FAQ

Why is a SMPS used?

57 Published by admin Jul 07,2018

Power supplies are mainly categorized as linear power supplies and switched mode power supplies.

In a linear power supply, the input voltage from AC mains is first stepped down using transformer.Stepped down voltage is then rectified and filtered using a capacitor. This unregulated dc voltage across the capacitor is finally given to linear regulator which converters it into regulated DC voltage as shown in the following figure.

In switched mode power supply (SMPS) input voltage from AC mains is directly rectified and filtered using a capacitor. This unregulated dc voltage across the capacitor is then given to a high frequency DC to DC converter which converters it into regulated DC voltage as shown in the following figure.

The usage of a transformer at high frequency (>20 kHz) in SMPS instead of using it directly at 50/60Hz as in linear power supply drastically reduces the size of a transformer which in turn decreases weight and size of power supply. This is the reason behind light weight and compact size power adapters such as mobile, laptop chargers.

Moreover, an efficiency of SMPS is typically more than 80% which is very high as compared to linear power supplies as in linear power supplies, current passes through switch operating in an active region (larger voltage drop)and hence it results in high power dissipation (lower efficiency) unlike switch operating in the saturation region (lower voltage drop) in SMPS. This also makes the operation of SMPS possible with a wide range of input voltage.

The Final School Essay Producing Corporations Deceive

The Primary Knowledge of Educational Essay Simply writing Services Our rates are very affordable ...

Do you like ? 40

Read more

Homework Newspaper Essays Could Possibly Be A great time for the whole family

If You Happen To Review Hardly Anything Else In these days, Look At This Claim on Research Docume...

Do you like ? 35

Read more

Selecting No-Fuss Advice Of Best Mail Order Bride

A fake postal mail order brides company can be spotted simply. Most times these websites offer a...

Do you like ? 34

Read more

What You Should Do About Essay Writing Service Starting in the Next 20 Minutes

Essay Writing Service - the Conspiracy Essay writing is just one of the vital components of educa...

Do you like ? 36

Read more

What Is So Fascinating About Essay Proofreading Service?

The important problem happens when the technical guys are unable to spell out the technicalities ...

Do you like ? 37

Read more

Ghost-writer Kosten Manual

Hier ist, Was ich Darüber Weiß, Ghost Writer Kosten Sie können Kosten sparen, wenn Sie haben eini...

Do you like ? 30

Read more

Possible Risk Signals on Customized Phrase Paper You need to Be aware Of

What Has to be Performed About Custom Phrase Paper When coping with diverse subjects simultaneous...

Do you like ? 23

Read more

Der 30-Sekunden-Trick für die Bachelor-Thesis zu Kaufen

Was Bedeutet der Bachelor-Thesis zu Kaufen, Bedeuten? Für mich ist die eine Seite und einen Satz-...

Do you like ? 36

Read more