Two drivers Iโm testing.
Where do I sign up to be a tester? ๐
this post was submitted on 21 Jun 2023
6 points (100.0% liked)
flashlight
2944 readers
39 users here now
Portable illumination
Rules:
- Be excellent to each other
- Don't be the reason we need to make more rules
Related:
founded 1 year ago
MODERATORS
Do you use Eagle to design the PCBs? If so, is it the Free Version? If not, What software do you use?
Test results for BST15 (the smol one) :
Alright, we need details on these drivers. I love to hear about your projects.
The small one dubbed BST15 is a 15mm component clearance/17mm total diameter boost driver, rated for ~40W (6A~6.5V, 3A~13V), with HDR (low moonlight), itโs compatible with e-switch (Anduril) and Mike_Cโs OTSM implementation for clicky switch, I made it (with his blessings) so that it is easier to build than his version and added reverse polarity protection , my first version had some issues at high current, at the time I didn't do too much troubleshooting and left it aside, recently I made an updated version, which is the one I just assembled and it works well. The next step is assembling a couple more to send to Mike so that he can finish his firmware, then Iโll share the PCB/BOM for people to assemble it themsleves.
The big one is also a boost driver, 1S input, Iโll post more detail once I have finished testing it, I did some partial efficiency test already but I donโt have a power source powerfull enough to test it at max current ๐
.
Itโs for a rather popular light so it shouldn't be too hard guess which.
We need to get batches of your drivers produced. I don't have the patience or skill to reflow them myself. ๐
Are those large cubes on the driver's indicative of either boost or buck function?
Yeah, they are inductors used for switching converters (and the one on the left is a real monster!). @[email protected] is known for high efficiency drivers, so I wouldn't expect anything less.