ETM Low Voltage Low Noise Electro-Static Driver Main Board

Document #:

LIGO-D1500016-v3

Document type:

D - Drawings

Abstract:

A circuit to permit a lower voltage control of the ESD actuation to supplement the high voltage ESD amplifiers. Provisions are made to incorporate the stray upgrades that are present in the field as well as to provide new functionality as prompted by operational experience running the existing ESD system

Files in Document:

• PDF of Schematic, BOM and Layout (ETM LVLN Driver_v3.pdf, 2.0 MB)

Other Files:

• Altium Project Files (Zipped) (ETM LVLN Driver_v3 (11-18-2015 3-31-14 PM).zip, 3.0 MB)
• Bill of materials in Excel format (ETM LVLN Driver_BOM_v3.xlsx, 18.6 kB)
• LVESD_PI_channel_TF_Plot (LVESD_PI_TF_Comparison_Plot.pdf, 24.0 kB)
• Pick and Place Files in CSV and Text Format (Pick Place for ETM LVLN Driver_v2.csv, 60.1 kB)
• Zipped gerber files for manufacture (ETM LVLN Driver.zip, 307.8 kB)
• odb++ Files (ETM LVLN DriverODB_v2.zip, 859.6 kB)

ICS/JIRA Record:

• ICS_LINK

Topics:

• Sensing and Control

Authors:

• Rich Abbott
• Peter Fritschel

Keywords:

ESD Driver

Notes and Changes:

version 3 - Component value changes per ECR E1500341
1. Changed C32 in monitoring amplifier from 1uF to 10nF to put the pole frequency at 4.244kHz
2. Changed C36 in the summing node from 1uF to 0.047uF to increase the dynamic range of the normal quadrant path such that inspiral waveforms may be adequately injected at higher frequencies
3. Corrected typo on DAC noise spectrum from 800uV to 800nV

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