Automatic calibration device for power module and calibration method

Abstract

The invention discloses an automatic calibration device for a power module and a calibration method. The automatic calibration device comprises the power module, a control module, a programmable universal meter, a programmable power quality analyzer, a programmable thermometer, a programmable load and a shunt, wherein the control module is connected with the power module. An output end of the power module is connected with an input end of the programmable load and an input end of the programmable universal meter through the shunt respectively. The output end of the power module is further connected with the input end of the programmable universal meter, an input end of the programmable power quality analyzer and an input end of the programmable thermometer. An output end of the programmable load, an output end of the programmable universal meter, an output end of the programmable power quality analyzer and an output end of the programmable thermometer are connected with the control module. Compared with traditional manual calibration, the automatic calibration device for the power module reduces manual operation errors and greatly improves efficiency and accuracy.

Description

technical field [0001] The invention relates to an automatic calibration device and a calibration method for a power supply module, belonging to the technical field of power supplies. Background technique [0002] At present, in the field of power supply modules, power supplies with communication methods such as CANbus or serial ports are generally used. These power supplies realize module control and module status release through communication. The status information of the module usually includes information such as input voltage, output voltage, output current, temperature, etc. These information have precision requirements in practical applications, so it is necessary to calibrate these published information in the industrial production process. [0003] The current common calibration methods are: direct compensation coefficient method, start the power module, read the information such as voltage and current fed back by the module communication, use measuring instrumen...

AI Technical Summary

Problems solved by technology

The accuracy of this method has been improved, but most of the calibrations are done manually, and the sampling values ​​are measured manually. The process is complicated, the accuracy is poor, and the efficiency is low, which is not conducive to large-scale production.

With the development of power module technology, more and more information is released by the power module, and the parameters that need to be calibrated also increase, and various errors are more prone to occur in manual methods

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