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- Sep 11, 2011
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Okay I'll take a few pics later. Thanks for the help!
The thing is I'm powering the whole thing from an adjustable power supply
I thought PWM was the way to go to dim circuits or does this circuit just suck?
If I use a pot to dim the circuit, doesn't it generate a lot of heat and wasted power?
If the power is the NPN transistor, are there better transistors for this function?
PWM is not the best way to dim lights. Smooth constant light is better. If you smooth out those pulses and add feedback, you have an actual driver (buck and/or boost).