70 amp charger cooking 12v LEDs?
Will using one of the upgraded 70amp Progressive Dynamics charger/converters fry my new 12v LEDs (unregulated version)? I've seen talk of leaving the old converter in place, deck mounting the new o...
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Static test versus full load can have any silicon rectifier range .4 - .5 volts. I strongly recommend a custom load calibration test before a final decision on rectifiers for vf function.
To wit: My 500 ampere Schottky rectifiers exhibit .19 volt static test vf and .48 vf under a 50 ampere load. A 2-ampere load results in a .22 vf.
Testing at max expected chip temperature is crucial. Once a chip begins thermal runaway - the game is over within seconds.
Curiously I have noted SMDs driven near max ma degrade in lumen output over a period of time. One chip device after another (chain effect) fails.
Ballasting diodes can be coupled in series.
To wit: My 500 ampere Schottky rectifiers exhibit .19 volt static test vf and .48 vf under a 50 ampere load. A 2-ampere load results in a .22 vf.
Testing at max expected chip temperature is crucial. Once a chip begins thermal runaway - the game is over within seconds.
Curiously I have noted SMDs driven near max ma degrade in lumen output over a period of time. One chip device after another (chain effect) fails.
Ballasting diodes can be coupled in series.
