I wired a PWM according to CD's schematics like many brewers here have done. I tested it on a light bulb and can not get it to dim the light. The SSR will have the 115v line OFF when the pot is cranked to 0%, and then passes current to the bulb when the pot reaches around 50%. It does not dim.
I'm wondering if this might be an issue with the timer chip (lm555)? Baring the possibility that I wired this circuit wrong (wrong pins on the chip, i.e.) I wanted to see if anyone has experienced this and if there was an obvious error I made.
Though, I guess this begs the question: Is the PWM supposed
to dim the light? Or only switch it on/off?
When the power is left on (50%+) the light does not switch on/off, just stays on.
Here are some pics:
Set up to test... a little cluttered.
Pot turned to ~50%. Led lights on circuit and SSR passes current to bulb.