Old 06-22-2015, 04:17 PM #1
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Default Buck driver at 5.5amps

Can anyone point me to a buck type driver that can produce upto 5.5amps? I did some searching and all I came across is boost drivers that go that high. So if some one can point me in the right direction that would be awesome thanks.


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Old 06-22-2015, 07:41 PM #2
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Default Re: Buck driver at 5.5amps

http://laserpointerforums.com/f39/su...ity-93659.html

EDIT: Oops, you said BUCK.... I think he can make one for you which will do that as a BUCK too. PM him. If not him, try member TheLightningStalker or Flaminpyro but he drives me nuts for not listing the ratings with them: http://laserpointerforums.com/f39/sa...tml#post910006 - Maybe he has a page with that info somewhere I haven't found.
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Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 06-22-2015 at 08:06 PM.
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Old 06-22-2015, 08:11 PM #3
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Default Re: Buck driver at 5.5amps

Thanks Alaskan I will try them out, I have a pm sent to flaminpyro already just wait for his reply.
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Old 06-22-2015, 09:29 PM #4
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Default Re: Buck driver at 5.5amps

This seller in Poland has some 5 amp drivers, not cheap but good, this one on sale right now:

Sale Laser Diode Driver 0 5A 100KHz Analog TTL 405nm 445nm 635nm 650nm 3 12V | eBay

Only problem is for most pointers the size is fairly large @ 35 X 20mm, might be able to do more than 5 amps if you heat sink it enough and have the DC supply voltage as low as possible for the device drop out. This seller is always quick to answer technical questions and the device maximums he uses are often far more than they are listed to be good for. Keep the DC voltage at a minimum and the proper heatsink and I bet it will do more than 5 amps.
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 06-22-2015 at 09:39 PM.
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Old 06-22-2015, 11:05 PM #5
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Default Re: Buck driver at 5.5amps

Right on I will look into that as well thanks just spoke with dtr and he said he has super xdrives that do 5amps if heatsinked properly
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Old 06-22-2015, 11:10 PM #6
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Default Re: Buck driver at 5.5amps

Yep the SXD is a great choice. I have some and you can get some from Flaminpyro.
Actually the first item on his sales page.
http://laserpointerforums.com/f39/x-...ost-88589.html
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Old 06-23-2015, 12:11 AM #7
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Default Re: Buck driver at 5.5amps

There's the page I needed to find, has current specs!
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3
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