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Entry  Wed Dec 15 15:41:45 2010, Alastair & Zach, Electronics, General, RFPD design RFPD_1.pdf
    Reply  Wed Dec 15 22:29:27 2010, Frank, Electronics, General, RFPD design 
       Reply  Wed Dec 15 22:36:05 2010, Alastair, Electronics, General, RFPD design 
    Reply  Thu Dec 16 03:50:33 2010, rana, Electronics, General, RFPD design: comments 
       Reply  Thu Dec 16 15:27:12 2010, Alastair, Electronics, General, RFPD design: comments 
       Reply  Fri Dec 17 22:07:00 2010, Alastair, Electronics, General, RFPD design: comments 
Message ID: 1220     Entry time: Wed Dec 15 22:36:05 2010     In reply to: 1219
Author: Alastair 
Type: Electronics 
Category: General 
Subject: RFPD design 

You mean we don't want two +/- connectors run from two separate supplies?  I only put them on there because we are planning on running it from the NIM crate.  You're right though that we should make it just one +/- supply because it is meant to be a general design.  I'll alter it so the 5v regulators are powered from the 15v ones.  Thanks.

I do have a question for someone about how we make up the board.  At the moment we're modifying the aLIGO design, and it has all the power planes inside the board.  My question is this - do we want to add in two extra planes to take the +/-15v to the other opamps?  The number of layers is starting to look like a lot.

Quote:

you don't wanna have 4 power supplies to power the detector, way too complicated. I would change it to power the entire thing by +/-24V and regulate that to +/-15V. Then use the already regulated +/-15V to regulate it down to something else in addition.

 

 Here is our layout for the RFPD in Altium.  We are working on routing the board now.

 

 

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