Why do we use transformer in a rectifier circuit?

Which transformer is used in rectifier?

While the use of the type of transformer in a rectifier depends on the voltage requirement or to meet desired operating conditions, a step-down transformer is used mainly to reduce the voltage.

Why transformer is used in circuit?

Transformers are employed for widely varying purposes. For example, a transformer is often used to reduce the voltage of conventional power circuits to operate low-voltage devices and to raise the voltage from electric generators so that electric power can be transmitted over long distances.

What are the two advantages of use of transformer in case of rectifier?

The transformer is less costly as it is required to provide only half the voltage of an equivalent center-tapped transformer used in a full-wave rectifier. Transformer utilization factor, in case of the bridge rectifier, is higher than that of a center tap rectifier.

How does a transformer rectifier work?

A Transformer Rectifier Unit (TRU) combines the functions of a Transformer and a Rectifier into one unit. In aircraft applications, the TRU converts the 120V AC power generated by the engine or APU generators or provided by a Ground Power Unit (GPU) to 28V DC power for use by various electrical components.

What is the function of transformer?

A transformer is an electrical device that trades voltage for current in a circuit, while not affecting the total electrical power. This means it takes high-voltage electricity with a small current and changes it into low-voltage electricity with a large current, or vice versa.

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How does a rectifier transformer work?

A Rectifier transformer is a special application transformer which includes diodes and thyristors in the same tank. Power electronic circuits that convert alternating current (ac) to direct current (dc) is called rectifier circuits.

Why transformer is not necessary in bridge rectifier?

The main advantage of the bridge rectifier is that it produces almost double the output voltage as with the case of a full-wave rectifier using a center-tapped transformer. But this circuit doesn’t need a center-tapped transformer so it resembles a low-cost rectifier.