Can someone help me with some suggestions? I thought maybe a relay, but I definitely need to run this at all ranges of current between full load and just a little bit so i think a relay won't be able to switch fast enough to give enough resolution on the duty cycle, no? So I think things get complicated when you want way more power. Now, though, I'm trying to make a basic electromagnet (use an Arduino to slowly turn it on & off using a changing duty cycle) and I'm burning these things, my Arduino, and my board up I think for 2 reasonsġ) I'd LIKE to run 12-24V at ~10Amps and the dissipation on these is 96W I tried running multiple of these in parallel but no luck eventhough they're supposed to be self-balancing as they get hotter.Ģ) This MOSFET gets stuck in the open phase i think if the duty cycle is too high, the 0 or 5V Arduino logic can't seem to turn off the MOSFET when the 12V & 8A is going through.
I love these- been using them w/ Arduino to drive multiple 12V LED strips. What the hell is wrong with these mosfets? They are really setting my projects back. I hooked them up properly, heat skined them. So when the voltage at the gate was zero, 6 amps were running through the mosfet. 40% of the current I was running through it. They are rated for 30 amps right? Well ran 20 amps through one, and after a few cycles. I had 2 left, and I was building a motor controller. Well 2 of them broke int hat case, they would not close the damn circuit! They leaked 10% of the current I was running through them. I had 4 left, and I used them for some bread board prototyping. All the mosfets started to leak current, well 4 of them I used for the inverter. I built a light duty inverter with them, pushing no more than 1 amp at 5 volts. A dollar for a 30 amp mosfet? Wow, that was a great deal. Well, These mosfets looked like a great deal when I first saw them.
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