B
Bernhard Kuemel
Hi sec!
I want to make bright flashes by dumping a capacitor into an LED through
some transistor. What capacity/voltage are safe before the LED lifetime
drops significantly? Right now I have a 20 mA green LED. No specs cause
I found it (several bars with lots of red, green and blue LEDs, actually).
The application would be a blinkie/throwie with solar cells charging a
EDLC which drives a step up converter into a normal electrolytic and
blink at intervals so it can blink through the night. So maybe 500-1000
blinks/night, about once/minute.
470 uF, 12V left no noticable damage after a few times.
Bernhard
I want to make bright flashes by dumping a capacitor into an LED through
some transistor. What capacity/voltage are safe before the LED lifetime
drops significantly? Right now I have a 20 mA green LED. No specs cause
I found it (several bars with lots of red, green and blue LEDs, actually).
The application would be a blinkie/throwie with solar cells charging a
EDLC which drives a step up converter into a normal electrolytic and
blink at intervals so it can blink through the night. So maybe 500-1000
blinks/night, about once/minute.
470 uF, 12V left no noticable damage after a few times.
Bernhard
