What is SMPS,How does it works?

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

what is the difference between energy efficient and high efficiency motors

2 Answers  


DISCUSS THE SHAFT MOUNTED D.C. GENERATOR ,BASED ON EXCITATION SYSTEM IN ELECTRICAL SYSTRM

2 Answers  


why electron flow is opposite to current flow?

3 Answers  


draw singleline diagram of star to delta and dol starters

0 Answers   JCP,


If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

0 Answers  






Why the resistance grounding (NGR) is better than Solid grounding?

5 Answers  


How to connect frequency meter in metering circuit?(single phase and three phase frequency meter)

3 Answers  


Is there any problem ,if R-Y-B voltage is constant , but the air compressor taking one phase high current.what is possible causes.the said compressor is very new.(55kw).

4 Answers  


i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

0 Answers   TNEB Tamil Nadu Electricity Board,


I know the Capacitor value- 12.5KVAR, voltage 440V gas filled, then what is the formula for calculate the microfarad value for this 12.5KVAR capacitor

2 Answers  


why CT out put is 5 what ever the primary current.

2 Answers  


Which type of drive is advantageous AC or DC and why?

5 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)