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how to chargie SUPERCAPACITORS being as efficencyaspoosible?

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mikaeltrigo

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I get in with a signal +- 5-10V (max 0.6A ). / this signal come by inductive coupling.

I've to charge a combinaison of super cap ( 5F,5v).
WHat is the best way to charge them from 0v to there maximum charge.
I need to lo loose as less as possible energy. ( i can only charge my caps for a moment).
Any ideas?
 

Re: how to chargie SUPERCAPACITORS being as efficencyaspoosi

Depends on the voltage/current characteristic of your source. If it gives almost constant power independent of the voltage, you can
simply use a full-wave rectifier to charge the supercap. If it shows a power maximum at a certain output voltage, you should implement
a DC/DC converter that controls the load current to achieve an optimal operation point.

If the input conditions are also changing, the converter has to implement a MPPT (maximum power point tracking) algorithm.
 

a 10F 2.3v supercap charges for 20sec at a 1amp source and last for 3hrs on my portable radio, although it's quite expensive it's quite efficient, would last longer than nimh (in terms of lifespan) and it doesn't suffer any memory effect. It would definitely replace ordinary rechargeable batteries in the future. I think they are developing a new substance called Carbon Graphene that is even more efficient, well last time i heard.
 

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