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When AC full wave is rectified into DC by using bridge rectifier .The DC do not actually behave like an ordinary DC and the DC has a constant value .In fact, it is in pulsating form.This is known as Pulsating DC.
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What is frequency of dc?
You can say DC voltage has a frequency of zero Hz.Because it is unidirectional in nature (may be positive or negative)
What is the difference of DC and pulsating DC?
DC: constant current in the forward directionPulsating DC: An AC signal which has it's negative components blockedA: The terminology applies to a VALUE of DC being interrupted by its absence periodically or random
What is the Difference between frequency converter and frequency inverter?
frequency is genrally cycle per second, and frequencies may be of a dc nature or ac , devices which convert dc frequency in to an ac frequency are frequency converters and devieces which convert ac frequency in to dc frequency are frequency inverters. because in terms of power electronics, devices which convert ac to dc are called converters, and devices which convert dc in to ac are called "inverters" 'mehboob hunzai" I'm a engineers in this devices, the frequency inverter is convert AC to AC but with variable frequency output, means the frequency & voltage are adjustable; The frequency converter can convert DC to AC, like 24VDC to 220VAC and also the frequency is adjustable. One most important thing is the out power of frequency inverter just can be used for controlling AC motor, while frequency converter can be treated as normal power supply as our daily using power grid. "zhuge fs"
What is the function of a commutator in DC generator?
All types of generators induce EMF in sinusoidal wave form. (A.C.) In a D.C. generator the function of a commutator is to convert A.C. EMF into D.C. The commutator rectifies the output that is the alternating current so as to produce unidirectional alternating current (pulsating DC). This reverses the negative polarity current to a positive one so as the output is a pulsating DC.
Is DC signal is periodic?
Yes DC is periodic with zero frequency........and undefined fundamental time period To........
Do transformer works on pulsating dc?
If the input is pulsating DC, then the output will be pulsating DC. It will not be shaped the same, but it will be close, depending on the frequency and rise and fall time in comparison with the inductive reactance of the transformer.
Do transformers work on DC supply?
No, unless you have a pulsating DC
What component of a motor changes induced AC voltage into a pulsating DC?
its commutator..which converts ac produced by and motor to pulsating dc ... more the commutator divide more accurate dc..means less pulse in dc
Is welding transformer a frequency changing transformer?
Not really. Frequency in is frequency out, unless there is some conversion circuit in between, such as a motor-generator set or some kind of inverter. You may (and should) notice, however, that a typical welding transformer is rectifying three phase AC to DC, using a full wave rectifier. This results in a pulsating DC voltage where the ripple frequency is 360hz.
Why use capacitor in circuit?
To smooth the output of the pulsating DC.
Why you use filters in your circuit?
we generally use filters to smooth the sharp curves of DC component we get when we rectify AC components the pulsating Dc is not desirable to a no. of devices. These filters are used to make the pulsating DC to a stable one . To be more clear a pulsating DC is viewed as a sum of DC component and AC component these filters actually block the AC components and retain the DC component . so, mainly capacitors and inductors are used to obstruct or pass the dc components respectively
Why capacitor used in rectifier circuit?
To smooth the output of the pulsating DC.
What is the function of a rectifier diode?
A rectifier can convert AC to pulsating DC.
How do you conver ac power into pulsating DC What devices you need?
rectifier circuit convert ac to dc signal
What is transistor series regulator?
voltage regulator is a component to convert pulsating DC into constant DC.
What device converts dc current to ac current?
A "Rectifier" converts AC current to pulsating DC current.
Does a pulsating DC contains ac components?
A: As a DC source change state rapidly this variation is consider an AC component
