IC Supports Primary-Side Power Monitoring

by Dave Cooper, Application Manager, Potentia Semiconductor, Ottawa, Canada, Power Electronics Technology, Jan 01 2005

Focus:
In distributed power architectures where the motherboard or backplane feeds a 48-V bus to plug-in cards, brick-style dc-dc converters often provide isolation between the 48-V bus and the card-level circuitry. For systems that are mission critical, monitoring the 48-V bus can detect important faults before they impair system operation.

What you’ll learn:

• How to perform primary-side (48-V power bus) monitoring in distributed power architectures
• How to implement card-seat detection; input voltage and current measurement; detection of undervoltage, overvoltage, and overcurrent conditions; fuse failure detection; and inrush limiter status on the 48-V input to telecom cards
• How to perform primary-side (48-V power bus) monitoring using the PS-1006

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