Originally Posted by adm3745
Thanks for the help. I just gave up on the Ostar LEDs and have decided to get some SST-90's. I figure if I can find a way to drive them to 5 A I can get alot of light out of it. Just need to find an eficient way to get 5 Amps and also a reflector now...
I'm here (DIY forum) too. Production PCB's are in transit, scheduled for delivery Monday. I will build the first two Monday or Tuesday, and they go to Bradsab. Then if all goes well I will open a sales thread on candlepower forums. I will post a link in the thread mentioned below.
One caution though, my driver may or may not satisfy the "efficient" clause. It's pretty good if the battery voltage is close to the LED voltage, but as the battery voltage increases, the efficiency decreases. It's great for a 4-series NiMH pack but if you plan to use a 2-series Li-Ion pack to drive an SST-90, you may want a different driver. The link below is to a thread that discusses this in more detail, and has links to the other two drivers I'm aware of that are under development.
High current (SST-90) driver - CandlePowerForums
Since I won't have boards to build until Monday, I'll be working on the data sheet over the weekend, and will post it in the thread above when it's finished.
D