Hi all. I might be called on to help out with a project. The part I'm
most unsure about is that the intensity of a 24V 250W light bulb will
need to be controlled, preferably by a PIC. It's being supplied by a
24V battery.

 I'd love to be able to find a compact, ready made module that would
do this part for me. Digital (ie serial data, etc) control would be
ideal, but analog might be possible. Alternatively I could use the CCP
module to generate some PWM, but I'd need a driver. The reason I'd
like a module is that in the event of a problem it would be easy to
swap out. I've done some searching and what I'm finding are a ton of
smaller modules meant for dimming LEDs.

Alternatively I could use PWM and some sort of home built driver. The
circuit here: http://www.solorb.com/elect/solarcirc/pwm1/ suggests the
use of a FET. Having never controlled this large a DC load before, I
have no idea if this is a good or bad idea. Any thoughts?

Thanks for the help!

Josh
-- 
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
        -Douglas Adams
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist