Power source automatic calibration device and calibration method thereof

A calibration device and automatic power supply technology, which is applied in the direction of electrical digital data processing, instruments, calculations, etc., can solve the problems of low accuracy and low efficiency, achieve accuracy assurance, increase production efficiency, and overcome complex operations.

Active Publication Date: 2013-11-13
CHINA GREATWALL TECH GRP CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic power calibration device, which aims to solve the technical problems of low accuracy and low efficiency in the existing manual manual calibration of power parameters based on the PMbus protocol

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  • Power source automatic calibration device and calibration method thereof
  • Power source automatic calibration device and calibration method thereof
  • Power source automatic calibration device and calibration method thereof

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Embodiment Construction

[0015] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0016] The power supply automatic calibration device provided by the present invention uses a computer module to read the voltage and current values ​​of two different points of the power supply to be calibrated through the PMbus bus, quickly calculates the calibration parameters through the program, and then transmits the calibration coefficients to the power supply to be calibrated through the PMbus bus The internal MCU (microprocessor) completes the calibration of the voltage, current and power of the power supply to be calibrated, so that it can output a qualified power supply that meets t...

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Abstract

The invention belongs to the technical field of power sources, and particularly relates to a power source automatic calibration device and a calibration method thereof. The power source automatic calibration method comprises the following steps of utilizing a computer module to read voltage values and current values of two different points of a to-be-calibrated power source through a PMbus (power management bus), quickly calculating the calibration parameters through programs, transmitting the calibration parameters to an MCU (micro controller unit) in the to-be-calibrated power source, and enabling the MCU to store and call the calibration parameters to calibrate the voltages and the currents, so as to output the qualified power source meeting the precision requirement. The power source automatic calibration device and the calibration method have the advantages that the defects of complicated operation, low efficiency, low precision and the like of the traditional manual calibration are overcome, the production efficiency is obviously improved, and the precision is also ensured.

Description

Technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a power supply automatic calibration device and a calibration method thereof. Background technique [0002] At present, power supplies with PMbus function have been used in large quantities in the field of server power supplies. The main feature is that the main board reads the operating voltage, current, power, operating temperature of the power supply, the number of fan revolutions, and its working status through the PMbus bus. The specific voltage, current, and power involved have accuracy requirements, and the power supply parameters need to be calibrated in the power supply production process. In actual operation, it is generally necessary to manually measure the PMbus readings at two different voltages, currents or powers manually, and then substitute the calibration formula to calculate the calibration parameters, and the calibration coefficients are solidifi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/267
Inventor 杨龙海孙永刚亓玉青黄昌宾
Owner CHINA GREATWALL TECH GRP CO LTD
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