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It is a fundamental physical fact that Transformers can only work if they are fed with a changing or alternating current (ac).
They simply cannot work if they are fed with a constant direct current (dc). There is one type of transformer that can be used in a dc (direct current) circuit if it is "pulsed" dc. The most common application of this is the ignition coil in a vehicle. The coil operates on pulses of the 13.5 Volts dc of a vehicle's electrical system. Depending on the type of fuel and the type of ignition system the car uses, pulses of dc are fed to the ignition coil either from "contact breaker" points or from a solid state "ice" (ignition control electronics) box. Each 13.5 Volt dc "pulse" is stepped up by the ignition coil to generate the several thousand volts needed to "fire" the spark plugs via the distributor. As you asked this question you are obviously very interested in learning more about electricity and the various electrical components which have been invented, such as transformers, so why not go to your local library and find some books about Electrical Engineering to read, so you can learn more about this fascinating and exciting subject?
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoNo, not directly although transformers may be part of power supply design. A transformer converts AC to another AC voltage or provides AC isolation when the input and output voltages are the same.
Wiki User
∙ 13y agoNo. Transformers run only on AC. Placing DC across a transformer would overcurrent the device, blowing a fuse or causing damage.
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What happens if dc supply is connected to incomer of transformer?
If a DC supply is connected to the incomer of a transformer, you effectively have a short circuit, because the DC impedance of a transformer (actually, any inductor) is quite low. You will blow something.
Why transformer action can take place in DC circuit?
Not clear what your question is. First of all, circuits are not classified as DC and AC. Circuits are what they are, and you can apply either AC or DC to any circuit. However, considering a circuit that was designed only for use with DC applied. Still your question is unclear. What is transformer action? "Transformer Action" happens in a transformer.
How dc supply is applied to field coil in a brush less alternator?
Through a coupled inductor, similar to a transformer, but working on DC instead of AC.
Why the windings burn when transformer is operated in DC?
Transformers are not intended to be operated in DC. DC does not provide the continuously fluctuating current that a transformer requires in order to function. On DC, a transformer will act as a transient mode inductor, and settle out to a high current state, destroying itself.
How dc supply is given to transformer used in push pull amplifiers?
The dc is supplied via a centre-tap on the transformer. This ensures zero dc net flux in the transformer core, which enables a much smaller core to be used.
If DC is applied to the primary of a transformer is there any current in the secondary and if there is then whether ac or DC?
first, understand that a transformer is an AC DEVICE. it wont work on dc...
What happens if dc supply is connected to incomer of transformer?
If a DC supply is connected to the incomer of a transformer, you effectively have a short circuit, because the DC impedance of a transformer (actually, any inductor) is quite low. You will blow something.
Why transformer action can take place in DC circuit?
Not clear what your question is. First of all, circuits are not classified as DC and AC. Circuits are what they are, and you can apply either AC or DC to any circuit. However, considering a circuit that was designed only for use with DC applied. Still your question is unclear. What is transformer action? "Transformer Action" happens in a transformer.
Can you call any transformer as DC transformer?
No.it is not possible.as transformes action based upon induction principle it requirs varying flux.for dc the flux is constant.
Can you use any ho transformer for a ho train set?
As long as the transformer is capable of 12 Volts DC output, you can use any transformer with HO scale equipment.
How dc supply is applied to field coil in a brush less alternator?
Through a coupled inductor, similar to a transformer, but working on DC instead of AC.
How does a DC transformer work?
transformer cannot be worked on DC because as the dc is constant there will be no change of flux & may lead to shot circuit.
Who will not operate on DC?
Transformer
How do you make ac into DC in a ac transformer?
You can not change AC into DC using a transformer. A transformer changes the voltage levels. To change AC into DC, you would need a rectifier. To change that into smooth DC you need a capaciter and a voltage regulater
Can you use transformer for DC supply?
No. Only Transformer could not be used for DC supply.If yoy need to have DC out put,then rectifier unit required .
Why transformer can not be used in dc supply?
The transformer cannot be used in the DC supply because it keeps on alternating its current, whereas the DC supply current should be constant.
Why the windings burn when transformer is operated in DC?
Transformers are not intended to be operated in DC. DC does not provide the continuously fluctuating current that a transformer requires in order to function. On DC, a transformer will act as a transient mode inductor, and settle out to a high current state, destroying itself.
