UHP lamp. How to turn it on?

alapimba · 30th January 2005, 06:35 PM

Hello i had a projector that was with eletronic problems so i decided to open it and get all parts i could from it to build a DIY projector.
Well now i have a 100w UHP lamp and the control Board of it. But i don't know how to power it up... In the projector it was connected to a power suply board that was there to give power to the light, fans, lcd's, and all that stuff that i have no idea what it was.
Now i just want to use the light.. how to power it up?
Here is 2 pictures. one of the lamp and one of the board.

Me2! · 31st January 2005, 05:13 AM

Good question. If you figure out how to get it going let us know and you might have us all switching to UHP bulbs. No heat worries and precise output.

It should be a great lamp if you can use it with a standard ballast.

alapimba · 31st January 2005, 11:27 PM

A friend told me that i would need a 365v DC stabilized power supply...
i'll keep investigating and will update this thread while i know more things about this UHP bulbs.

Mission313 · 2nd February 2005, 02:35 PM

I just came across 2 new 120watt UHP bulbs. I need to build power supplies. I did some reading on the net and i guess you need 65v operating voltage and 5kv starting vloltage for 120W UHP bulbs. So now a ballast serch begins. I am thinking a 100-150watt HPS starter and ballast may work.

alapimba · 2nd February 2005, 02:53 PM

what is a 100-150watt HPS starter?
Let me know what you are planing to buy and how you will use it.

altor · 2nd February 2005, 04:00 PM

Don't use HPS starter with UHP Lamp !!!!!
The lamp will explode !

Put 400v at the ballast's input, and if it OK - than lamp will work, but don't forget that you should provide cooling for the lamp (znd the ballast)

In the projector, 400v goes from the Power Factor Corrector (PFC).

alapimba · 2nd February 2005, 04:08 PM

Quote:

Put 400v at the ballast's input, and if it OK - than lamp will work, but don't forget that you should provide cooling for the lamp (znd the ballast)

How this can be done? the other guy told me i just needed a 365v dc stabilized power supply to power the light board and then the lamp will light. Can you explain me how to do this?
It's hard?

altor · 2nd February 2005, 06:05 PM

Quote:

Originally posted by alapimba

How this can be done? the other guy told me i just needed a 365v dc stabilized power supply to power the light board and then the lamp will light. Can you explain me how to do this?
It's hard?

The lamp driver ("ballast) - is powered from the PFC.
The output PFC voltage - is near 400v.
So, You need 400v DC stabilized power supply.

P.S. On the photo - the old Philips ballst. Next generation of this devices for 120W UHP (you can see it in many InFocus's' projectors) - was developed in our company 5 years ago.

alapimba · 2nd February 2005, 06:17 PM

Where can i find a power factor corrector?
Can you show me a picture of one power factor corrector?
This is something danger to do due to the high voltage?
It's more dangerus than a HQI light set?
Do you think i should tyr to find a new ballast(lamp driver) for use with my lamp or this one should be good enought?
This lamp driver only has 2 cables comming from it.. one use to connect to the power suply board and other to another board called "small signal board" i assume this cable has no need to light up the lamp, right?

The PFC connects direct to the pins on the board?

Thanks for your help.

altor · 2nd February 2005, 06:28 PM

Quote:

Can you show me a picture of one power factor corrector?

See datasheets of the L6561 (STMicro), MC33262 (Motorola), etc.

But you don't need exaclty PFC - its possible to use any 400VDC-output, 120W Power supply.

30th January 2005, 06:35 PM	#1
alapimba diyAudio Member Join Date: Dec 2004 Location: Carnaxide	UHP lamp. How to turn it on? Hello i had a projector that was with eletronic problems so i decided to open it and get all parts i could from it to build a DIY projector. Well now i have a 100w UHP lamp and the control Board of it. But i don't know how to power it up... In the projector it was connected to a power suply board that was there to give power to the light, fans, lcd's, and all that stuff that i have no idea what it was. Now i just want to use the light.. how to power it up? Here is 2 pictures. one of the lamp and one of the board.

31st January 2005, 05:13 AM	#2
Me2! diyAudio Member Join Date: Dec 2004 Location: BC	Use UHP bulb Good question. If you figure out how to get it going let us know and you might have us all switching to UHP bulbs. No heat worries and precise output. It should be a great lamp if you can use it with a standard ballast.

2nd February 2005, 02:35 PM	#4
Mission313 diyAudio Member Join Date: Apr 2002 Location: Detroit	RE I just came across 2 new 120watt UHP bulbs. I need to build power supplies. I did some reading on the net and i guess you need 65v operating voltage and 5kv starting vloltage for 120W UHP bulbs. So now a ballast serch begins. I am thinking a 100-150watt HPS starter and ballast may work.

2nd February 2005, 04:00 PM	#6
altor diyAudio Member Join Date: Oct 2003 Location: Europe-Asia	Don't use HPS starter with UHP Lamp !!!!! The lamp will explode ! Put 400v at the ballast's input, and if it OK - than lamp will work, but don't forget that you should provide cooling for the lamp (znd the ballast) In the projector, 400v goes from the Power Factor Corrector (PFC). __________________ Regards, Alex

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31st January 2005, 11:27 PM	#3
alapimba diyAudio Member Join Date: Dec 2004 Location: Carnaxide	A friend told me that i would need a 365v DC stabilized power supply... i'll keep investigating and will update this thread while i know more things about this UHP bulbs.

2nd February 2005, 02:53 PM	#5
alapimba diyAudio Member Join Date: Dec 2004 Location: Carnaxide	what is a 100-150watt HPS starter? Let me know what you are planing to buy and how you will use it.

2nd February 2005, 06:17 PM	#9
alapimba diyAudio Member Join Date: Dec 2004 Location: Carnaxide	Where can i find a power factor corrector? Can you show me a picture of one power factor corrector? This is something danger to do due to the high voltage? It's more dangerus than a HQI light set? Do you think i should tyr to find a new ballast(lamp driver) for use with my lamp or this one should be good enought? This lamp driver only has 2 cables comming from it.. one use to connect to the power suply board and other to another board called "small signal board" i assume this cable has no need to light up the lamp, right? The PFC connects direct to the pins on the board? Thanks for your help.

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