plexus
0
- Joined
- Dec 9, 2007
- Messages
- 441
- Points
- 28
I am trying to get a PL450B single mode build happening. I am using a Microboost. did the usual things: set my dummy load to 8 diodes (~6V drop), connected the driver to the load and battery (18650). measured the current on the load (1ohm) and set it to 350mA. of course solder blobbed the driver to the right current range. shorted out the driver LD output. connected to the LD and I get 10mW or so out of it.
So, I got a new diode and a new driver suspecting either or both. did the same thing, same result.
As a test I connected my meter in series with the LD in mA mode and got the same 350mA when the LD was operating. measure the V on the LD and it was 6.5V.
What the heck. I must be missing something for a completely new driver and LD to do the same thing the first set did. also ensured the battery was full at 4.1V. its a panasonic 3400mA 18650 almost new.
any pointers?
So, I got a new diode and a new driver suspecting either or both. did the same thing, same result.
As a test I connected my meter in series with the LD in mA mode and got the same 350mA when the LD was operating. measure the V on the LD and it was 6.5V.
What the heck. I must be missing something for a completely new driver and LD to do the same thing the first set did. also ensured the battery was full at 4.1V. its a panasonic 3400mA 18650 almost new.
any pointers?