Changed the gate resistor to 10K. There is no difference in output voltage going from 470 to 10K as far as I can see. As I reduce the numbers of fans, my voltage raise from 9.3v to 12.49v. At 12.49v the only load is a LED and a resistor before the led.
3.19v of voltage drop for loading a Logic level gate power Mosfet!!
Problem solved.
Found an old piece of print and soldered the transistor part directly. Seems the voltage problem was related to my breadboard or maybe the thin wires. Now I got 11.5v, when all load is on.
3.19v of voltage drop for loading a Logic level gate power Mosfet!!
Problem solved.
Found an old piece of print and soldered the transistor part directly. Seems the voltage problem was related to my breadboard or maybe the thin wires. Now I got 11.5v, when all load is on.
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