The small one dubbed BST15 is a 15mm component clearance/17mm total diameter boost driver, rated for 40W (6A6.5V, 3A~13V), with HDR (low moonlight), it’s compatible with e-switch (Anduril) and Mike_C’s 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 I’ll share the PCB/BOM for people to assemble it themsleves.
The big one is also a boost driver, 1S input, I’ll post more detail once I have finished testing it, I did some partial efficiency test already but I don’t have a power source powerfull enough to test it at max current 😅.
It’s for a rather popular light so it shouldn't be too hard guess which.
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.
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 (6A6.5V, 3A~13V), with HDR (low moonlight), it’s compatible with e-switch (Anduril) and Mike_C’s 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 I’ll share the PCB/BOM for people to assemble it themsleves.The big one is also a boost driver, 1S input, I’ll post more detail once I have finished testing it, I did some partial efficiency test already but I don’t have a power source powerfull enough to test it at max current 😅.
It’s 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. 😀
Where do I sign up to be a tester? 😏
They're beautiful 😍
Thanks 😊
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.
Yup, it’s pretty hefty : 14.5x13.5x10.7mm
Indeed they’re inductors as @[email protected] said, in this case both are boost drivers.
Do you use Eagle to design the PCBs?
If so, is it the Free Version?
If not, What software do you use?
I use Kicad.
Thanks! I'll check it out too!