Now that grad school has started for me, I have a bit more time to doodle around on this blog. This is a bit random for an article, but in case you are interested, Electronic Goldmine is having an awesome sale on boostcaps. I have been looking for these on sale for a while so I bought a bunch.
The deal is $10 apiece, and the overall shipping for your order doesn't scale too much with each one. I ordered 5 and shipping was about $12 to Florida.
What can you do with these?
Ridiculous, ridiculous nonsense.
With a whopping 2600 farads of capacitance and max voltage of 2.5 V, each one stores about 8 kilojoules of energy and can safely discharge at a rate exceeding 1 KW. This is thanks to the extremely low equivalent series resistance (ESR) of the device, which is typically < 5 mOhms for similar capacitors in this product line.
What this means is that you can obtain extremely high pulsed current levels for long periods of time. Other capacitors can provide higher voltages, but typically have much higher ESR values, reducing their power rating. If you wanted to use batteries, you would be able to store a greater energy in the same size/weight, but could not obtain the same peak power. Boostcaps also charge much faster.
These are excellent components for many applications including hybrid cars and robotics, but they have far more potential in other areas requiring staggering current levels.
Wouldn't you like to know what I'm going to do with them?
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