UHP lamp. How to turn it on?

[alapimba]

oh a PFC is like a chip.. i have to build a board.. well that way it's completely out.
i'm trying to find a power suply with 400vdc output but i can't find any online. well at least something that it's not of my size.. lol..
can you point me to a site or something?
thanks again

[altor]

No, PFC is not oly "a chip" - it is also a coil, power mosfet, power diode and electrolitic capacitor.
Unfortunately, I cant provide You a site, where You can buy power supply.
Try to buy a transformer, let say 120-150W with 280-300v out, and use rectifier bridge and electrolitic capacitor, at least 250 uF 450V. I think it will work.

BTW, why not to use PFC from You projector ? You said that projector have some problems in electronics, maybe PFC is good ?

[ace3000_1]

Guys a couple of things your missing here.

1), The danger!!!, this stuff is potentionally lethal. If you dont know what your doing either take it to a trained personel or dont do it at all.

2) Why make a 400v psu when it already has one? Its got the ballast right there in the pic, why make another?

3) UHP bulbs MUST be run to their exact spec or they wont fire at all. They are very sensitive and unless you have the correct voltage/amperage to spec it wont fire. Even a 5v difference wont make it fire.

4) Just because this light has a very nice reflector doesnt mean it will work on your lcd. The beam pattern on these lights are so perfected for very small DLP/LCD chips quite often its impossible to get it to work on anything larger. Unless this reflector is an ellipsidal it wont work.

5) These lamps must have cool air on them in the apropiate place. Failing to do so will either overheat the bulb or the bulb will explode.

My advice. Simple, run the lamp on its original gear in its original configeration. This way its safe and you wont spend a dime to soon see that it wont/will work on your lcd.

Trev

[alapimba]

Thanks for your advices Trev.

I tried to run it from the original gear but i don't know why, i was not able to do that. the power suply also has plugs for the fans and even the fans i was not able to power up. so my problem is probably on the power suply board.

Assuming that the power suply board is the problem and the light board is working fine..(everything worked before i open up the projector to remove the light the fans and the objective) if i wanted to power it up what i would need, to give 365v to the board? it's something not safe? it's big? I'm building a projector with a 5" lcd to try everything (this is my first time ) and obvious to make it small...but so far everything i see with that voltage is something really big..and really PRO.

After all the ppl that told me to be careful about the high voltage (ppl on other forum told me to take care about this issue too) i guess it's better starting really thinking in sell this lamp together with the driver board and buy an HQI light set

Well i don't know how to plug an HQI lamp too but i assume it's something easier...

[altor]

I'm agree with ACE_30000 - be very careful with igh voltage, and with UHP's light beam.

I've tried - 120W UHP burn a hole in a paper, in a 20cm distance from the lamp !

[alapimba]

Anyone knows anything about BriteArc lamps? If so or if not please check my other thread: Sylvania BriteArc lamp

Thank you