Why is the frequency of pulsating dc is more than actual alternating sine wave
why is the frequency of pulsating dc is more than actual alternating sine wave
Replies
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Jeffrey ArulrajPulsating DC signal has higher frequency can not be said just like that buddy
Do tell us the source of the pulsating DC signal if it is an SMPS output then yes
Other wise it is hard to tell -
soni.sapanFor sine wave it takes 0 to 2pie for comleting cycle but in pulsating DC its only takes 0 to pie for completing a cycle, so it only takes half time for pulsating DC to complete a cycle.
thats why pulsating DC has double frequency then Sine wave. -
Naga tejaok i have one doubt.for dc frequency should be nearer to zero. so for a pulsating dc the frequency should be between sine wave and pure dc. here it is greater than sine wave.can u explain
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Naga tejaa sine wave is conveted to pulsating dc.but the frequency is increased than the sine wave frequency.but for dc the frequency should be less than sine wave frequency know
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Jeffrey ArulrajNaga tejaok i have one doubt.for dc frequency should be nearer to zero. so for a pulsating dc the frequency should be between sine wave and pure dc. here it is greater than sine wave.can u explain
Both have the same solution DC never has frequencyNaga tejaa sine wave is conveted to pulsating dc.but the frequency is increased than the sine wave frequency.but for dc the frequency should be less than sine wave frequency know
Next pulsating DC has frequency not of it's own. The frequency is do the AC ripple present in the signal. When the ripple is removed using filter the frequency vanishes and becomes pure DC
This is similar to a super imposition of DC and an AC wave more or less this analogy holds good
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