What are Power Transformers?
Power transformers are a magnetic component of a power supply circuit. Transformers play an essential role in ensuring your bedroom light will turn on when you flip the switch.
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Features
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A transformer is a device that will divert alternating current, AC, from one circuit to another using electromagnetic induction. The core of a transformer contains two or more coils which create an alternating magnetic field.
Power Transformer
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A power transformer is an essentially beefed up transformer. They still divert AC from one circuit to the next, but on a much larger field.
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Function
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Power transformers also change the amplitude of high frequency pulses to provide isolation between circuits. In order for a circuit to be complete, alternating as well as direct current needs to be supplied. Power transformers can not transfer DC, and that is why a rectifier is needed.
Rectifier
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As said above, power transformers must contain a rectifier circuit. The job of a rectifier circuit is simple: convert alternating current into direct current.
Considerations
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In order for power transformers to do their job effectively, they need to transform all the energy that is being pumped in instantaneously while retaining little to none of that energy. In order for this to happen, power transformers are equipped with power inductors. Power inductors absorb all the excessive energy that is present in the power transformers magnetic core.
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