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If a full-wave rectifier operates at a frequency of x Hertz, then the frequency of the output ripples in Hertz will be

If a full-wave rectifier operates at a frequency of x Hertz, then the frequency of the output ripples in Hertz will be Correct Answer 2x 

The correct answer is option 1) i.e. 2x 

CONCEPT:

  • Full-wave rectifiers: A full-wave rectifier is a rectifier circuit that converts alternating current to direct current, and allows both the positive and negative cycles of the AC cycle to pass through it using diodes.
    • Full-wave rectifiers use multiple diodes. A diode is used because a diode can conduct current only in one direction at a particular instance of time.
    • AC current can be represented as a waveform and a wave is said to complete one cycle when the wave pattern repeats. The frequency is associated with one complete cycle of a wave.

[ alt="10.10.2018.023" src="//storage.googleapis.com/tb-img/production/18/10/10.10.2018.023.PNG" style="height: 151px; width: 440px;">

  • From the figure, the output wave completes one cycle in half the time taken by input to complete one cycle.
  • Therefore, the output frequency in a full-wave rectifier is equal to 2 times the input frequency.

​EXPLANATION:

The given frequency of the input is x Hertz

The fundamental frequency of the output ripples = 2 times the input frequency = 2x Hertz.

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