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...
Forum Discussion
"While Mex quotes considerably lower forward voltage drop of .4-.5V for non Schottky diodes, I have never seen that low."
Whoa Hoss! I don't know how I implied that but I have never seen a silicon diode with less than say .58 vf. !!!
But the greater the peak inverse voltage (PIV) rating, generally the greater the vf. I have seen some 2K PIV diodes with a 1.1 volt vf but usually these are 1 amp or less and they shiver my timbers with the price tag.
Again I apologize if I erroneously led that silicon diodes can have a super low vf. That is never the case.
But Schottky rectifiers with very low PIV suffer greatly in an automotive environment. That's why I upgraded Jim in Denver's Megawatt to 150 PIV Schottky rectifiers from 100 PIV. Both rectifiers have the same vf. But the original is a 30 amp, the new ones are 80 ampere.
I used to purchase one mil boxes of 50 PIV 3-amp axial diodes and bench test them to 1.5 Kv and not get one single microamp everse leakage.
Zener diodes usually have impressive (high) vf, but high ampere, higher voltage zeners carry a stiff price tag.
Whoa Hoss! I don't know how I implied that but I have never seen a silicon diode with less than say .58 vf. !!!
But the greater the peak inverse voltage (PIV) rating, generally the greater the vf. I have seen some 2K PIV diodes with a 1.1 volt vf but usually these are 1 amp or less and they shiver my timbers with the price tag.
Again I apologize if I erroneously led that silicon diodes can have a super low vf. That is never the case.
But Schottky rectifiers with very low PIV suffer greatly in an automotive environment. That's why I upgraded Jim in Denver's Megawatt to 150 PIV Schottky rectifiers from 100 PIV. Both rectifiers have the same vf. But the original is a 30 amp, the new ones are 80 ampere.
I used to purchase one mil boxes of 50 PIV 3-amp axial diodes and bench test them to 1.5 Kv and not get one single microamp everse leakage.
Zener diodes usually have impressive (high) vf, but high ampere, higher voltage zeners carry a stiff price tag.
