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A method for identifying AC voltage phases, a power supply module and a power supply system

A technology of power module and AC voltage, applied in the phase angle between voltage and current, system integration technology, information technology support system, etc., can solve the problems of occupying system installation space and increasing system cost, and achieve system cost saving, The effect of saving installation space and simplifying development

Inactive Publication Date: 2011-12-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the existing technical solutions, an independent AC voltage detection board is required, which increases the system cost and occupies the installation space of the system

Method used

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  • A method for identifying AC voltage phases, a power supply module and a power supply system
  • A method for identifying AC voltage phases, a power supply module and a power supply system
  • A method for identifying AC voltage phases, a power supply module and a power supply system

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Embodiments of the present invention provide an AC voltage phase identification method, a power module and a power system, which can realize the phase identification of the AC voltage of the power system without adding an independent AC voltage detection board, which can save both system cost and system cost. installation space.

[0029] refer to image 3 , is a structural diagram of a power supply system according to an embodiment of the present invention. Such as image 3 As shown, the power supply system includes: several PSU modules and a PMU module.

[0030] The input ends of each PSU module are respectively connected to one phase of the AC input voltage, and the output ends of each PSU module are connected to the P...

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PUM

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Abstract

A method for recognizing an AC voltage phase comprises the steps as follows: a PSU (Power Supply Unit) detects stitch state of a phase detection signal stitch on a connector thereof, wherein an input / output connector of the PSU is provided with the phase detection signal stitch; the PSU searches a state mapping table according to the stitch state, and recognizes the phase that the PSU is in; and the PSU forwards the phase that the PSU is in to a PMU (Power Monitoring Unit). An embodiment of the present invention also provides the PSU and a power supply system. By adopting the embodiment of the present invention, the phase recognization for the AC voltage of the power supply system can be realized without adding an independent AC voltage detecting plate, thus not only system cost can be saved, but also installing space of the system can be saved.

Description

technical field [0001] The invention relates to the technical field of voltage detection, in particular to an AC voltage phase identification method, a power module and a power system. Background technique [0002] For an AC / DC (AC to DC, AC-to-DC conversion) power supply system, it is generally necessary to implement the AC voltage detection and phase loss detection functions of the power module. The common practice in the prior art is to add an AC voltage detection board on the input side of the system, convert the AC voltage signal into a DC low-voltage signal, and send it directly to the I / O port of the PMU (Power Monitoring Unit, monitoring module) for detection. . [0003] refer to figure 1 , is a block diagram of a power supply system in the prior art. Such as figure 1 As shown, the power supply system may generally include several PSUs (Power Supply Units, power supply modules), figure 1 7 PSU modules are taken as an example for illustration. [0004] The power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R25/00H02M7/02
CPCY04S10/265G01R29/18G01R25/00Y02E60/728Y02E40/70Y02E60/00Y04S10/00Y04S10/22
Inventor 林伟鸿
Owner HUAWEI TECH CO LTD