ECR PUM Driver LP Filter Changes for ITMs and ETMs

Document #:

LIGO-E2100204-v3

Document type:

E - Engineering documents

Abstract:

A proposed shift in the frequency of the input filter to the D070483-v7 circuit to allow more dynamic range when in the "State 3" mode of input LP filter on, Acquisition filter off mode.

Files in Document:

• PDF Version (ECR_AS_PUM_DriverFilterShift_v3.pdf, file is not accessible)

Other Files:

• Word Version (ECR_AS_PUM_DriverFilterShift_v3.docm, file is not accessible)

Topics:

• Suspensions

Authors:

• Rich Abbott

Notes and Changes:

This version of this ECR fixes a typo in the Description of Proposed Change(s): from D2100205 to E2100205. Also in the description, there are several words telling what the reader will find in E2100205. No technical content/intent has been changed by this version update.

Related Documents:

Referenced by:

• LIGO-D1100303-v1: aLIGO Production PUM Coil Driver Chassis Top Assembly Drawing