ReNNo
0
- Joined
- Mar 27, 2009
- Messages
- 589
- Points
- 0
Re: 3 mode driver for 445nm, one Li-ion
Nice, I have one LM350 that can support currents up to 3A.
Nice, I have one LM350 that can support currents up to 3A.
LPF Donation via Stripe | LPF Donation - Other Methods
Links below open in new window
ArcticMyst Security by Avery
NJG-18, multimode boost driver for 445nm.. and possibly 650nm
- Thread starter SHIN
- Start date
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: 3 mode driver for 445nm, one Li-ion
I think LM series need 2 of Li-ion battery for 445nm LD.
I heard when draining "high current" from serial 2 of Li-ions, there might be more possibility of the battery explosion according to their mismatch.
So I have been searching and testing many drivers for one Li-ion.
As posting previously, my dual v5 drains over 4A (max 4.6A). "New" high current for portable laser!
Some Li-ion with protection circuit(Samsung) stopped draining as like when shortage.
I'm a coward.:yh:
SHIN
I think LM series need 2 of Li-ion battery for 445nm LD.
I heard when draining "high current" from serial 2 of Li-ions, there might be more possibility of the battery explosion according to their mismatch.
So I have been searching and testing many drivers for one Li-ion.
As posting previously, my dual v5 drains over 4A (max 4.6A). "New" high current for portable laser!
Some Li-ion with protection circuit(Samsung) stopped draining as like when shortage.
I'm a coward.:yh:
SHIN
Last edited:
ReNNo
0
- Joined
- Mar 27, 2009
- Messages
- 589
- Points
- 0
Re: 3 mode driver for 445nm, one Li-ion
I'd use 12V rail from computer PSU for tests.
I'd use 12V rail from computer PSU for tests.
- Joined
- Dec 29, 2009
- Messages
- 3,136
- Points
- 63
Re: 3 mode driver for 445nm, one Li-ion
I just recently hooked up my 445nm diode to 3 amc7135's. It was amazing, but I think I want to go the way of that 3-mode driver eventually. I like the idea of running off of a single cell because right now I have to overdrive the 7135's with two Li-Ions in series. Not only that, but I only have unprotected cells, so in reality, running them in series is not an option.
I just recently hooked up my 445nm diode to 3 amc7135's. It was amazing, but I think I want to go the way of that 3-mode driver eventually. I like the idea of running off of a single cell because right now I have to overdrive the 7135's with two Li-Ions in series. Not only that, but I only have unprotected cells, so in reality, running them in series is not an option.
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: 3 mode driver for 445nm, one Li-ion
Hi. BShanahan14rulz.
I use several amc7135 drivers for testing and building LD, especially IR LD with single cell. (2, 3,..8 with clip)
There are wide variety of amc7135 based drivers with or without modes.
I like that because I can "choose".
Unfortunately, NJG-18 is the only single-cell driver for 445nm I can find in cheap LED sites.
SHIN
Hi. BShanahan14rulz.
I use several amc7135 drivers for testing and building LD, especially IR LD with single cell. (2, 3,..8 with clip)
There are wide variety of amc7135 based drivers with or without modes.
I like that because I can "choose".
Unfortunately, NJG-18 is the only single-cell driver for 445nm I can find in cheap LED sites.
SHIN
Last edited:
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: NJG-18, 3 mode driver for 445nm with single cell
It's available in USA:
NJG-18 3-Watt LED driver board (.8 - 7v IN) (2-7v OUT) - e-lectronics.net :
And I found the way to bypass UI and then single mode in CPF. -picture
It's available in USA:
NJG-18 3-Watt LED driver board (.8 - 7v IN) (2-7v OUT) - e-lectronics.net :
And I found the way to bypass UI and then single mode in CPF. -picture
Attachments
lazeerer
0
- Joined
- May 25, 2010
- Messages
- 3,655
- Points
- 0
Re: NJG-18, 3 mode driver for 445nm with single cell
How did you get it to put out ~1.8amp.? Did you have to do anything to it or is the 1.2amps the clam on hi just a typo.?
Thanks +1
How did you get it to put out ~1.8amp.? Did you have to do anything to it or is the 1.2amps the clam on hi just a typo.?
Thanks +1
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: NJG-18, 3 mode driver for 445nm with single cell
Hi. lasereer.
As previously mentioned #39, I used a small heatsink for 5-pin chip like in microflex v5 (successful trial of DTR, Thank you. DTR) and 445-G-2 lens.
1.8A is for my dual v5 for the comparison of the power.
I expected the power of 2nd build(heatsinked driver) as 1.3-1.4W but 1.7W.(max. 1880mW)
I don't know the exact current of LD because I set the pot with LPM without test load this time. About 1.6A?
After 3rd build, I will post the exact current.
Thank you. lasereer.
SHIN
Hi. lasereer.
As previously mentioned #39, I used a small heatsink for 5-pin chip like in microflex v5 (successful trial of DTR, Thank you. DTR) and 445-G-2 lens.
1.8A is for my dual v5 for the comparison of the power.
I expected the power of 2nd build(heatsinked driver) as 1.3-1.4W but 1.7W.(max. 1880mW)
I don't know the exact current of LD because I set the pot with LPM without test load this time. About 1.6A?
After 3rd build, I will post the exact current.
Thank you. lasereer.
SHIN
lazeerer
0
- Joined
- May 25, 2010
- Messages
- 3,655
- Points
- 0
Re: NJG-18, 3 mode driver for 445nm with single cell
Thanks for the Explanation. Got confused . Cant wait to see your results. Ive got one on the way from that new site you posted.
Ive got some many different Drivers coming to me right now iam like in a good way.
But these are Sweet. The Pot is just a bonus including the Modes. Great find.
Thanks for the Explanation.
Got confused . Cant wait to see your results. Ive got one on the way from that new site you posted.Ive got some many different Drivers coming to me right now iam like
in a good way.But these are Sweet. The Pot is just a bonus including the Modes. Great find.
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: NJG-18, 3 mode driver for 445nm with single cell
Thanks. lasereer. Good luck!
I have tested about 20 LED drivers. I could find this only one for single cell 445nm.
I believe you can find new one for 445nm..
SHIN
Thanks. lasereer. Good luck!
I have tested about 20 LED drivers. I could find this only one for single cell 445nm.
I believe you can find new one for 445nm..
SHIN
Last edited:
lazeerer
0
- Joined
- May 25, 2010
- Messages
- 3,655
- Points
- 0
Re: NJG-18, 3 mode driver for 445nm with single cell
So far I have found these two that i posted in this thread Here:
http://laserpointerforums.com/f67/c...ifepo4-cells-iam-using-only-1-99-a-59119.html
I dont want to Derail this thread so ill just post the thread rather then the drivers as well. But unlike yours these drivers Run on 6+ Volts But can be modded to Put out 2A. Check the thread out for more details on modding it from a thread over on CPF.. I have one right now that i have had for months that iam not going to mod because i dont want to take apart my laser but when they come in ill mod both of them and post up.
So far I have found these two that i posted in this thread Here:
http://laserpointerforums.com/f67/c...ifepo4-cells-iam-using-only-1-99-a-59119.html
I dont want to Derail this thread so ill just post the thread rather then the drivers as well. But unlike yours these drivers Run on 6+ Volts But can be modded to Put out 2A. Check the thread out for more details on modding it from a thread over on CPF..
I have one right now that i have had for months that iam not going to mod because i dont want to take apart my laser but when they come in ill mod both of them and post up.
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: NJG-18, 3 mode driver for 445nm with single cell
I tested that driver, but it is not for single cell 445nm.....
I tested that driver, but it is not for single cell 445nm.....
DTR
0
- Joined
- Jun 24, 2010
- Messages
- 5,684
- Points
- 113
Re: NJG-18, 3 mode driver for 445nm with single cell
kiyoukan posted these somewhere and I ordered a few to play with. I have been so busy I did not have time read up on it other than seeing that it can run off a single Li-Ion, has reverse polarity protection, peaks @ 2800mA, and has low voltage indication. Sorry if these have been discussed before.:beer:
LED Driver Circuit Board for Cree MC-E / SSC P7 Emitter 2800mA [LD7X7135-2.8A] - US$6.00 : LED-DNA
kiyoukan posted these somewhere and I ordered a few to play with. I have been so busy I did not have time read up on it other than seeing that it can run off a single Li-Ion, has reverse polarity protection, peaks @ 2800mA, and has low voltage indication. Sorry if these have been discussed before.:beer:
LED Driver Circuit Board for Cree MC-E / SSC P7 Emitter 2800mA [LD7X7135-2.8A] - US$6.00 : LED-DNA
SHIN
0
- Joined
- Jul 25, 2009
- Messages
- 207
- Points
- 18
Re: NJG-18, 3 mode driver for 445nm with single cell
Hi. DTR.
That's 8x amc7135 board. (8x 350mA=2.8A)
But it's not boost driver for single cell 445nm, too.
I appreciate your idea for 5-pin chip heatsink. Thank you.:yh:
SHIN
Hi. DTR.
That's 8x amc7135 board. (8x 350mA=2.8A)
But it's not boost driver for single cell 445nm, too.
I appreciate your idea for 5-pin chip heatsink. Thank you.:yh:
SHIN
qumefox
0
- Joined
- Mar 26, 2010
- Messages
- 3,220
- Points
- 0
Re: NJG-18, 3 mode driver for 445nm with single cell
Yeah. Actual boost drivers are easy to spot because they'll always have an inductor.
Yeah. Actual boost drivers are easy to spot because they'll always have an inductor.
- Joined
- Dec 23, 2007
- Messages
- 2,494
- Points
- 0
Re: NJG-18, 3 mode driver for 445nm with single cell
Buck drivers also have an inductor, but not all will "boost" voltage.
Buck drivers also have an inductor, but not all will "boost" voltage.
