Electronics > Projects, Designs, and Technical Stuff
DC load using a CPU cooler
microbug:
@timb Sounds great! What's shipping like to the UK?
@rob77, there will be OVP/OCP in hardware as well as a thermal cutoff on the heatsink. I'm using an INA196 for current sensing, so I'll use that to drive a comparator switching the output relay.
I could get access to a CNC mill at my local makespace... but they don't accept members under 18 (I'm 15). I don't know anyone else with access to a mill, but I could probably find someone on the forum if need be.
timb:
Shipping's not bad, I'll cover it. Let me find the raw mats locally and you can just chip in a few bucks towards it if you want?
Wow, you're 15? Man I am going to load your package up with some random goodies I've got laying around. I've been waiting for a good opportunity to send them to someone who can use them!
Sent from my Smartphone
microbug:
Thanks! PM sent.
Jeroen3:
Intrigued by this topic, I went looking for a way to mount the common TO-220 mosfets (or a bts141) in a low profile way such that pc heatsinks (cpu or northbridge) will fit.
I've come up with this:
This also leaves space for isolated TIM material, which is very important.
microbug:
--- Quote ---A back brace made from thick insulating material with cutouts for the lead stubs will probably be needed in any case, or a thinner one with an aluminum backing plate to give even pressure.
--- End quote ---
If it works, I'm all for it.
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