Wow! Really nice move, this opens the door to the possibility of using a boost driver with emitters in series (perfect for home lighting high CRI triples, by the way).
There's already a wide selection of boost drivers, some of them marketed for 2S emitters while others for 4S (like XHP35s).
BanL, in behalf of this community, may you at least do some quick maximum output voltage tests for the 2S drivers? This can be as easy as measuring the driver output voltage without load. In order to drive 3S, the output voltage needs to reach at least 10+V, I believe. On the other hand, drivers geared for XHP35s should workā¦
Honestly speaking: it may be a good idea to build an in series triple and test out each driver with it (the Vout polling info would be quite handy too).
Hi, Kaidomain I need your help! I know this is the dumb question but I am confuse? I bought a (H2-C 22mm 1.5A 1 or 2-cell 5-Mode Boost Driver Circuit Board for Cree XHP35 / XHP50 12V) diver and I using 1 cell on XHP35, can I use 2 cell on XHP35? Or it has to be XHP50 for 2 cell.
Iād love to be able to buy the charging boards that JKK uses. I could have sworn Iāve seen it for sale before, but I havenāt been able to find them again for years.
Hello,
I think i got the wrong parts delivered. They arrived some time ago but i did not had the time to use them and i did not check them when they arrived. I ordered SKU:S006044 (21mm Parallel Star for CREE MC-E (5PCS)) and i got 5 MCPCB that are Serial if i am not wrong
Nice boards indeed! And the LED would fit perfectly if it were a single color MC-E. But i have 8 RGBW MC-Es left and i have (after checking) not 5 but 10 Serial boards. I ordered 2x 5 Parallel. Hope they have enough Parallel boards left. To mod the boards so that i can make it work would be possible but to do it 8 times is a pain in the ass! And i do not know if i could still use these optics (http://www.mouser.de/Search/ProductDetail.aspx?R=CA10945_RGBX-MC-Ovirtualkey56980000virtualkey928-CA10945RMCO) if i mod the boards (do not know if i have enough space for the wires to go directly to the pins of the LED).
mattlward, versus a FET hack reference, thIs in series boost driver provides:
Less maximum peak output, we already know that. Our main limitation here is the maximum allowable input current to the driver (10A theoretical) and its efficiency, which rule the amount of power burned in the driver. However, up to ā25W of output is nice enough for a lot of 1S setups, really enough power to make a compact torch hot fast.
Fully regulated modes, no pulse-width-modulation dung, constant output within battery voltage/SoC window.
Full battery utilization (down to 3V) with shutdown. In my opinion, we should make aware the developers of these drivers they should use slightly lower cutoff values for high current input drivers, as any little stray resistance can become a serious input burden.
