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

Define sr flip flop - sr latch with nor gate, Define SR Flip Flop - SR latc...

Define SR Flip Flop - SR latch with NOR Gate? The SR Flip flop neither is a circuit with two cross-coupled NOR gates or two cross-coupled NAND gates. SR

What is an arithmetic processor, Q. What is an arithmetic processor? A ...

Q. What is an arithmetic processor? A distinctive CPU necessitates most of the control and data processing hardware for implementing non-arithmetic functions. As the hardware c

What do you mean by keyboard touch, Q. What do you mean by Keyboard Touch? ...

Q. What do you mean by Keyboard Touch? When employing a keyboard the most important factor is the feel of keyboard it implies that how typing feels on that specific keyboard.

Describe the object modeling notations, OBJECT MODELING NOTATIONS: BASIC ...

OBJECT MODELING NOTATIONS: BASIC Concepts A system is the collection of subsystems which organised to accomplish a purpose and described by a set of models from variou

What are the structural notations, What are the Structural Notations Th...

What are the Structural Notations These notations comprise static elements of a model. They are considered as nouns of UML model that could be conceptual or physical. Their ele

Connectivity options accessible to internet subscribers, What are the diffe...

What are the different connectivity options accessible to Internet Subscribers? Explain in detail. Internet Connectivity Options: Internet access is perhaps one of the ma

Define deadlock, Define deadlock? Deadlock is a condition, wherein proc...

Define deadlock? Deadlock is a condition, wherein processes never finish executing and system resources are tied up, preventing another job from beginning. A process requests r

Illustrate the advantages of encapsulation, Advantages of Encapsulation ...

Advantages of Encapsulation You can also delay the resolution of the details until after the design.  You can keep your code modular.

Explain about control memory organization, Q. Explain about Control Memory ...

Q. Explain about Control Memory Organization? One of the simplest ways to organize control memory is to organize micro-instructions for different sub cycles of machine instruct

First in first out method, The First In First Out method assumes items of s...

The First In First Out method assumes items of stocks are issued in the same order as they are received. Thus the goods received first are assumed to be the first to be issued .Any

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