bryce007
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cool. Where did you get your 20A supply?
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FAP800 Question
- Thread starter Hemlock_Mike
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cool. Where did you get your 20A supply?
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MarlinPJones... MPJA - Power Supply, Power Supplies, Security Cameras, LCD, Fans, Etc.
Seems like a nice supply and so far, it has output 21 AMPS.
HMike
WOW - I didn't add all that stuff to my post for MPJ
Seems like a nice supply and so far, it has output 21 AMPS.
HMike
WOW - I didn't add all that stuff to my post for MPJ
bryce007
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That's it ! Don't expect good regulation below a couple watts! But it works good for 3 to 21 AMPS !!
HMike
HMike
bryce007
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Any site where you have to get a quote is bad news for price, lol.
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Brtaman sent me some info on a PTH08T250W module. It is a DC to DC switching converter capable of 50 GD AMPS !!!!! I ordered one from DigiKey.
Thanks for the info guy!! + rep for you....
Now -- I have it running at 20 Amps max from this new PS and it's HOT. Looks like I need to design a beam expander. I have tried a 6x telescope and at close range (~12") I get a good burning spot.
I still need to measure PO but this thing burns. Dim observed light but hot.
HMike
Thanks for the info guy!! + rep for you....
Now -- I have it running at 20 Amps max from this new PS and it's HOT. Looks like I need to design a beam expander. I have tried a 6x telescope and at close range (~12") I get a good burning spot.
I still need to measure PO but this thing burns. Dim observed light but hot.
HMike
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bryce007
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Bryce --
The info sent was the data sheet for the module and I tossed it as soon as I read the data. A quick google will find that Digikey has them for $60 each. Data sheets are also there.
HMike
That PTH08T250W module looks like it will take 12 volts from lead acid batteries and efficiently drop it into the ~2-3 volt range for these diodes. At only 15 amps, this lights charcoal briquets -- a good flat black, non-reflective target.
The info sent was the data sheet for the module and I tossed it as soon as I read the data. A quick google will find that Digikey has them for $60 each. Data sheets are also there.
HMike
That PTH08T250W module looks like it will take 12 volts from lead acid batteries and efficiently drop it into the ~2-3 volt range for these diodes. At only 15 amps, this lights charcoal briquets -- a good flat black, non-reflective target.
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bryce007
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found it! Let me know how it goes, I may have to order me one.
Vicor also makes DC-DC converters that might be applicable to powering these high amperage diodes off of 12v-24v. I saw something on PhotonLexicon about using them, and supposedly Dr. Lava was tinkering with it as well.
Edit: iirc, the 24v to 5v maxi converter is capable of 80 amps and has an output voltage range of .5v to 5.5v this goes for about $175 though so it may be cheaper to run the TI modules in parallel.
Edit: iirc, the 24v to 5v maxi converter is capable of 80 amps and has an output voltage range of .5v to 5.5v this goes for about $175 though so it may be cheaper to run the TI modules in parallel.
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bryce007
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is there anyway to mod these to make the current variable?
As far as the vicor module goes; yes, it is possible. This document posted on their site describes how. I'm sure the same principle could be applied to the TI module using its remote sense lines.
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Shane ---
I thought those remote sense ports might be handy. Thanks for the schematic. That shunt resistor will be a coil of wire at 50 Amps!
HMike
I dumped a little of this IR into an old SKY MCA crystal stack last night and got a bunch of GREEN
I didn't have time to focus or measure power.
I thought those remote sense ports might be handy. Thanks for the schematic. That shunt resistor will be a coil of wire at 50 Amps!
HMike
I dumped a little of this IR into an old SKY MCA crystal stack last night and got a bunch of GREEN
I didn't have time to focus or measure power.
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