dieselsmoke
Newly Enlightened
- Joined
- Mar 11, 2009
- Messages
- 45
My error, I documented this driver as accepting 3 - 9v and connected a single Q5 and two fully charged 18650's in serial.
http://e-lectronics.net/driver-board-950ma-njg15-modes-p-435.html
I noticed that after about 30 seconds the emitter went from very white to very blue light, and the copper slug it was mounted to heated up much faster than normal (this is just a test emitter.) Out of curiosity I checked the amperage between the batteries and driver, and again between the driver and LED and was surprised to see 2.5a both places.
So what happens in such a situation ? Do the chips on the driver fry and allow unrestricted amperage to pass ? Once an LED turns blue as it did, is it typically done for good ?
I'm asking not out of real concern for the components, but more as a learning exercise.
thanks
http://e-lectronics.net/driver-board-950ma-njg15-modes-p-435.html
I noticed that after about 30 seconds the emitter went from very white to very blue light, and the copper slug it was mounted to heated up much faster than normal (this is just a test emitter.) Out of curiosity I checked the amperage between the batteries and driver, and again between the driver and LED and was surprised to see 2.5a both places.
So what happens in such a situation ? Do the chips on the driver fry and allow unrestricted amperage to pass ? Once an LED turns blue as it did, is it typically done for good ?
I'm asking not out of real concern for the components, but more as a learning exercise.
thanks