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ecir38  
#1 Posted : Wednesday, November 7, 2007 12:10:31 PM(UTC)
ecir38

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I am looking at purchasing the LCPS and have a couple of questions. First I will be using this in a limited space and need to know the dimensions of the pcb and posibly the height of the tallest component on the board which I think will be the heatsinks.
Brian Donegan  
#2 Posted : Wednesday, November 7, 2007 12:32:02 PM(UTC)
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The LCPS has been replaced by the LCDPS (Dual Power Supply) and LCBPS (bipolar Power Supply).

Both are 2.2" x 3" (same as all the Opus modules and all of our upcoming boards). the hight is dictated by the heatsinks, which are 1". The supplied standoffs are .5" tall. when you add in board thickness, you have approx 1-5/8". You can add your own smaller standoffs to chop the height a bit if needed.

ecir38  
#3 Posted : Wednesday, November 7, 2007 1:34:49 PM(UTC)
ecir38

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Thanks for the quick response Brian. My bad I am looking at using the LCDPS, sounds like this may work.

I am looking at using this for a cd player that requires a 7.6v and 3.6v source. I was wondering I could replace the 15v+15v 15VA that's needed with a 9v+9v 15VA version to achieve what I am looking for? Thinking this way would not put out as much heat.
Unless the 15v+15v would be alright.

Edited by user Wednesday, November 7, 2007 1:35:33 PM(UTC)  | Reason: Not specified

Brian Donegan  
#4 Posted : Wednesday, November 7, 2007 1:38:09 PM(UTC)
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9+9V woudl be just fine (I don't have then however).

ecir38  
#5 Posted : Wednesday, November 21, 2007 4:09:40 PM(UTC)
ecir38

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Will it be within the forum rules to ask some questions about using this power supply with a cd player?

Edited by user Wednesday, November 21, 2007 7:30:17 PM(UTC)  | Reason: Not specified

Brian Donegan  
#6 Posted : Friday, November 23, 2007 4:37:54 PM(UTC)
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Sure.
ecir38  
#7 Posted : Sunday, November 25, 2007 12:38:02 PM(UTC)
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The cd player I am thinking this may work with is the Sony playstation SCPH-1001 which you probably have seen discussed at diyaudio.com in the digital section here http://www.diyaudio.com/...hp?s=&threadid=31123

Mick Feuerbacher who is very active in this thread has a website that describes all of the mods to the playstation. He has built a linear power supply that gives good results with PS1 which can be found here http://dogbreath.de/PS1/...PSU_V2/LinearPSU_V2.html The plan was to build his LPS since it was built around the PS1, then someone posted a link to your LCDPS.

Your LCDPS is more attractive with the size, pcb layout and price point. I am just not sure how it would perform in a CDP and I guess the only way to really find out is to purchase one to try out. I was just wondering if you could give your opinion on if this will be worth a shot. I think the biggest concern is we are working with a motor and not just electronics if that matters.

Here are the requirements that are needed for the PS1. The cd motor and laser duties require 7.6V which pulls 0.8 to 1A at startup and stop, 250mA when idle and 450mA when playing. 3.6V is also needed for the dac and everything else on the board which draws a constant 500mA. Mick also mentions that 8V*1A + 4V*1A = 12A is needed and in order to have some headroom recommends 25VA toroid. That’s where I thought that a 9+9V 25VA might be a good choice here. I know one other person that is interested in this and hopefully others would follow if this works out.

Thanks
dj_oatmeal  
#8 Posted : Saturday, December 1, 2007 8:29:01 AM(UTC)
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I would also like to know if this will work for the PS1. Thank you.
OneyedK  
#9 Posted : Wednesday, December 5, 2007 4:08:26 AM(UTC)
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Brian Donegan wrote:
The LCPS has been replaced by the LCDPS


Hello Brian,

Is it possible to order the LCDPS separately? (I'd like to use it for another project of mine)
ecir38  
#10 Posted : Wednesday, December 5, 2007 5:04:05 PM(UTC)
ecir38

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OneyedK wrote:
Brian Donegan wrote:
The LCPS has been replaced by the LCDPS


Hello Brian,

Is it possible to order the LCDPS separately? (I'd like to use it for another project of mine)


here's the link
http://www.twistedpearaudio.com/lcps/lcps.aspx
audiosteve  
#11 Posted : Sunday, December 9, 2007 10:58:29 AM(UTC)
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Hello Brian or Russ,

What is the current rating of the LCDPS? d'oh!
[d'oh!] I Ask because I need 10V at 200 mA??

Thanks
OneyedK  
#12 Posted : Monday, December 10, 2007 2:20:21 AM(UTC)
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Thanks! I overlooked that one...
Brian Donegan  
#13 Posted : Sunday, December 16, 2007 10:05:38 AM(UTC)
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audiosteve wrote:
Hello Brian or Russ,

What is the current rating of the LCDPS? d'oh!
[d'oh!] I Ask because I need 10V at 200 mA??

Thanks


1.5A (dependent on the LM317/337). Should be plenty for you.
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