🚀 go-pugleaf

I have noted that when halogen stage lights go of (500-2000W) there is
a delay before the light is gone. Is the response to voltage changes slow
for halogen lights? I was thinking of controlling a TRIAC with a
microcontroller and one idea is to use patterns of AC half periods that is
on or off. A 50% setting would be one halfperiod (hp) of and one on.
A 75% setting would be 3 hp's on and one off. Switching the TRIAC on and
off at the zero crossing point would eliminate the need for filtering away
unwanted electro-magnetic interference.

The problem is flickering for low settings. A 10% setting will give 9 hp's
off and one hp on. But if the halogen lamp is slow in response it will
eventually be no problem. Anyone know?


Kent Boortz
boortz@sics.se
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Kent Boortz
boortz@sics.se