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LEDdynamics
02-11-2003, 06:48 PM
http://www.leddynamics.com/EverLED/LD_logo3.gif
http://store1.yimg.com/I/ledsupply_1728_35687 (http://www.ledsupply.com/02008a.html)

LEDdynamics is proud to announce the release of the new PowerPuck 12VDC 5W Luxeon LED driver. This is the MicroPuck's (http://www.ledsupply.com/02009a.html) big brother.

PowerPuck Product Datasheet (http://www.ledsupply.com/lib/ledsupply/02008a.pdf)

The LEDdynamics 12VDC LED Drive module was designed to power (1) 5 Watt Luxeon, (4) 1 Watt Luxeons, or strings of 5mm (T 1-3/4) LEDs (see app. note) efficiently and with stability. This drive uses filtered switching technologies and LEDdynamics' proprietary drive and sense electronics to provide constant current to LED arrays.

The number of LEDs per channel can be varied within specific ranges. See our application notes or contact the LEDdynamics engineering department for more details.

The standard offering is a 1.5" diameter by .5" tall puck with mounting bracket, but other sizes can be created to meet the customer's needs. The unit is supplied with 24 AWG 6" colored leads.

Key Benefits of the 2008 12VDC 5 Watt Drive Module:</font><ul type="square"> <font size="2" face="Verdana, Arial">Cost: The 2008 represents a low cost option for providing constant current to LEDs.</font> <font size="2" face="Verdana, Arial">Longevity: The 2008 contains no moving parts and has been designed to outlast the LEDs.</font> <font size="2" face="Verdana, Arial">Design ease: Ask about our matching array designs for use with this product.</font> <font size="2" face="Verdana, Arial">Safety: The unit is surrounded by insulative epoxy and is water resistant. The unit is short circuit and open circuit tolerant.</font>[/list]<font size="2" face="Verdana, Arial">The PowerPuck is now available from
http://www.ledsupply.com/lib/ledsupply/truck-small.jpgLED Supply (http://www.ledsupply.com/)

Josh
02-12-2003, 06:07 AM
There are going to be some happy people when they read this images/icons/wink.gif

lemlux
02-12-2003, 06:02 PM
The data sheet says that input voltage can be between 8 VDC and 15 VDC. It also says that efficiency varies between 75% and 90%.

Is there a relationship between input voltage and efficiency? I would guess 90% at 15 VDC and 75% at 8 VDC. I hope I'm wrong because I'd love to optimally drive PowerPucks with 8 or 9 NiMHs or 3 Li-Ions.

James S
02-12-2003, 06:26 PM
lemlux, I think you've got it backwards images/icons/wink.gif

The closer the input voltage is to the output voltage the more efficient the thing is going to be becuase it has to do less work.

ott
02-13-2003, 08:01 AM
From LEDSupply,
The LEDdynamics 12VDC LED Drive module was designed to power (1) 5 Watt Luxeon, (4) 1 Watt Luxeons, or strings of 5mm (T 1-3/4) LEDs (see app. note) efficiently and with stability <font size="2" face="Verdana, Arial">I can't find the app. note and I was wondering how many typical 5mm leds this thing could power?

lemlux
02-13-2003, 11:31 PM
James S:

I hope you're right -- my guess really was/is uninformed. I had speculated that a lower drain on the higher voltage of combined cells might add to the efficiency.

binky
02-16-2003, 01:08 PM
LED Dynamics --

1.
For flashlight use, would be nice to have the 1.5dia x .5Height distributed taller and with smaller diameter and no bracket. That's a nice input/output spec, though!

2.
I of course headed over to your 'kit' page. Would you please mention whether the LED in the kit meets any flux or whiteness specs? I know I can contact to find out, but I'm just sayin' it would be nice to see on the page.

(I'm on the border, debating to order or not but I've spent a bundle on lights lately, but it'd be great to piece together my own light... if I can be assured that it'd be bright & white that'd probably toss me way over the edge, maybe other folks too.)

Hemingray
02-19-2003, 04:21 AM
I got mine this weekend, hooked one up to a 5W Royal Blue and it works great, used a 12V SLA battery to power it up.

THanks for another great ptoduct!

/ed B in NH

ElektroLumens
03-12-2003, 05:20 PM
I have a couple of them, but haven't had time to test them. I'm sure they will work great. I have a bike light project, using a white 5W LS, 30mm optics, micropuck 2008 regulator, 12v battery (water bottle).

Wayne j

JollyRoger
03-12-2003, 08:51 PM
Wayne, that bike light project sounds interesting!
Any low voltage protection for the battery?