I've seen many tutorials on how to wire up 5050 LEDs with some MOSFETs, but almost all tutorials I've seen are showing the output of the MOSFET connected to ground through a 10k resistor, however from what I've read about transistors in general and from what I've seen on another tutorial, shouldn't the resistor be connecting the input from the Arduino to ground?Here is a diagram to demonstrate the first method I talked about:And what I think makes more sense:Is there a correct way of wiring this up? And if so, why?Sorry if I missed something, thank you!
Hi,However this diagram has the 10K in the wrong place;Tom... PS. Can I suggest you stop looking at Fritzy picture and convert to proper schematics.
Hi,Putting a resistor in series with the gate is another thing you can do.The gate of the MOSFET acts like a capacitor, when you PWM or pulse it, there is a current pulse that occurs as you increase frequency, this resistor limits the current pulse magnitude to protect the Arduino output.So if you like , certainly place a 220R or 470R resistor in the gate wire.Tom..