UHP lamp. How to turn it on? - diyAudio
Go Back   Home > Forums > General Interest > Everything Else > The Moving Image > Lighting and OHP

Lighting and OHP any lighting ideas and ohp info

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 30th January 2005, 05:35 PM   #1
diyAudio Member
 
alapimba's Avatar
 
Join Date: Dec 2004
Location: Carnaxide
Default 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.
Click the image to open in full size.
Click the image to open in full size.
  Reply With Quote
Old 31st January 2005, 04:13 AM   #2
Me2! is offline Me2!  Canada
diyAudio Member
 
Me2!'s Avatar
 
Join Date: Dec 2004
Location: BC
Default 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.
  Reply With Quote
Old 31st January 2005, 10:27 PM   #3
diyAudio Member
 
alapimba's Avatar
 
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.
  Reply With Quote
Old 2nd February 2005, 01:35 PM   #4
diyAudio Member
 
Join Date: Apr 2002
Location: Detroit
Send a message via Yahoo to Mission313
Default 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.
  Reply With Quote
Old 2nd February 2005, 01:53 PM   #5
diyAudio Member
 
alapimba's Avatar
 
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.
  Reply With Quote
Old 2nd February 2005, 03:00 PM   #6
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
www.altor.co
  Reply With Quote
Old 2nd February 2005, 03:08 PM   #7
diyAudio Member
 
alapimba's Avatar
 
Join Date: Dec 2004
Location: Carnaxide
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?
  Reply With Quote
Old 2nd February 2005, 05:05 PM   #8
diyAudio Member
 
Join Date: Oct 2003
Location: Europe-Asia
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.
__________________
Regards, Alex
www.altor.co
  Reply With Quote
Old 2nd February 2005, 05:17 PM   #9
diyAudio Member
 
alapimba's Avatar
 
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.
  Reply With Quote
Old 2nd February 2005, 05:28 PM   #10
diyAudio Member
 
Join Date: Oct 2003
Location: Europe-Asia
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.
__________________
Regards, Alex
www.altor.co
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Full-turn/partial-turn pots slowpogo Parts 1 12th January 2007 07:40 AM
SAE 2400 turn on/turn off pop Glen B Solid State 16 31st July 2006 01:32 AM
How can I reduce mechanical turn on and turn off noise? soundNERD Chip Amps 8 28th October 2003 01:43 AM


New To Site? Need Help?

All times are GMT. The time now is 09:10 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2