We’ve often been a very little unfortunate that supercapacitors are not marked with a massive crimson S on a yellow track record. Nonetheless, [DiodeGoneWild] picked up some substantial-benefit supercapacitors and used his appealing homemade oscilloscope to look at how they labored. You can observe what he is up to in his workshop in the online video underneath.
Supercapacitors use special techniques to obtain really high capacitance values. For example, the 1st unit in the video clip is a 500 F capacitor. Which is not a typo — not microfarads or even millifarads — a complete 500 Farads. With fair resistance, it can consider a very long time to demand 500F, so it is less complicated to see the conduct, primarily with the selfmade scope, which possibly will not decide on up pretty fast indicators.
For case in point, A 350 mA charging present can take about an hour to carry the capacitor up to 2.6 V, just under its most score of 2.7 V. Supercapacitors commonly have very low voltage tolerance. Their significant ability will make them ideal for low-recent backup applications where you could possibly not want a rechargeable battery mainly because of fat, warmth, or complications with extensive-time period potential loss.
The genuine star of the video, although, is the cast of homemade test equipment, which include the oscilloscope, a power source, and a battery analyzer. To be truthful, he also has some retail store-purchased take a look at gear, as well, and the benefits seem to match very well.
Supercapacitors are one of people issues that you don’t require until eventually you do. If you have not had a possibility to perform with them, check out the video clip or at minimum observe it to take pleasure in the homebrew equipment. We commonly look to [Andreas Spiess] for ESP32 tips, but he is familiar with about supercaps, far too. If you truly like generating as substantially as you can, you can make your very own supercapacitors.
