At 09:51 AM 8/30/2003, Art wrote:
>I'm looking for some small rechargeable batteries. I only need 10 or 20
>ma/hours, but they have to be small and stackable so I can get higher
>voltages.
>
>I found 1/2 N cells, they are still a little larger than I'd like.
>
>I need brief (nanosecond to microsecond) ability to produce 3 ma or just a
>tad more...so the battery backup cells won't work becsuse they are rated
>for .2 ma and lower.

Do you have room for a bulk capacitor?

How much voltage droop can you withstand over the period of your pulse?  Do
the math - you know current drain and delta V which tells you how much
capacitance you need.  Do you have room for that size capacitor?

dwayne

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Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
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