I’ve always been really fascinated with heatsinks – their overall design, function, composition – you name it! When I salvage electronics I’m almost certain to save every heatsink I can scrap, because you never know when you’ll want or need that specific design 😉 In the video below Ohmite quickly discuss how a few physics calculations (Stefan–Boltzmann & Planck’s laws) persist throughout most heatsink designs. You can tell the video is a bit dated – not only because they describe it as a “vodcast” – but it’s still useful for its “aha” moments.
Also in the video they show their patented heatsink for TO-247 packages:
I was unaware of this design but sure enough Ohmite have a fewversions of it, as do others like Fischer.
This vodcast discusses the steps taken and calculations made when choosing a heatsink for industry standard package sizes.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.