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.
CN103389931AActive Publication Date: 2013-11-13CHINA GREATWALL TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA GREATWALL TECH GRP CO LTD
Publication Date
2013-11-13

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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.
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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...

Claims

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