Im currently having the pleasure of working on a project where the cost of components is of little importance.
It's fun to work in this new way, but i find myself having trouble choosing components now that "the entire market is open to me"..
Here's the setup:
I'm designing a product that is to be powered by a regular switchmode DC supply. Minimum is 12Volts and 1 ampere (actually closer to 600mA)
The thing that's tricky is that the product has to retain it's power for 30 seconds after removal of the DC supply.
Meaning that i need a battery or supercapacitor that can supply at minimum 12V @ 600mA for 30 seconds.
I've already found a LiPo battery that can supply this. But am missing several key points in this particular design (charge circuit, power source chooser, step-up conversion to 12V and so on)
It would be so much easier if i could just put a super-cap in parallel with the supply, and let that take care of the 30 seconds of extra power, but i have no idea how to dimension a supercapacitor.
and, quite frankly, they scare me...
Any suggestions?
Regards
-Mark
