17851334. INPUT CURRENT LIMITING FOR REDUNDANT POWER SUPPLY LOSS ON MODULAR PLATFORMS simplified abstract (Dell Products L.P.)
Contents
INPUT CURRENT LIMITING FOR REDUNDANT POWER SUPPLY LOSS ON MODULAR PLATFORMS
Organization Name
Inventor(s)
Craig A. Klein of Elgin TX (US)
Geoff A. Dillon of Pflugerville TX (US)
Alexander J. Hoganson of Austin TX (US)
INPUT CURRENT LIMITING FOR REDUNDANT POWER SUPPLY LOSS ON MODULAR PLATFORMS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17851334 titled 'INPUT CURRENT LIMITING FOR REDUNDANT POWER SUPPLY LOSS ON MODULAR PLATFORMS
Simplified Explanation
An information handling system is described in this patent application. It consists of power supplies, a chassis BMC (Baseboard Management Controller), and a sled. The power supplies indicate when they are providing power on a power rail. The chassis BMC receives these indications and detects a loss of redundancy if one of the power supplies fails. The sled, which includes a sled BMC and a host processing system, receives the loss of redundancy indication and responds by indicating an over-temperature condition to the host processing system.
- The power supplies assert a power good indication when they are providing power on a power rail.
- The chassis BMC receives the power good indications and detects a loss of redundancy if one of the power supplies fails.
- The sled receives the loss of redundancy indication and asserts a processor over-temperature indication to the host processing system.
- The chassis BMC directs the sled BMC to operate the host processing system with a normal operation sled current limit when both power supplies are providing power.
- If one of the power supplies fails, the chassis BMC directs the sled BMC to operate the host processing system with a reduced power operation sled current limit, which is lower than the normal limit.
Potential applications of this technology:
- Data centers and server farms where redundancy and power management are critical.
- Any information handling system that requires continuous operation and protection against power supply failures.
Problems solved by this technology:
- Ensures continuous operation of the host processing system even if one power supply fails.
- Prevents over-temperature conditions in the host processing system by reducing power consumption when redundancy is lost.
Benefits of this technology:
- Improved reliability and uptime of information handling systems.
- Enhanced protection against power supply failures and potential damage to the host processing system.
- Efficient power management by reducing power consumption when redundancy is lost.
Original Abstract Submitted
An information handling system includes first and second power supplies, a chassis BMC, and a sled. The power supplies each assert a power good indication when the power supply is providing power on a power rail. The chassis BMC receives the power good indications and asserts a loss of redundancy indication when one of the power good indications is deasserted. The sled includes a sled BMC and a host processing system. The sled receives the loss of redundancy indication and in response, asserts a processor over temperature indication to the host processing system. When both power good indications are asserted, the chassis BMC directs the sled BMC to operate the host processing system in accordance with a normal operation sled current limit. When one of the power good indications is deasserted, the chassis BMC directs the sled BMC to operate the host processing system in accordance with a reduced power operation sled current limit. The reduced power operation sled current limit is a lower limit than the normal operation sled current limit.
