Transistor

With the emergence of transistors Darligtons and IGBT, its use in static converters has been reducing gradually: Today the bipolar transistors only compete with the MOSFETs in applications with low power and voltages above 400 or 500V because of its lower cost.

Anyway, it is important to know the device depending on the number of facilities still in operation that use it.

Therefore, it is sometimes used to connect "Darlington" where HFE total increased at the expense of a lower speed of shutdown and greater drop voltage direct Vce(sat).

The Darlington transistors that are built on a single semiconductor crystal are called Darlington monolithic.