Power Supply Protection Circuit

Document #:

LIGO-D1101816-v2

Document type:

D - Drawings

Abstract:

A circuit for use with highly sensitive power application such as in-vacuum electronics or the like. This design is rated at up to +/- 26VDC at +/- 1ADC. The circuit protects against reverse polarity, missing supply rail, and provides a soft start to protect sensitive circuitry.

Files in Document:

• PDF of Schematic and Layout (DC_power_v2.pdf, 305.2 kB)
• Zipped gerber files for manufacture (DC_power_v2.zip, 69.5 kB)

Other Files:

• Altium Project Files (zipped) (DC_power_v2 (1-10-2012 3-46-04 PM).zip, 82.1 kB)
• Bill of materials in Excel format (DC_power_bom_v2.xlsx, 9.6 kB)
• ODB++ Files (DC_power_ODB.zip, 171.5 kB)

ICS/JIRA Record:

• ICS_LINK

Topics:

• Basic R&D
• Sensing and Control

Authors:

• Rich Abbott

Keywords:

DC power protection

Notes and Changes:

Revision 2 changes the order of stages to correct a minor instability under load that was discovered after evaluation of the first version.

Referenced by:

• LIGO-E1200796: DCN for initial mass release of ISC drawings