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A method and system for improving the non-monotonicity of VR timing signals

A timing signal and signal technology, applied in the detection of faulty computer hardware, etc., can solve the problems of VR timing signal not monotonic, ENABLE signal not monotonic, etc. Effect

Active Publication Date: 2021-11-02
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and system for improving the non-monotonicity of VR timing signals, aiming at solving the problem of non-monotonous ENABLE signals in the VR power-down timing test in the prior art, reflecting the real working conditions of VR, and improving test efficiency. Simple and efficient

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  • A method and system for improving the non-monotonicity of VR timing signals
  • A method and system for improving the non-monotonicity of VR timing signals
  • A method and system for improving the non-monotonicity of VR timing signals

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Embodiment Construction

[0039] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily lim...

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Abstract

The present invention provides a method and system for improving the non-monotonicity of VR timing signals, including: S1, leading out the four signals VIN, ENABLE, POWERGOOD, and VOUT of the VR chip through welding flying leads and connecting them to an oscilloscope through a single-ended probe; S2. Lead out two cables, one positive and one negative, on the DC Source, and connect the ENABLE signal; S3. After disconnecting the ENABLE signal from the pull-up power supply, power on the board to be tested; S4. Turn on the DC Source, through the control panel Supply power to the ENABLE signal; S5. Set the oscilloscope to trigger along the falling edge of the VOUT signal, power off the board to be tested and disconnect the power supply supplying the ENABLE signal; S6. Observe whether the VR power-off waveform captured by the oscilloscope is abnormal and save it waveform. It can accurately and efficiently solve the problem that the power-down waveform of the ENABLE signal is not monotonous, solves the problem of the non-monotonous ENABLE signal in the VR power-down sequence test in the prior art, reflects the real working situation of VR, improves the test efficiency, and is simple and efficient.

Description

technical field [0001] The invention relates to the technical field of server motherboard design, in particular to a method and system for improving the non-monotonous VR timing signal. Background technique [0002] During the development stage of server motherboards and other boards, it is necessary to measure the VR power-off sequence and analyze whether there is any abnormality in the power-off sequence. The measured VR power-down sequence waveform should be smooth and monotonous before and after falling, and there should be no sudden changes such as abnormal overshoot and drop, and non-monotonic situations are not allowed during the waveform drop. [0003] However, in the actual measurement, it will be found that some ENABLE signals connected to the pull-up power supply through the pull-up resistor will not be monotonous when the power is turned off, which will affect the judgment of the real working condition of VR and reduce the test efficiency. [0004] At present, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/22
Inventor 隋鑫
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD