Line impedance stabilization network for medium-frequency power supply and design method thereof

Abstract

The invention provides a line impedance stabilization network for a medium-frequency power supply, which is used for testing the electromagnetic compatibility and belongs to the technical field of electronic testing and measuring. Meanwhile, the invention further provides a design method for the line impedance stabilization network. The line impedance stabilization network is characterized in that: the line impedance stabilization network comprises a bottom cover, a shell, an output-end wire connecting post, an input-end wire connecting post, a signal port, a grounding terminal and the line impedance stabilization network; the line impedance stabilization network is fixed in a shell body formed by the bottom cover and the shell, the input end and the output end of the line impedance stabilization network are electrically connected with the output-end wire connecting post and the input-end wire connecting post at the two sides of the shell body, and one side of the output-end wire connecting post of the shell body is fixedly connected with the signal port and the grounding terminal. The provided line impedance stabilization network for the medium-frequency power supply can be used in a commercial power grid (50Hz / 60Hz and 115V / 400Hz) for a long term.

Description

technical field [0001] The invention belongs to the technical field of electronic testing and measurement, and relates to a line impedance stabilization network for an intermediate frequency power supply used for electromagnetic compatibility testing and a design method thereof. Background technique [0002] At present, with the rapid development of modern electronic technology, the electromagnetic compatibility performance of electronic equipment is becoming more and more important. As an electromagnetic compatibility laboratory, a line impedance stabilization network must be needed when conducting electromagnetic compatibility tests. An important factor in the accuracy of measuring electromagnetic interference. At present, most electromagnetic compatibility laboratories use linear impedance stabilization networks for 50Hz / 60Hz industrial frequency power supplies. When they work under 115V / 4000Hz intermediate frequency power supplies, the power consumption of 5Ω resistors i...

AI Technical Summary

Problems solved by technology

At present, most electromagnetic compatibility laboratories use linear impedance stabilization networks for 50Hz / 60Hz industrial frequency power supplies. When they work under 115V / 4000Hz intermediate frequency power supplies, the power consumption of 5Ω resistors is much greater than 10W. Damaged, resulting in severe out-of-tolerance impedance characteristics of the stable network, and ultimately wrong EMI test results

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