Hi, I have been building a circuit that utilises a 555 timer to switch a tip120. The whole system is 12v.
is it possible to safely attach 12v to the base of this transistor to allow 12v to travel through the collector and emitter?
it has to run a load of 1amp.
I so what would be the current limiting resistor to use on the base?
At the moment i am using 470Ω and it seems to be working fine but not sure for how long..
I have looked at all the calculations and am still getting my head around it all.
thanks in advanced
is it possible to safely attach 12v to the base of this transistor to allow 12v to travel through the collector and emitter?
it has to run a load of 1amp.
I so what would be the current limiting resistor to use on the base?
At the moment i am using 470Ω and it seems to be working fine but not sure for how long..
I have looked at all the calculations and am still getting my head around it all.
thanks in advanced