What is SMPS,How does it works?

Question Posted / proch

4 Answers
14197 Views
Bharti, TCS, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What is SMPS,How does it works?..

Answer / k.prakashchandra

Switched Mode Power Supply.The working principle is
complicated. The voltage regulation is is obtained by
electronically switching elements like capacitors and
inductors off and on ,using transistors.

Is This Answer Correct ?

10 Yes

1 No

What is SMPS,How does it works?..

Answer / patel

switch mode power suply and it will work for without
interrupting changover the power

Is This Answer Correct ?

12 Yes

5 No

What is SMPS,How does it works?..

Answer / jigar bhatt

switched-mode power supply

SMPS converts the available unregulated ac or dc input voltage to a regulated dc output voltage. Input voltage is first rectified and filtered using a capacitor at the rectifier output. This unregulated dc voltage across the capacitor is then fed to a high frequency dc-to-dc converter. Most of the dc-to-dc converters used in SMPS circuits have an intermediate high frequency ac conversion stage to facilitate the use of a high frequency transformer for voltage scaling and isolation.
The high frequency transformer used in a SMPS circuit is much smaller in size and weight compared to the low frequency transformer of the linear power supply circuit.
The ‘Switched Mode Power Supply’ owes its name to the dc-to-dc switching converter for conversion from unregulated dc input voltage to regulated dc output voltage. The switch
employed is turned ‘ON’ and ‘OFF’ (referred as switching) at a high frequency. During ‘ON’ mode the switch is in saturation mode with negligible voltage drop across the collector and emitter terminals of the switch where as in ‘OFF’ mode the switch is in cut-off mode with negligible current through the collector and emitter terminals. On the contrary the voltage regulating switch.

Is This Answer Correct ?

7 Yes

2 No

What is SMPS,How does it works?..

Answer / mahantesh s k

SMPS - switched-mode power supply

This is used for D.C to D.C conversion.and also it will using for Ac to DC power conversion.

Is This Answer Correct ?

4 Yes

8 No

Post New Answer

More Electrical Engineering Interview Questions

How npn and pnp transistor works

0 Answers

What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

0 Answers

what is neutral plane shift?

1 Answers

what is mean by lookup table in microprosser.

1 Answers

in india,we use 230V,50 Hz,whereas many other countries use 110V,60Hz.what r d advs and disadvantages of each of them?

11 Answers

Why we have short circuit the secondary of the transformer

1 Answers

Please specify the parts of VCB&ACB

1 Answers

what is the effect of higher value of GD???

0 Answers VEPL,

what does the regenerative braking mean?and how it used for Dc motor? thanks.

2 Answers

what is the difference between MCB & MCCB

3 Answers

wt wil happen if a 120kv line is grounded

4 Answers

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

0 Answers

For more Electrical Engineering Interview Questions Click Here