At 06:58 PM 2/9/2007, Brooke Clarke wrote:
>Hi:
>
>I'm looking at powering some 1 Watt LEDs using a ZXLD1350 that has a
>maximum input voltage of 30 Volts from a battery that might be as high
>as 32.8 Volts when fully charged.  I'm trying to come up with a way to
>keep the voltage at or below 30 volts without wasting any more battery
>power than necessary.  One way would be to use 5 diodes in series with
>the battery input then when the voltage gets down to 30 short them out.

Silly question: how many LEDs?  Can you put one of the LEDs in series 
with the battery input?  That LED won't see the same current as the 
remainder but is that a problem?

dwayne

-- 
Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

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