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 Tue May 24 00:21:31 2011, Zach, Electronics, GYRO, revised PDH2 schematic 
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 Tue May 24 19:56:08 2011, Zach, Electronics, GYRO, revised PDH2 schematic
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Thu May 26 06:28:59 2011, Frank, Electronics, GYRO, revised PDH2 schematic
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Thu May 26 09:17:44 2011, Zach, Electronics, GYRO, revised PDH2 schematic
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Fri May 27 10:15:26 2011, Frank, Electronics, GYRO, revised PDH2 schematic
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Fri May 27 10:20:47 2011, Zach, Electronics, GYRO, revised PDH2 schematic
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Mon May 30 15:22:22 2011, rana, Electronics, GYRO, revised PDH2 schematic
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Tue May 31 15:59:21 2011, Zach, Electronics, GYRO, revised PDH2 schematic
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Message ID: 1428
Entry time: Fri May 27 10:20:47 2011
In reply to: 1427
Reply to this: 1429
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| Author: |
Zach |
| Type: |
Electronics |
| Category: |
GYRO |
| Subject: |
revised PDH2 schematic |
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We are going to power the servos and the PDs from the NIM crate. Rich thinks that there shouldn't be a problem since there is very little area within the loop (because the power supply cables and RF signals travel next to each other from the table to the rack). If we have a problem we will transformer couple the inputs to the mixers from the PDs.
| Quote: |
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the originial power supply already has +/-15V, that's why there are 12V regulators inside. If you wanna change it to 15V regulators in the box you have to replace the power supply too. If you want to use a centralized power source then you need differential or transformer coupled inputs/outputs to remove ground loops
| Quote: |
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Huh? I'm not sure I understand the significance of going from +/-12V to +/-15V. Is one special?
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