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Redundant hot standby power management device for power supply unit without current sharing bus

A power management device and power unit technology, which is applied to circuit devices, electrical components, emergency power arrangements, etc., can solve the problems of no remote compensation function and no remote compensation provided by the current sharing management chip.

Active Publication Date: 2017-05-17
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

in particular, figure 1 Although the power supply unit in provides the current sharing function, it does not have the remote compensation function; figure 2 Although the power supply unit can achieve current sharing through an external current sharing chip, but currently this type of current sharing management chip does not provide the function of remote compensation

Method used

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  • Redundant hot standby power management device for power supply unit without current sharing bus
  • Redundant hot standby power management device for power supply unit without current sharing bus
  • Redundant hot standby power management device for power supply unit without current sharing bus

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Embodiment Construction

[0025] image 3 Shown is the first embodiment of the redundant hot standby power supply structure solution of the power supply unit without current sharing bus according to the present invention. Figure 4 It shows the second embodiment of the redundant hot standby power supply structure solution of the power supply unit without current sharing bus according to the present invention. image 3 , 4 Only two power supply units are drawn for illustration, and multiple power supply units for redundancy can be included according to specific needs.

[0026] image 3 and Figure 4 The two power supply units PSU1 and PSU2 on the left side of the center do not have a current sharing bus. Such as image 3 , 4 As shown, according to the present invention, a power management device capable of realizing redundant hot backup, remote compensation and current sharing functions of the power supply units PSU1 and PSU2 is added between the power supply units PSU1 and PSU2 on the left and th...

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Abstract

The invention provides a redundant power management device for multiple power supply units without a current-sharing bus, including: a differential amplifier for detecting the voltage at both ends of the load; a plurality of current-sharing regulators for receiving the voltage detected by the differential amplifier. the voltage across the load, and detects the current of the power supply unit, and adjusts the output voltage level of the corresponding power supply unit based on the detected current of the power supply unit and the voltage across the load detected by the differential amplifier; Or a functional block used to implement redundant hot backup of the power supply unit; and a reference voltage used to provide an operating voltage for the above components.

Description

technical field [0001] The present invention generally relates to redundant power management arrangements for power supply units without a current sharing bus. More specifically, it relates to a redundant power management device for multiple power supply units without a current sharing bus, which can simultaneously implement a power management solution of a redundant hot standby structure with current sharing and remote compensation functions. Background technique [0002] In order to improve the reliability of the system, a main feature of the electronic system is to provide a redundant hot standby structure of the power supply scheme. [0003] The power scheme of redundant hot standby structure is not just to put multiple power supply units together in parallel. The current sharing between different power supply units is one of the basic requirements of the redundant hot standby structure power supply scheme. At the same time, in the application situation of using long c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56H02J9/04
Inventor 刘玉烨
Owner SCHNEIDER ELECTRIC IND SAS