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Old 07-11-2010, 11:37 AM #1
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Thumbs up Die4laser driver sounds excellent!

After getting all the documentation on this driver I am convinced this is the best lab driver for just about any diode less than 2Ws

I really like the slow to full power aspect of this driver.

I just ordered 3 of these.


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Old 07-11-2010, 12:29 PM #2
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Default Re: Die4laser driver sounds excellent!

i only use die4laser drivers on my buillds.

awesome bit of kit.

also met robin a number of times and top bloke
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Old 07-11-2010, 01:38 PM #3
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Default Re: Die4laser driver sounds excellent!

I bought a used die4drive off Dave @ LSP the other day, I am interested to take a look at it
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Old 07-11-2010, 08:41 PM #4
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Default Re: Die4laser driver sounds excellent!

Good. I will be getting 3 of his lab drivers. I intend to use every part of the driver.
The slow on ( current ramp-up) is hugely important to me. I don't think instant on is really kind to our expensive diodes.
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Old 07-12-2010, 04:25 PM #5
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Default Re: Die4laser driver sounds excellent!

I had the same idea for a 445nm "labby", but was sad to find out it will Max out @ 1A
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Old 07-13-2010, 06:53 AM #6
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Default Re: Die4laser driver sounds excellent!

Actually Die4laser driver has a 445nm variant that can go to 1.319 A at max with heat sinking. That's a LOT of power! I don't ever plan on taking a 445nm diode to that current
1W is just fine.
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Old 07-13-2010, 04:56 PM #7
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Default Re: Die4laser driver sounds excellent!

On the documentation I have it says if you power it from 9v you can get 1.4A.
I wont be powering mine with that much current thats for sure.
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Old 07-13-2010, 05:03 PM #8
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Default Re: Die4laser driver sounds excellent!

No actually with 9v you can't power it to that level. In the read me file it says maximum power is 500mA at 9v. According to Robin, between 7 - 7.8 volts can run a 445nm diode (either a A103 or a A104 series) to full power. 4.5v @ ~1.3A.

That's a good 1.2W of 445nm to play with. Nothing to be careless around that's for sure.
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Old 07-13-2010, 05:32 PM #9
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Default Re: Die4laser driver sounds excellent!

I've just look at the doc's again and the readme is saying something different ( As you said ) to the xls file. why would this be ???
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Old 07-13-2010, 05:55 PM #10
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Default Re: Die4laser driver sounds excellent!

I'm actually planning on testing a die4drive. I've had great results using drlava's flexmods which provide up to 6A of current, but I'm always interested in trying new things and I've heard very good reviews of the die4drive.
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Old 07-13-2010, 09:31 PM #11
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Default Re: Die4laser driver sounds excellent!

Well I got this straight from Robin:

Quote:

The driver is limited to 1A out due to the 1W rating of the 1 Ohm sense resistor.
Additionally when running 445nm blues the ideal supply voltage is 6V to 7.5V. Operation at 9V is possible as long as the current is kept below 600mA

End Quote.
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Old 07-13-2010, 09:47 PM #12
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Default Re: Die4laser driver sounds excellent!

Yes, right. but with a 1W resistor ~1.4W is possible for short runs.
He did indicate the replacing the sense resistor with a 2W rated one could be possible.
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Old 07-13-2010, 10:08 PM #13
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Default Re: Die4laser driver sounds excellent!

Ok, but read on, got more info from him on this;

Quote:
The 0.1 Ohm variant was initially done to support 808nm diodes and the driver was run from a 3.3V supply.
Using a 5V supply and a driver with R12 fitted as 0.1R might be ok for 2A through a 445 but there is very little voltage left across the output transistor.
Based on some testing on Photonlexicon the highest Vf for a 445nm diode at 1.53A was 4.99V
(see post 51 in 445nm diode info)
Another diode from an A140 was 4.45V at 1.57A.
At 2A you will have 200mV across the 0.1R
With a 5.0V supply - 0.2V = 4.8V ie less than the Vf at 1.53A
Also you really want a few hundred mV of margin left as Vds on the output MOSFET.

Short answer is it might work for one diode than not work for the next.
If you could push the supply up a little it would be possible for all diodes.

Having a 1R instead of 0.1R also helps with reducing transient susceptibility
End Quote
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A-Laser Model AD66Y0PGD 660nm 200mW
DX-200 660nm & 532nm, Leadlights & numerous 5mw-100mW 532mn
IgorT (6x) 209mW & (PHR) 140mW, Kryton 155mW, Daguin 165mW
Wicked Lasers S3 Spyder Krypton 1W model and 750mW+ model (839mW)
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Jayrob 18650 w/MicroBoost & CU Heatsink A140 Diode 900mW, 295mW Pen by Pontiacg5
Rifle v2 Full 1.2W,
Rifle v2 Full 500mW, Rifle v2 Full 300mW & Cyber 445 1.2W all focusable w/Full Lens Kits

Coherent's Newest High Performance LabMax-TOP Laser Power/Energy Meter Accuracy 1.0%, Power Resolution 0.00001 Statistical Analysis: Min, Max, Mean, Range, Std Dev, Energy Dose, & Stability; Trend Charting, Tuning, Beam Stability Analysis, Extra Large Positional Display (112mm x 78mm) and Data Logging to a USB Flash Drive Directly on the Meter or PC w/ LabView Software.

D4thing LPM (3W), Andover LPM-1, Optic kits, and Certified Safety Glasses for Green, Red & Blue Lasers.
Chargers: Pila IBC (Swiss Designed & Engineered) the Gold Standard (UL). Xtar SP2 & VP1, Soshine SC-S1max V3 EagleTac & KeepPower 18650 3400mAh AA/AAA La Crosse BC1000 Maha MH-C9000 Eneloops
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Old 07-13-2010, 11:19 PM #14
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Default Re: Die4laser driver sounds excellent!

Easy to get. Look for modular PSUs. Who Kwang SMPS power supplies. 9.3 -12v SMPS 1.35A is about 10-14 Euros. 12.5A version is going to cost you about 40 Euros.
These are completely clean PSUs. They have much less ripple than a computer PSU has which is why the price. Currently I am running a driver off 9.3v from one of the 16.2W versions. They're pretty small.
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650nm ~350mW DVD 20x diode RyanSoh3 Class IIIb
650nm ~350mW DVD 22x 3.5mm labby build 2010 Class IIIb
532nm 10mW-15mW DPSS Module IR filtered(S.Korea)RyanSoh3 Class IIIb
450nm CarbonFiber ElectricPlasma build 9mm +6W Class IV
445nm 3.49W pk ~3.15W av. Sinner Cypreus II +DTR 9mm 445nm Class IV
445nm RHD Saber Twins 2.7W ~2.35W pk Class IV
445nm A140 module x2 Maxsink Class IV
405nm Daguin Kryton Groove SO6J 700mW build. Class IV
405nm Olike 560mW-600mW pen sold Scopeguy20
Class IV
337.1nm TEA Nitrogen laser project 2011 Class IIIb
---------------------------------------------------
Die4Drivers 1.3v lab laser/projector driver

Laserbee 3.2W Deluxe LPM
ARGMeter 1.1v
Ophir 20C-A sensor

Peregrine 1.5.0 is working now on MacOSX Yay!!

Last edited by Seoul_lasers; 07-13-2010 at 11:23 PM.
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Old 07-14-2010, 10:26 PM #15
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Default Re: Die4laser driver sounds excellent!

Just send an email to robinbowden@die4laser.com and he'll take care of you, he's located in the UK.
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Optotronics RPL-500 & RPL-450 Melles Griot Beam Expanders 3x, 10x, 20x, Zoom 2.5x-10x
Nova Endeavor Series Laser - Average: 305.4mW Peak: 329.8mW
Nova Lasers X125, X150 & X175, DL100, BFGLaser 125mW

A-Laser Model AD66Y0PGD 660nm 200mW
DX-200 660nm & 532nm, Leadlights & numerous 5mw-100mW 532mn
IgorT (6x) 209mW & (PHR) 140mW, Kryton 155mW, Daguin 165mW
Wicked Lasers S3 Spyder Krypton 1W model and 750mW+ model (839mW)
Wicked Lasers S3 Spyder Arctic G1 (825mW) and Arctic G2 (805mW) SmartSwitch Technology V1 & V2 Models w/Expanded Optic Kits
Jayrob 18650 w/MicroBoost & CU Heatsink A140 Diode 900mW, 295mW Pen by Pontiacg5
Rifle v2 Full 1.2W,
Rifle v2 Full 500mW, Rifle v2 Full 300mW & Cyber 445 1.2W all focusable w/Full Lens Kits

Coherent's Newest High Performance LabMax-TOP Laser Power/Energy Meter Accuracy 1.0%, Power Resolution 0.00001 Statistical Analysis: Min, Max, Mean, Range, Std Dev, Energy Dose, & Stability; Trend Charting, Tuning, Beam Stability Analysis, Extra Large Positional Display (112mm x 78mm) and Data Logging to a USB Flash Drive Directly on the Meter or PC w/ LabView Software.

D4thing LPM (3W), Andover LPM-1, Optic kits, and Certified Safety Glasses for Green, Red & Blue Lasers.
Chargers: Pila IBC (Swiss Designed & Engineered) the Gold Standard (UL). Xtar SP2 & VP1, Soshine SC-S1max V3 EagleTac & KeepPower 18650 3400mAh AA/AAA La Crosse BC1000 Maha MH-C9000 Eneloops
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Old 07-14-2010, 11:31 PM #16
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Exclamation Re: Die4laser driver sounds excellent!

Quote:
Originally Posted by Olivia View Post
SL , many thnaks , however i hav been unable to source internationally or in UK

can you offer any pointers to source for purchase
DIGIKEY has them for sale.
__________________
650nm ~350mW DVD 20x diode RyanSoh3 Class IIIb
650nm ~350mW DVD 22x 3.5mm labby build 2010 Class IIIb
532nm 10mW-15mW DPSS Module IR filtered(S.Korea)RyanSoh3 Class IIIb
450nm CarbonFiber ElectricPlasma build 9mm +6W Class IV
445nm 3.49W pk ~3.15W av. Sinner Cypreus II +DTR 9mm 445nm Class IV
445nm RHD Saber Twins 2.7W ~2.35W pk Class IV
445nm A140 module x2 Maxsink Class IV
405nm Daguin Kryton Groove SO6J 700mW build. Class IV
405nm Olike 560mW-600mW pen sold Scopeguy20
Class IV
337.1nm TEA Nitrogen laser project 2011 Class IIIb
---------------------------------------------------
Die4Drivers 1.3v lab laser/projector driver

Laserbee 3.2W Deluxe LPM
ARGMeter 1.1v
Ophir 20C-A sensor

Peregrine 1.5.0 is working now on MacOSX Yay!!
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