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Pages:  2. I'd like the circuit to be as simple as possible. Anything else I need? I've seen some circuits out there but I'm unsure why they have more components. Quote from: cosmos on Dec 24, , pm. So what's the resistor for? Also, how do you get 10Volts to turn it on. For switching purpose the threshold voltage is never worth considering, you must always checkout Rds on at the Vgs you are intending to use.
Fair enough. Got a correct one on order. Thanks for the help all. Happy Holidays! So, I'm seeing a fair amount of circuits drawn with a resistor parallel with the gate to ground, such that there is a direct connection from the output pin of the arduino to the gate, with the resistor going from this wire to ground.
Does this achieve the same effect? I was planning to go from the output pin to the resistor to the gate like suggested in series. Any thoughts? BulletMagnet83 Guest. I think the gate-to-ground resistor is there to pull the gate low and keep it there unless something drives it high on purpose, to prevent accidental or unwanted switching. Could be wrong Quote from: BulletMagnet83 on Jan 05, , pm.
Quote from: retrolefty on Dec 24, , pm. Gentlemen may prefer Blondes, but Real Men prefer Redheads! That is why I stated Quote. Thanks for the help to get here. All the power comes then from one 24VDC wall outlet supply The problem is the pull down resistor doesn't seem to work.
If I disconnect the Arduino output from the Gate , the motor will run, albeit at about half speed. If I tough a ground pin to the top of the resistor, it stops.
I measured about 2 volts across the resistor. So, when I connect everything and flip my 24V power switch, the motor starts turning until the Arduino is fully powered, then everything runs fine. So, I get about 1 second of motor turning I'm not asking for at startup. Any ideas what might be going wrong. The resistor is 10k.
Soldering isn't expert quality, but thinks seem to be where they should checking continuity.
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IRF MOSFET Power Transistors