What is power rating of transistor?
what is the power rating of a transister
Power transistor can conduct large amount of currents through it, more than small signal transistor. power transistor has a vertical structure and small signal transistor has horizontal structure.In power transistor quasi saturation region is present which is absent in the small signal transistor. In power transistor there is a inculsion of drift layer which is not there in the small signal transistor. Power dissipation is less in power transistor and it is more in small…
By way of rectifiers - which are diodes (allow current to flow in one direction only), coupled with other electronics used to smooth the AC wave. A simple design includes a rectifier, a power transistor, a zener diode in series with a small resistor to help keep the power transistor base voltage constant, and a capacitor on the output of the power transistor to further smooth the output from the transistor.