am gasit ce valori au, disutia s-a intins dea lungul intregului subiect legad de driver si sunt franturi. defapt ce a facut, intr-un post a prezenta decat o placa pentru un regulator SCW in care de cat a spus ca e doar un test,
dupa care a adaptat placa sa poata fi pozitionata peste o placa cu ldd-uri,
a urmat ce de patru ldd-uri si un scw si inca o data a revenit la ce simpla de un Scw unde a strecurat printre randuri ce diode si ce tranzistori a folosit si dece
"I know that I posted about this a few pages back, but I recently got around to ordering a batch of these little SCW/LDD-H adapter PcB's and they arrived in yesterday's mail. I spent a few minutes last night to solder one up and try it out. It works! This little adapter allows the installation of an SCW convertor into a position normally occupied by an LDD-H. This converts the Led outputs for that channel into a switched 12V source for cooling fans or whatever. The little PcB carries it's own power indicator led, a flyback diode, a couple of resistors, and a 600ma NPN transistor that is controlled by the main PcB's PWM input pin.
I tested the circuit with a normal run-of-the-mill 2 wire PC cooling fan. I could turn the fan "on" and "off" or control the speed of the fan using a PWM signal from my led controller. I was able to slow the fan to around 20% duty cycle with no problem. This little adapter could prove handy for people using some of the older PcB designs found earlier in this thread.
Here's a photo of the circuit, the SCW pins are offset from the LDD-H pins by about 2mm, so the adapter should fit most of the older boards."
si ultima e aceasta placa 8ldd unde a pus si lista cu piese
Tranistori de 600ma NPN
DIODE GEN PURP 1KV 1A MINISMA
chip led 1206 de culoare verde ca consuma cel mai putin
reistori m1206 de 1k si 10k
multumesc mult Lucian