A shortage of transformers is causing delays to power projects everywhere, holding trillion-dollar industries hostage—and ...

The transformer in the diagram above is a step-down transformer – there are fewer turns on the secondary coil than on the primary coil. Type of transformer Size of output voltage Number of turns ...

This transformer steps up the voltage by reducing the current. Step-down transformers are used to decrease or 'step down' voltages. These are used when voltages need to be lowered for use in homes ...

But before it can be used to charge your phone, the high-voltage power has to go through a series of step-down transformers that bring electricity to your home at about 100 or 200 volts.