= 15 V. The Q point is to be Ic = 4mA and VcE = 12V . Now design the circuit diagram.