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Old 08-16-2011, 06:53 AM #1
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Default 100W 808nm Bar <50$

100W 808nm QCW High Power Laser Diode Bar / Array, DPSS | eBay

Same seller:

100W 808nm QCW High Power Laser Diode Bar / Array, DPSS | eBay



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Old 08-16-2011, 07:26 AM #2
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Default Re: 100W 808nm Bar <50$

I reckon you will have an issue supplying it with the needed current... LOL

•Operating Current: around 100~110A
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Old 08-16-2011, 08:37 AM #3
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Default Re: 100W 808nm Bar <50$

well it seems im the highest bidder... Not quite sure how I will use it though... assuming I get it, which I doubt.
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Old 08-16-2011, 04:32 PM #4
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Default Re: 100W 808nm Bar <50$

well I actually won...

Now to power this thing...
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Old 08-16-2011, 05:06 PM #5
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Default Re: 100W 808nm Bar <50$

Quote:
Originally Posted by bhwollen View Post
well I actually won...

Now to power this thing...


I don't know But i Want Review!

Or sell it!
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Old 08-16-2011, 06:12 PM #6
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Default Re: 100W 808nm Bar <50$

I bet it'll cutchoo good if you stick your hand up ons.
You will probably have to wire it right into the supply lines for your house to get over 100 amps :P
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Old 08-16-2011, 07:35 PM #7
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Default Re: 100W 808nm Bar <50$

Well, your probably gonna have to buy a thousand dollar or up PSU...
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Old 08-16-2011, 07:40 PM #8
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Default Re: 100W 808nm Bar <50$

Buy 2 of these 350W 5V DC 50A Regulated Switching Power Supply [K001] | eBay
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Old 08-16-2011, 07:42 PM #9
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Default Re: 100W 808nm Bar <50$

BH:

If it was me, I'd parallel 20x 1084 based linear drivers, with balancing resistors. Then I'd feed it from some kind of 500W computer PSU.

But that's just my odd style.
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Old 08-16-2011, 07:43 PM #10
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Default Re: 100W 808nm Bar <50$

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Originally Posted by eytyxhs View Post
I think you would still need something like a linear driver (array?) in between, otherwise the PSU might try to regulate the voltage at 5V, which would be too high for the diode bar?
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Old 08-16-2011, 08:39 PM #11
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Default Re: 100W 808nm Bar <50$

If its the 100w 808nm from sinolaser then it's a QCW diode bar! and needs a maximum of a 20% duty cycle, it's typical "on" time is 300us
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Old 08-16-2011, 08:57 PM #12
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Default Re: 100W 808nm Bar <50$

You guys might want to watch this.

50 808nm 1W HIGH POWER BURNING LASER DIODE DPSS GREEN | eBay


Only $37 after a few bids. Even if it's $200 dollars by the time it ends that's only $4 per diode.
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Old 08-16-2011, 10:03 PM #13
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Default Re: 100W 808nm Bar <50$

Quote:
Originally Posted by RED View Post
If its the 100w 808nm from sinolaser then...needs a maximum of a 20% duty cycle
I'm pretty sure they're fine at 60W CW.
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Old 08-16-2011, 10:17 PM #14
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Default Re: 100W 808nm Bar <50$

Quote:
Originally Posted by Cyparagon View Post
I'm pretty sure they're fine at 60W CW.
i've also recently bought one of these 100watts, in the process of putting together the QCW driver. If you are right, then it sure would make things easier. The pulse timing is the easy part, its the pulse amplifier that has been causing complications, but I may have it right with my last attemp (been trying to get a clean square waveform after the huge amplification).
Also dont just want to apply CW, in case I bust the diode!
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Old 08-18-2011, 07:20 AM #15
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Default Re: 100W 808nm Bar <50$

Would that actually work? lol
Quote:
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BH:

If it was me, I'd parallel 20x 1084 based linear drivers, with balancing resistors. Then I'd feed it from some kind of 500W computer PSU.

But that's just my odd style.
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Old 08-18-2011, 02:17 PM #16
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Default Re: 100W 808nm Bar <50$

Or about 300 AMC7135

Buy seriously, I remember somewhere on here seeing someone talk about using a mosfet as a current sink. Don't remember how exactly but I'm sure it wouldn't be very hard to find. You should be able to find some mosfets able to handle that current, maybe parallel a couple.
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