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Great work man! Looks awesome
It's in the zip file on the last page of the instructable
That's an amazing PCB for a beginner. Heck, that's an amazing PCB for a pro. Have you made any frequency response measurements?
Layered Lasercut LoudspeakerView Instructable »
Thanks, fixed it! That's a big difference :)
Going for the AutoDesk drone I see? I wish you luck, you have my vote :) Nice ible
Begrijp ik, stuur maar een PM via de Instructables site
Thanks for the feedback, I added some lines to the intro post
Yeah I know, that would effectively half the resistance of the positive trace but I think the mosfet is already the bottleneck here. What do you mean with ''cross hair solder tail"? The negative side of the mosfet is tied to the top ground plane, which is stitched with the bottom ground planes with a lot of via's. This gives the lowest resistance possible.Especially for multi-cell systems a microcontroller is the way to go. My next board will be a battery protector for 2-6S lithium, so I can use those cheap RC packs in my projects.
I used DIPTrace for pcb schematic/layout. You can order them using Seeedstudio or Elecrow (about 15$ for 10pcs with standard shipping)
Nederlander inderdaad :) Thanks!
I see what you mean, I might have accidently uploaded an early version of the code. It should go through a while loop which loops while systemstate=1, in the loop it checks if both the button is pressed and the voltage is above the treshold. At the end of the routine it should check if the switch is low, if yes: systemstate=0 (breaks the while loop) after which it writes the mosfet low and enters low power untill an interrupt is fired. I'll look into this when I get home.
I think it can easily handle 10A, but I haven't tried yet. As you can see in the layout, there are four parallel 0.6mm traces to the mosfet of only 12mm, and the other end is tied to the ground plane on the bottom (whole bottom is copper). I'll put it on a CC psu sometime soon to test.
That's also possible, but SMD is very easy. These are all pretty 'big' components. Easiest way is to apply paste on the pads, put down the components and use a hot air gun. But even with a soldering iron it's very do-able. If you need help with the layout for the through hole version; send me a message
The top and bottom have stitched groundplanes which double as a heatsink. They only need to dissipate 0.07W (mosfet ESR times current).You can use WDT (also interrupt based) but a Pin-Change Interrupt reacts instantly and then you can also use momentary push-buttons. With a WDT it's possible to be asleep during the button press. Also it'll use more power because it's constantly checking in intervals.
Programmable Battery Protec...View Instructable »
Looks nice man. Don't port your car speakers however, they're better suited for sealed enclosures (like car doors :))
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an active crossover would work well here
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