LIGO Document E1300114-x0

DCN for component changes to LSC Style RFPD

Document #:
LIGO-E1300114-x0
Document type:
E - Engineering documents
Abstract:
Details of the component changes to render this design insensitive to loss of a single power supply.
Files in Document:
None
Authors:
Keywords:
DCN RFPD
Notes and Changes:
In response to the single supply failure mechanism intrinsic to this design, the following components were changed: U2 from AD8597 to LT1128, U8 & U10 from AD8675 to OP27, C31 removed to aid stability of LT1128. Reverse biased diodes are added across the main filter caps in the + and - 15VDC rails.
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