Thursday, 10 July 2014

Can a transformer work with dc

A CHANGING magnetic fiel however, does . A normal transformer is not designed to work on DC voltages. These coils are made up of copper, and therefore have almost zero resistance. This principal is used in some DC -to- DC converter designs.


Basically transformer only using in device with AC(sinusoidal), using DC in Transformer will not make transformer work.

The principle of the transformer is induced magnetic field of the primary winding to the secondary winding.

This induction should change and continuous.

From , the free encyclopedia:A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. If the transformer is energized . First of all , transformer works on principle of electromagnetic Induction. Subhroneel Saha, works at Tata Consultancy Services, Kolkata. As DC has constant electric flux. Derivative of any constant is zero.


How does an AC to DC transformer work ? Instead primary coil will burn . Because of no change in direction and magnitude of the wave form. If DC was supplie there would be no current in the secondary coil. As the current in the primary . Thus we observe that, the basic function of the Transformer is not met. This is the reason, Transformer do not work with DC supply.


Well, so can we apply DC supply to the . The transformer core needs to be reset. The only trouble is, though many of our appliances are designed to work with AC, small-scale power generators often produce DC. The magnetic field flows through the iron core. The faster the voltage changes, the higher the frequency.


The lower the frequency, the more iron is required in the core for the efficient transfer of power. Since AC voltage cycles from positive to . Depending on your definition of dc transformer.

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