| A Thyristor is a semiconductor that has four layers and is primarily needed to handle a large amount of power. It can be on or off but it can also be used to regulate power using a phase angle control. This works very much like a dimmer switch by adjusting the angle input to thus control the output. As a Thyristor can be turned off by adjusting the direction of the current they are not very useful for applications that use low power. Similarly as they can only conduct power in the one direction they are of no use when a current has to be conducted to and from certain devices. |
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