I am testing a 700ma LED Buck Regulator from an Arduino using PWM.
Available on EBAY at 700ma LED Buck Regulator
The Buck Regulator is powered by a 36v DC Power Supply and a 20W COB LED CHIP is being used.
When I send an AnalogWrite(0) I notice that the led is still just lit. I assume it is just the Capacitator having some charge in it and the current draw is very low so a long time for it to pass all current.
It appears that the LED over a period of 30+ seconds fade to nothing but I would like it to be off when I provide AnalogWrite(0)
Is there something I could put inline to make this happen faster?