I've buyed some RGB-Led Strips common cathode. And now i like to control them from my Arduino.
Because they are common cathode strips i need to control them with a pnp-transistor, right? So, i've buyed three IRF5303 Mosfets.http://www.redrok.com/MOSFET_IRF5305_-55V_-31A_6mO_Vth-4.0_TO-220.pdf
My Problem is how to control this Mosfets from the Arduino?
When connect 12v + to the drain and the + from the led to source the led is on. but how can i use the p-channel mosfet as a switch to turn off the led's.
thanks in advanche
ps: sorry for my bad english...