What is switched mode power supply, Computer Engineering

Assignment Help:

Q. What is Switched Mode Power Supply?

SMPS is the unit into which electric supply from the mains is connected to your PC and this supplies DC to internal circuits. It is more efficient, more complex and less expensive than linear supplies.

SMPS performs in the following way:  The electric supply received is sent to a component known astriac which shifts it from 50 Hz to a much higher frequency (approximately 20.000 Hz). At the same time, employing a technique known as Pulse Width modulation, the pulse is varied to the requirements of the computer circuit. Shorter pulses provide lower output voltage. A transformer then decreases back the voltage to the correct levels and rectifiers and filters produce the pure DC current.

SMPS has two main benefits: They produces less heat since they waste less power and use less expensive transformers and circuits because they operate at higher frequencies. 

The power requirement of a PC relies on peripherals and motherboard in your computer.  Still in modern PCs, your requirement may not be more than 150-200 Watts.


Related Discussions:- What is switched mode power supply

Predictive modelling power, Another useful feature of an experts system ...

Another useful feature of an experts system is its predicative modelling power. The system can act as an information processing theory or model of problem solving in th

Explain internal organization of bit cells in a memory chip, Explain with n...

Explain with neat diagram the internal organization of bit cells in a memory chip. Memory cells are usually organized in the form of an array, in which every cell is capable of

Password, A phonetic password generator picks two segments randomly for eac...

A phonetic password generator picks two segments randomly for each six letter password. form is CVC. what is the total password population? 1> what is the total password population

Data structure, Process: pid start time end time priority t...

Process: pid start time end time priority timeslice list of CPU bursts list of IO bursts (the number of IO burst will always be 1 less than the number of CPU

What is the use of cache memory, What is the use of cache memory? The u...

What is the use of cache memory? The use of the cache memories solves the memory access problem. In certain, when a cache is included on the same chip as the processor, access

Write down the basic performance equation, Write down the basic performance...

Write down the basic performance equation? T=N*S/R T=processor time N=no.of instructions S=no of steps R=clock rate

Describe miscellaneous and privileged instructions, Q. Describe Miscellaneo...

Q. Describe Miscellaneous and Privileged Instructions? These instructions don't fit in any of above categories. I/O instructions: start I/O, stop I/O, and test I/O. Characteris

Explain about local area network, Q. Explain about Local Area Network? ...

Q. Explain about Local Area Network? Local Area Network (LAN):  It is privately owned communication systems that cover up a small area, say a complex of buildings or school. Le

Program in c, addition c program for token separation

addition c program for token separation

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