P7 120VAC driver?

andersonEE · Apr 15, 2010

Are there any AC drivers for the P7? I've searched CPF and google and haven't found anything.

If not, what are some ways you have come up with to drive higher power led's (MC-E / P7) off AC.

Thanks.

gswitter · Apr 15, 2010

How about the SSC Acriche?

Illum · Apr 15, 2010

andersonEE said:
Are there any AC drivers for the P7? I've searched CPF and google and haven't found anything.

Thanks.

Something like this perhaps? :shrug:
http://www.dinodirect.com/5W-3-5V-3-8V-2A-Constant-Current-LED-Driver-110V-240V-AC/AFFID-15.html

The highest xitaniums are 1750ma, output good for 24V, or about 7 P7s:thumbsup:
http://www.ledsupply.com/xi-led120a0024v18f.php

Paul Baldwin · Apr 15, 2010

Hi,
this one doesn't supply the full 2.8 amp potential but it's the only one I can think of at the mo http://www.dealextreme.com/details.dx/sku.14034
I've been using pc power supplies and either suitable drivers or resistors. The power supplies are cheap (if not free) and easily up to the job. Just ground the green wire to the case to get them to work and pick whichever colour cable suits the voltage of your application, 3.3v,5v or 12v.

andersonEE · Apr 16, 2010

Paul Baldwin said:
Hi,
this one doesn't supply the full 2.8 amp potential but it's the only one I can think of at the mo http://www.dealextreme.com/details.dx/sku.14034
I've been using pc power supplies and either suitable drivers or resistors. The power supplies are cheap (if not free) and easily up to the job. Just ground the green wire to the case to get them to work and pick whichever colour cable suits the voltage of your application, 3.3v,5v or 12v.

What about if I put that 2 amp one in parallel with this one:
http://www.dealextreme.com/details.dx/sku.13552
That would give me 2.7amps.

I like the computer PSU idea (I even have a few laying around), but I'm worried that it would be very inefficient at such a low load.

Paul Baldwin · Apr 16, 2010

I was under the impression that switch mode power supplies coped well with different situations. The power supplies I've been using certainly don't get overly hot when in use even when driving an mc-e for hours at a time.