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Redundant path power subsystem and operation method thereof

A technology of redundant paths and subsystems, applied in the field of fault-tolerant arrays, which can solve problems such as phase-level redundancy

Active Publication Date: 2014-01-01
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional systems utilize additional phase regulators (e.g., buck regulators) to achieve phase-level redundancy in a multi-phase regulator arrangement

Method used

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  • Redundant path power subsystem and operation method thereof
  • Redundant path power subsystem and operation method thereof
  • Redundant path power subsystem and operation method thereof

Examples

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Embodiment Construction

[0009] The following description includes exemplary systems, methods, techniques, instruction sequences, and computer program products that implement techniques of the inventive subject matter. However, it is understood that the embodiments may be practiced without these specific details. For example, although the examples refer to a serial peripheral interface (SPI) bus for communication between the multiplexing logic device and the microprocessor, the embodiments are not limited thereto. Embodiments may use a serial input / output exchange (SIOX) bus, a controller area network (CAN) bus, etc. for communication between the multiplexing logic device and the microprocessor. Embodiments are also not limited to utilizing an inter-integrated circuit (I2C) bus for communication between multiplexing logic and power supplies. Embodiments may utilize a System Management Bus (SMBus), Power Management Bus (PMBus), etc. for communicating between multiplexing logic and power supplies. In ...

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Abstract

The present invention overall discloses a redundant path power subsystem and an operation method thereof. The redundant path power subsystem comprises a plurality of phase regulators in a multi-phase power converter. The plurality of phase regulators comprises at least N+2 phase regulators. N phases are sufficient to serve an electrical load coupled with the redundant path power subsystem. The redundant path power subsystem also comprises a plurality of power supplies, and a plurality of input and control paths between the plurality of power supplies and the plurality of phase regulators. The plurality of input and control paths comprises a plurality of multiplexing logic devices and a plurality of phase controllers. The plurality of phase controllers is operable to control the plurality of phase regulators. The plurality of multiplexing logic devices is operable to multiplex control signals from the plurality of power supplies and a microprocessor for the plurality of phase controllers.

Description

technical field [0001] Embodiments of the inventive subject matter generally relate to the field of power systems, and more specifically, to controlling a fault-tolerant array of converters in a high-availability system. Background technique [0002] A high availability power system for a microprocessor includes components for power conversion, control, diagnostics, and communication in a single package that can be used in a redundant arrangement. However, for high availability, redundant control and monitoring systems are also utilized to monitor status, provide communication between the various elements of the power system, and detect faults for maintenance purposes. Traditional systems utilize additional phase regulators (eg, buck regulators) to achieve phase-level redundancy in a multi-phase regulator arrangement. The phase adjuster is isolated from the other phases using a protection circuit. When a phase regulator fails, one of the additional phase regulators provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/16
CPCG06F13/00H02M1/00G06F1/28G06F1/305G06F1/26G06F1/263H02J1/10H02J5/00
Inventor D·J·巴鲁斯K·R·科维W·P·科斯滕科J·P·李P·A·文德玲
Owner IBM CORP