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Transformer is the only device which is capable to stepup or stepdown an ac signal. That's why its used widely in ac supply.

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13y ago

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Does electrical transformer use a DC or AC source?

A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.


What equipment uses Nlb200050w1a ac adapter?

Transformer Power Supply


Does a transformer convert AC to DC?

No, a transformer does not change AC to DC. For this purpose there is a device known as a rectifier, and to transform it back to AC from DC you'll need an inverter. Transformers are only useful with AC due to the alternating waveform which induces a voltage in the secondary winding (when it is connected to a load).


The device that converts AC to DC to run the computer is called?

power supply


What type of voltage must be passed across a transformer?

A transformer must be connected to an alternating current (AC) supply of the correct voltage.


What is the difference between control transformer and Potential transformer?

Control transformer used only for control supply 110,220, 24,12V AC. But Potential transformer used voltage measurement purpose.


Why the winding resistance of transformer is not sufficent when it is used in dc supply?

It is.AnswerA transformer is designed to operate with an AC supply voltage, not DC -in fact, it cannot operate with a DC supply voltage.Opposition to the flow of alternating current is made up of resistance and reactance. Resistance depends upon the length, cross-sectional area, and resistivity of the transformer winding conductor. Reactance depends upon the inductance of the transformer winding and the frequency of the supply voltage.Because a transformer winding is highly inductive, its reactance is very much larger than its resistance, and is more than sufficient to limit the AC current to a value that will not overheat the winding conductor. However, if you supply the transformer with a DC voltage that is equivalent in value to its AC rated voltage, the low value of resistance will allow a very large DC current to flow -large enough, probably, to overheat the conductor insulation, possibly causing it to break down and cause severe damage to the transformer.


How many volts does a mini connector have?

Depends on use,supply,AC,DC .Voltage,transformer ???


Why will or won't a transformer operate on AC?

transformer will work on ac


Why do transformers work only work on an AC supply?

Transformers only work on ac supply because it principle is mutual induction. DC supply has constant magnitude whereas AC has alternating magnitude. so we can step up or step down current/voltage in transformer in ac only.


Is the power supply for a Digitech whammy II 9v or 12v I need the specs for the power supply?

whammy 2 specs. ps750 class 2 transformer Ac-Ac power supply input: 120vac 60Hz 12w output 9v AC 780mA


Why do you obtain more dc voltage than ac voltage in power supply design by using transformer?

You don't. Transformers only work with AC voltage. Their input will be an AC waveform, and their output will be an AC waveform. Other electronics are used to convert the stepped down AC waveform from the transformer to DC.