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Multichannel voltage collecting device and method

A voltage acquisition, multi-channel technology, applied in the electrical field, can solve the problem of low voltage acquisition accuracy, and achieve the effects of good linearity, high voltage sampling accuracy, and fast speed response

Inactive Publication Date: 2010-07-14
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a multi-channel voltage acquisition device and method to solve the problem of low accuracy of voltage acquisition in the prior art

Method used

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  • Multichannel voltage collecting device and method

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Embodiment Construction

[0036] In order to solve the problem of low voltage acquisition accuracy in the prior art, the present invention provides a multi-channel voltage acquisition device and method. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] Such as figure 1 As shown, Embodiment 1 of the present invention relates to a multi-channel voltage acquisition device, including:

[0038] The filter discharge unit 101 is composed of electronic components such as resistors and capacitors, and is mainly used to filter the analog voltage output by the voltage module to be detected before entering the voltage acquisition channel, and return the voltage to zero before channel switching. During signal transmission, the filter discharge unit 101 absorbs signal clutter genera...

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Abstract

The invention discloses a multichannel voltage collecting device and method. The device of the invention comprises filtering discharge units, multichannel switching units, logic control units and processor units, wherein the number of the filtering discharge units is the same as that of voltage modules to be detected, and the filtering discharge units are respectively connected with the voltage modules to be detected; the multichannel switching units are connected with the filtering discharge units; the logic control units are respectively connected with the multichannel switching units and is used for generating channel switching control signals for the multichannel switching units to carry out voltage collecting channel switching control; and the processor units are respectively connected with the multichannel switching units and the logic control units and is used for processing the collected voltage and controlling the logic control units to generate the channel switching control signals. In the invention, by filtering the output voltage of a power supply module to be detected, when in in transmission, space common mode interference and line transmission interference born by the output voltage of the power supply module to be detected are eliminated; and by switching on and switching off an optical coupler relay control channel, the invention has the characteristics of fast velocity response, short stabilization time, good linearity and long service life.

Description

technical field [0001] The invention relates to the field of electricity, in particular to a multi-channel voltage acquisition device and method for module power supply aging monitoring. Background technique [0002] At present, various types of DC / DC (direct current / direct current) power modules are usually used in various board designs of electronic systems. The quality of these power modules directly affects the normal operation of the board and even the entire system. Therefore, The delivery of these power modules requires a strict aging screening process, and requires real-time monitoring of the working status and output voltage of each power module during the aging process. [0003] In the above background, a multi-channel power acquisition device is needed, which can scan and sample the voltage of hundreds of power modules within a few seconds, and compare the results of each sampling with the normal value to judge whether it is in the aging process An exception occu...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R15/08G01R31/40
Inventor 黄晓峰杜晓岗
Owner ZTE CORP
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