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Old Nov 19th, 2018, 16:46   #18
Laird Scooby
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Quote:
Originally Posted by SwissXC90 View Post
It's not a ballast resistor.
It's there to sink the leakage current which occurs in electronically switched lighting systems when you do not use an incandescent bulb.

So you just need to provide a resistive pull-down path to ground, and it doesn't need to be much.
You could probably get away with 10kOhm

You definitely do NOT want anything like 470 ohm which would start to get warm.

The goal here is to pull-down with the least amount of current possible, and thus the least amount of power dissipation.
Define "ballast resistor" please?
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