Most of these power supplies use a transformer to step down the voltage ... designs of increasing complexity which first puts out a basic transformerless power supply, using a series capacitor ...

If you’ve ever wondered why something like a radio or a TV could command a hefty fraction of a family’s yearly income back in the day, a likely culprit is the collection of power transformers ...

before electrical power leaves a power station – it is transferred at high voltages by using 'step-up' transformers to increase the voltage to around 275,000 V before electrical power enters ...

What is an electromagnet? The motor effect - Higher Fleming’s left hand rule – Higher Electric motors – Higher Design and use of transformers - Higher ...