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SMPS stands for
1. Switched Mode Power Supply
2. Start Mode Power Supply
3. Signal Mode Power Supply
4. Store Mode Power Supply

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Correct Answer - Option 1 : Switched Mode Power Supply

The correct answer is Switched Mode Power Supply.

  • SMPS:
    • The full form of SMPS is Switched Mode Power Supply also known as Switching Mode Power Supply.
    • SMPS is an electronic power supply system that makes use of a switching regulator to transfer electrical power effectively.
    • It is a PSU (power supply unit) and is usually used in computers to change the voltage to the appropriate range for the computer.
    • An SMPS adjusts output voltage and current between different electrical configurations by switching the basics of typically lossless storage such as capacitors and inductors.
    • Ideal switching concepts determined by transistors controlled outside of their active state that have no resistance when ‘on’ and carry no current when ‘off.’
    • It is the idea why switches with an ideal function will operate with 100% output, that is, all input energy is provided to the load; no power is wasted as dissipated heating.
    • In fact, such ideal systems do not exist, which is why a switching power source can not be 100% proficient, but it is still a vital improvement in effectiveness over a linear regulator.

  • Benefits of SMPS:
    • The switch-mode power source is small in scale.
    • The SMPS is very lightweight.
    • SMPS power consumption is typically 60 to 70% which is ideal for use.
    • SMPS is strongly anti-interference.
    • The SMPS production range is large.
  • Limitations of SMPS:
    • The complexity of SMPS is very large.
    • The production reflection is high and its control is weak in the case of SMPS.
    • The use of SMPS can only be a step-down regulator.
    • In SMPS, the voltage output is just one.

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