Ask Question, Ask an Expert


Ask Electrical & Electronics Expert

problem 1:

a) Draw the circuit of a half-wave-rectifier and find the ripple factor, % regulation, efficiency and PIV.

b) Compare the performance of Inductor filter and capacitor filter.

problem 2: With appropriate diagrams, describe the working of centre-tapped full wave rectifier. Derive expressions for VDC, IDC, Vrms and Irms for it

problem 3:

a) Describe the working of Bridge rectifier with required sketches and parameters.

b) Describe the relative advantages and disadvantages of all the rectifiers.

problem 4:

a) Define the given terms of a rectifier and filter:

•    Ripple Factor.
•    Regulation.
•    Rectification Efficiency.
•    Form Factor.

b) What is the ripple factor if a power supply of 220 V, 50 Hz is to be Full Wave rectified and filtered with a 220µF capacitor before delivering to a resistive load of 120Ω? find out the value of capacitor for the ripple factor to be less than 15%.

problem 5:

a) Derive expressions for ripple factor of a Full Wave Rectifier with and without a capacitive filter.

b) find out the average and RMS load currents, TUF of an unfiltered centre tapped Full Wave Rectifier specified below.

Input voltage to transformer = 220 V/50 Hz.
Step down ratio of centre tapped transformer = 4:1(Primary to each section secondary).
Sum of transformer secondary winding in each secondary segment and diode forward resistance = 100Ω.
Load resistance, RL = 220Ω.

problem 6:

a) Define the term Ripple factor and form factor. Establish a relation between them.

b) Describe the need of a bleeder resistor in an L – section filter used with a Full Wave filter.

c) find out ripple factor of an L – section choke input filter used at the output of a Full wave rectifier. Capacitor values of the filter are given as 10 H and 8.2 µF correspondingly

problem 7:

a) List out the advantages and disadvantages of Bridge type Full Wave rectifiers over centre tapped type Full Wave rectifiers.

b) The secondary voltages of a centre tapped transformer are given as 60V-0V-60V the total resistance of secondary coil and forward diode resistance of each section of transformer secondary is 62Ω. find out the following for a load resistance of 1 KΩ.

•    Average load current
•    Percentage load regulation
•    Rectification efficiency
•    Ripple factor for 240 V/50Hz supply to primary of transformer.

c) What is bleeder resistance in L – section filters? 

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M93504

Have any Question? 

Related Questions in Electrical & Electronics

Consider the problem of performing system identification as

Consider the problem of performing system identification as shown previously in Figure 9.49. Suppose the system to be identified is the following IIR filter. Write a MATLAB program that uses the FDSP toolbox function f l ...

Assume an image uses a palette of size 8 out of the table

Assume an image uses a palette of size 8 out of the table used by JPEG (GIF uses the same strategy, but the size of the palette is 256), with the combination of the following colors with the indicated level of intensitie ...

Approximate using a number of terms of your choice through

Approximate (using a number of terms of your choice) through the three forms of Fourier series expansion the periodic signal that is depicted in the following figure Each time, a. Plot the approximate signal in time of t ...

For an ltid system specified by the equationa find the

For an LTID system specified by the equation a. Find the amplitude and the phase response. b. Find the system response y[n] for the input x[n] = cos (0.5k - (π/3)).

1 a rectangular block of concrete 3 ft times 3ft times 6 in

1. A rectangular block of concrete 3 ft × 3ft × 6 in. has its 6- in. side half buried at the bottom of a lake 23 ft deep. What force is required to lift the block free of the bottom? What force is required to maintain th ...

1 what is the laplacian of a scalar what is its expansion

1. What is the Laplacian of a scalar? What is its expansion in Cartesian coordinates? 2. State Poisson's equation. 3. Outline the solution of Poisson's equation for the potential in a region of known charge density varyi ...

Clculate the surface integral of the vector function f

Calculate the surface integral of the vector function, F = xe 1  + ye 2 , over the portion of the surface of the unit sphere, S : x 2  + y 2  + z 2  = 1, above the xy-plane, i.e., z > 0.

Derive the expressions for the velocity distribution and

Derive the expressions for the velocity distribution and for the pressure drop for a Newtonian fluid in fully developed laminar flow in the annular space between two horizontal, concentric pipes. Apply the momentum theor ...

1 implement the 2-to-4 decoder using 7404 not an 7808 and

1. Implement the 2-to-4 decoder using 7404 (NOT) an 7808 (AND) chips on your breadboard. 2. Implement the 2-to-4 decoder circuit with a 74139 chip on your breadboard. 3. Implement a 1-to-2 decoder in Logisim. Implement t ...

1 for the force field f x2ay find the approximate value of

1. For the force field F = x 2 ay, find the approximate value of the line integral of F from the origin to the point (1, 3, 0) along a straight line path by dividing the path into ten equal segments. 2. For the force fie ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro