Device and method for testing residual voltage

Abstract

The invention relates to a device and a method for testing residual voltage. The device comprises a shell (1), wherein an internal power supply module (2), an MCU (Micro Control Unit) module (3), a key input module (4), a variable-frequency power input module (5), a peak voltage detection module (6) and a voltage output and turn-off control module (7) are arranged in the shell (1); the output ends of the internal power supply module (2) and the key input module (4) are connected with the MCU module (3) respectively; the MCU module (3) is connected with the peak voltage detection module (6); the input end of the peak voltage detection module (6) is connected with the variable-frequency power input module (5); the output end of the peak voltage detection module (6) is connected with the voltage output and turn-off control module (7). Compared with the prior art, the device for testing the residual voltage has the advantages that by virtue of verification and comparison tests, the device is combined with a high-voltage high-impedance probe and an oscilloscope for use, so that the problems of repeated testing and low accuracy in the prior art can be quite effectively solved.

Description

[technical field] [0001] The invention relates to the technical field of electronic and electrical equipment testing devices, in particular to a residual voltage testing device and a testing method thereof. [Background technique] [0002] For the medical device standard IEC 60601-1:2005 general standard, Chapter 8.4.3 ME EQUIPMENT intended to be connected to a power source by a plug& Chapter 8.4.4 Internal capacitive circuits (internal capacitor circuit), or the medical device standard IEC Chapter 15 voltage and (or) energy limits in 60601-1:1988, and the relevant clauses of 60950 are tested. [0003] At present, for the plug discharge test, the conventional method is to achieve the test purpose by connecting the oscilloscope to measure the residual voltage after the tester mechanically pulls out the plug. There are two disadvantages in this method: first, the connection time between the plug and the oscilloscope is usually longer than one second; second, it cannot effectiv...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a residual voltage testing device and its testing method. Through verification and comparison tests, the combined use of the testing device with a high-voltage high-impedance probe and an oscilloscope can effectively solve the current problems. The problem of repeated testing and insufficient precision

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