Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Jayrob PT-54 Phatlight Green @ 9A!

Fiddy

Fiddy

0
Joined
May 22, 2011
Messages
2,726
Points
63
G'day,

In my quest for RGB 2D maglites, here is the second installment.

Running a green PT-54 @ 9A with a Der Witchel 9A high efficiency buck driver and a DX aspheric lens, its quite a thrower!

jayrobgreen.jpg


EPIC BEAM SHOT!

pt54aspheric.jpg


I am scared to shine this thing into the sky for long durations as it is similar to a laser in its throw distance and its color is very similar to 532nm!

Full credits to Jayrob and his build skills, they are always epic!

Thanks for looking!

Fiddy.
 





LaZeRz

LaZeRz

0
Joined
Feb 19, 2011
Messages
2,549
Points
63
Wow! Epic!

The current drawn, ITS OVER 9000!!!!!
 
Last edited:
jayrob

jayrob

0
Joined
Sep 21, 2007
Messages
9,862
Points
113
Glad you like the build Mitch! :D



LaZeRz said:
Wow! Epic!

The current drawn, ITS OVER 9000!!!!!
Click to expand...

The very efficient buck driver used in this build, is delivering 8.9 Amps to the emitter. Which has a forward voltage of 4.9 volts per the spec sheet. (I measured 4.3 volts)

Supplied with 2 X Feilong 6000mAh 32650 Li-Ion's, the current draw from the batteries is about 6 Amps or so...

Full details of the build with links to parts shown here: :beer:
http://laserpointerforums.com/f42/9-amp-pt-54-phlatlight-maglite-mod-64054.html
 
Last edited:
LaZeRz

LaZeRz

0
Joined
Feb 19, 2011
Messages
2,549
Points
63
jayrob said:
Glad you like the build Mitch! :D





The very efficient buck driver used in this build, is delivering 8.9 Amps to the emitter. Which has a forward voltage of 4.9 volts per the spec sheet. (I measured 4.3 volts)

Supplied with 2 X Feilong 6000mAh 32650 Li-Ion's, the current draw from the batteries is about 6 Amps or so...

Full details of the build with links to parts shown here: :beer:
http://laserpointerforums.com/f42/9-amp-pt-54-phlatlight-maglite-mod-64054.html
Click to expand...

hehe, Over 9000 is a troll quote ;D
 
jayrob

jayrob

0
Joined
Sep 21, 2007
Messages
9,862
Points
113
LaZeRz said:
hehe, Over 9000 is a troll quote ;D
Click to expand...

What do you mean??

Are you talking about the battery current draw at about 6 Amps vs the 8.9 Amps to the emitter?

It's a buck driver. The supply voltage is higher than the emitter needs. The current to the emitter is higher than the current draw because of the driver used...
 
BShanahan14rulz

BShanahan14rulz

0
Joined
Dec 29, 2009
Messages
3,136
Points
63
I think he meant that him referring to the amp draw from the cells as being 9A was the trolly part.

Someone with red, green, and blue phlatlight aspheric builds ought to get one of those massive dichroic x cubes :D
 
DTR

DTR

0
Joined
Jun 24, 2010
Messages
5,684
Points
113
Man that is an awesome build. Congrats to both you and Jay.:beer:

I really want a PT-121 green build but need a driver capable of delivering the 30A to it for a 3500 lumen green monster. I have the green PT-121 LED and some A123 26650's that can deliver 30A with one hand tied behind their back. Originally I was thinking of using two of them in series to direct drive the LED. But I would rather have something to regulate the current. Don't want to dump 100A in it and watch it toast the LED as the max forward voltage on the Green 121 is 5.9V and two of the A123's in series would carry a fully charged 7.2V.:tinfoil:
 
Last edited:
Fiddy

Fiddy

0
Joined
May 22, 2011
Messages
2,726
Points
63
thanks DTR :)

Wow i will tell you now, if you run a 121 with ~30A with a aspheric lens focused well, you will have the authorities on you for possessing a "death ray" :D

at 9A its quite visible in the air for a long distance!
 
Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
DTR.. what about a 200W 0.2 Ohm power resistor? Not that it's cheap, but it might be cheaper than finding a driver for that. You could even do a TEC cooled series/parallel array of lower wattage (16x 10W) resistors and have it work as well. Pack the array as densely as possible and thermal epoxy all the resistors to a TEC cooled "cold side" heatsink.
 
You must log in or register to reply here.




Top