wheedy
0
- Joined
- Feb 14, 2012
- Messages
- 149
- Points
- 18
I have two ben boost drivers at 914mA apiece.
I have then wired up as shown:
(direct link for massive size)
http://i.imgur.com/UZjwm.jpg
http://i.imgur.com/OAcD2.jpg
I'm running an M140 and expecting to get 2W out of it.
But I have an issue.
When I power the entire thing with a single 18650 (Ultrafire BRC 18650 3000mAh 3.7V li-ion), the diode flashes on once and immediately shuts off. The drivers are ice cold, no heat generated anywhere.
When I power it with 2 AA batteries, it stays on with an infinite cycle. No heat is generated anywhere (not even noticeably in the heatsink). Some burning power, bean is distinct in the dark, hard to spot in a lit room.
When I power it with a stand Motorola Droid 3 battery (3.7v Li-ion 1500mAh, model name BF5X), the diode produces a (what I assume to be) full power lase but for only a second or two before shutting off. The beam is very distinct in a lit room. The runtime varies each time. Sometimes it goes for a split second like the 18650, sometimes it runs for 5 seconds. For longer (3+ second) runs, the drivers get slightly warm.
When I connect a 4ohm resister (smallest I have) to my positive lead to my battery using the 18650, the diode lases as normal. I doubt the output is full strength, because of the resistor (and very little heat is generated on any component other than the resister - it gets VERY hot, but never fails).
Same thing as above happens when used with the Motorola phone battery.
What does this sound like to you guys? :thinking:
There's obviously an issue somewhere... I'm 99.9% certain everything is wired right. My 18650 battery worked fine in my 405nm 478mA build.
I have then wired up as shown:
(direct link for massive size)
http://i.imgur.com/UZjwm.jpg
http://i.imgur.com/OAcD2.jpg
I'm running an M140 and expecting to get 2W out of it.
But I have an issue.
When I power the entire thing with a single 18650 (Ultrafire BRC 18650 3000mAh 3.7V li-ion), the diode flashes on once and immediately shuts off. The drivers are ice cold, no heat generated anywhere.
When I power it with 2 AA batteries, it stays on with an infinite cycle. No heat is generated anywhere (not even noticeably in the heatsink). Some burning power, bean is distinct in the dark, hard to spot in a lit room.
When I power it with a stand Motorola Droid 3 battery (3.7v Li-ion 1500mAh, model name BF5X), the diode produces a (what I assume to be) full power lase but for only a second or two before shutting off. The beam is very distinct in a lit room. The runtime varies each time. Sometimes it goes for a split second like the 18650, sometimes it runs for 5 seconds. For longer (3+ second) runs, the drivers get slightly warm.
When I connect a 4ohm resister (smallest I have) to my positive lead to my battery using the 18650, the diode lases as normal. I doubt the output is full strength, because of the resistor (and very little heat is generated on any component other than the resister - it gets VERY hot, but never fails).
Same thing as above happens when used with the Motorola phone battery.
What does this sound like to you guys? :thinking:
There's obviously an issue somewhere... I'm 99.9% certain everything is wired right. My 18650 battery worked fine in my 405nm 478mA build.
Last edited:
