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Apparatus for estimating remaining life of power converter and its method

A technology for power converters and longevity, applied in the direction of conversion equipment, instruments, calculations, etc. without intermediate conversion to AC, can solve the problems of damage to power supply, proper operation, power loss, and too expensive sensors

Active Publication Date: 2014-05-14
THE UNIVERSITY OF HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, capacitor current sensing through sensors is practically undesirable as this impairs proper operation of the power supply and creates power losses
Also, sensors can be too expensive for mass-produced products, and Warizaya's surveillance system is limited to large systems where cost is not a major concern

Method used

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  • Apparatus for estimating remaining life of power converter and its method
  • Apparatus for estimating remaining life of power converter and its method
  • Apparatus for estimating remaining life of power converter and its method

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Embodiment Construction

[0040] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of claimed subject matter. It will be understood, however, by those skilled in the art that claimed subject matter may be practiced without these specific details. In other instances, well-known methods, procedures, components and / or circuits have not been described in detail.

[0041]Embodiments described herein may include real-time remaining life estimation apparatus for power converters. Power converter life may be determined, at least in part, based on electrolytic capacitors. Electrolytic capacitor life can be affected by its ripple current. It may not be feasible to use a sensor to measure the capacitor current. Embodiments disclosed herein may include capacitor current estimation apparatus and techniques that may employ indirect capacitor current measurements. Embodiments may include current mode controlled power converters, wherein sem...

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Abstract

Subject matter disclosed herein may relate to monitoring and / or estimating remaining life for a power converter.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from US Provisional Application (Serial No. 61 / 116507) filed November 20, 2008, entitled "Power Converter Remaining Life Estimation," which application is hereby incorporated by reference in its entirety. technical field [0003] The subject matter disclosed herein may relate to monitoring and / or estimating the remaining life of a power converter. Background technique [0004] Power converters are important components of an extremely wide variety of electronic devices, and reliable operation of such power converters may be particularly important in a wide variety of electronic devices, such as medical, communication, and / or computing devices. In some cases, such electronic devices may be utilized in critical applications where it may be advantageous to avoid sudden failure of a power converter and / or to be able to schedule maintenance or replacement of the power converter prior to failu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00H02M3/10
CPCG06F1/28G06F11/3058
Inventor 庞敏熙彭汉文
Owner THE UNIVERSITY OF HONG KONG
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