Hi, so i have tried making a RGB controller using an arduino µcontroller, and 3 IRF540 mosfetts.
I have made this schematic:
what i forgot in the schematic, is that i have a 10k resistor from the gate to ground to pull it low, and the resistor is a 330 ohm resistor
so my problem, is this:
i apply power, and all the LED´s turns on, even if i directly connect a gnd lead to the gate of the mosfett´s nothing happen, the LED´s just keep on shineing. however, if i apply the +12 volts from the powersupply, the corrosponding color that is connected to that mosfet shines a tad bit brighter. enough to see which color it is.
what have i done wrong here? ran into the same problem once before, controlling a computer fan, and have only been working with BJT´s till now.
I have made this schematic:
what i forgot in the schematic, is that i have a 10k resistor from the gate to ground to pull it low, and the resistor is a 330 ohm resistor
so my problem, is this:
i apply power, and all the LED´s turns on, even if i directly connect a gnd lead to the gate of the mosfett´s nothing happen, the LED´s just keep on shineing. however, if i apply the +12 volts from the powersupply, the corrosponding color that is connected to that mosfet shines a tad bit brighter. enough to see which color it is.
what have i done wrong here? ran into the same problem once before, controlling a computer fan, and have only been working with BJT´s till now.
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