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planters
02-16-2013, 19:26
I am looking for a reliable power supply that is not generously rated for 30+ amps. I am driving some pretty expensive 808nm diodes and I am looking for an alternative to my stack of collected Mean Well units. I know that from time to time some good options are mentioned in various threads, but a search is not bringing anything up and I was too lazy to note them earlier. Any suggestions?

sugeek
02-17-2013, 05:10
I know I have heard well of vicor power supplies - http://www.vicorpower.com/ . I would still wait for steve and others to chime in.

krazer
02-17-2013, 18:31
Are you looking for a benchtop type supply or something that you can integrate into your projector? If the benchtop one I would turn to ebay and get an old aglient/hp supply (the older style one with analog knobs or the newer style digital ones would both be fine for you application, I prefer the new style ones since they are more repeatable...) This one is pretty beat up but would do the job http://www.ebay.com/itm/HP-6268A-DC-POWER-SUPPLY-0-40V-0-30A-TESTED-WORKING-/281065475478?pt=LH_DefaultDomain_0&hash=item4170cecd96 a really beat up 'new' style one http://www.ebay.com/itm/HP-6652A-System-DC-Power-Supply-0-20V-0-25A-Powered-On-Cracked-Display-/360594376152?pt=LH_DefaultDomain_0&hash=item53f51985d8 the 6259a/b or 6261a/b would also work nicely If you have money to spend check out this beast http://www.ebay.com/itm/HP-6651A-SYSTEM-DC-POWER-SUPPLY-0-8V-050A-/360506185777?pt=LH_DefaultDomain_0&hash=item53efd7d831

For integrating into a projector, look into the vicor modules, they are pricey (will run you about $200) and you have to add in your own parts to run constant current (see http://cdn.vicorpower.com/documents/application_notes/an_ConstantCurrent.pdf) but are the best way to get a compact driver module.