Switched mode power supply , Electrical Engineering

Assignment Help:

Switched Mode Power Supply  (SMPS)

Switching mode power  supply converts an unregulated DC voltage  to a regulated DC  output  voltage . SMPS  stands  for switched mode  power supply. A  switched  mode power supply is  a power supply that provides the use of switches that are in one of two states, ON of OFF. In  such a device  power handling  electronic  components  are continuously switching ON or OFF  with high frequency in order to provide the transfer of electric energy via energy storage  components. The  advantage of switched  mode  power supply  is that the switch dissipates very little power in either of these two  and power conversion can  be accomplished with minimum  power loss and high efficiency. Because of the critical nature of power supplies  in all  equipment this approach  improves both  performance and reliability of  the total system  at no  additional cost.

 A switch  mode  power  supply circuit is  versatile. It can be used  to produce  multiple  dc outputs  using a circuit  such as the fly back  converter to step down  an unregulated dc input voltage to produce a regulated c output  voltage  using a circuit known as buck converter or step down SMPS to step up an unregulated dc input voltage to produce a regulated  dc output voltage suing a  circuit known as boost converter or step up SMPS, to step up or step done an  invert the input dc voltage  and to  switch mode  power supply is a widely used circuit nowadays and it is used in  as system such as a computer television receiver battery charger etc. The  switching frequency is usually above 20KHz so that the  noise produced by it is above  the audio range. It is also used to provide a variable dc voltage to armature of a dc motor  in a variable speed drive. It is used in a high frequency unity power factor circuit.

This types  of regulator can  be classified  into PWM  switch  mode ( square mode ) and resonant  switch  mode  ( sine wave).

There are four  basic topologies of PWM switch  mode  regulators or converters .

a.Fly  back converter

b.Buck  converter

c.Boost  converter

d.Buck boost converter


Related Discussions:- Switched mode power supply

Traffic light display, Traffic Light Display Design a three color LED sy...

Traffic Light Display Design a three color LED system with the following times for each LED: Duration of Green signal : 16s Duration of Yellow signal : 1s Duration of R

Evaluate the efficiency of embedded systems, Questions: a) One common ...

Questions: a) One common characteristic of Embedded Systems is that they need to be dependable. Name and describe any three aspects which encompass dependability. b) Name

#titl4 bit binary addere.., Ask question #Madvantages of 4 bit binary adder...

Ask question #Madvantages of 4 bit binary adder inimum 100 words accepted#

Find the frequency domain characteristics, This question is about linear fi...

This question is about linear filtering concepts using the built in filtering functions (it is not about edge detection methods). Load the MRI image of Q4 above and perform the

What is meant by polling, What is meant by polling? Polling or device p...

What is meant by polling? Polling or device polling is a process which recognizes the device that has interrupted the microprocessor.

Scr, What is finger voltage in a scr?

What is finger voltage in a scr?

Concept of flux density, We can illustrate the direction and strength of a ...

We can illustrate the direction and strength of a magnetic field by means of drawing 'flux lines'. These have arrows to show the direction of the magnetic field at any point and th

Determine the remaining voltages and currents, Q. Some element voltages and...

Q. Some element voltages and currents are given in the network configuration of Figure. Determine the remaining voltages and currents. Also calculate the power delivered to each el

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd