Gaussian even pulse high-current high-power broadband power wire injection coupling network and construction method thereof

Abstract

The invention relates to a Gaussian even pulse high-current high-power broadband power wire injection coupling network. The Gaussian even pulse high-current high-power broadband power wire injection coupling network comprises a coupling unit and a decoupling unit; the coupling unit consists of an inductor, a capacitor and resistors, wherein the inductor and the capacitor are serially connected to increase series resonance points for expanding the frequency bandwidth for coupling a disturbance signal, and then an LC series resonance circuit is connected with the two resistors in series, and the interference signal is coupled into a power wire; the decoupling unit consists of an inductor and a capacitor which constitute a low pass filter used for filtering a high-voltage noise signal out, and a relatively large common mode rejection impedance is provided by setting a proper series inductance value under the condition that the insertion loss meets the requirements, so that the common mode noise of the power wire is effectively rejected. A construction method of the Gaussian even pulse high-current high-power broadband power line injection coupling network comprises eight major steps. The Gaussian even pulse high-current high-power broadband power line injection coupling network and the construction method thereof are simple and feasible, and the resistance can be adjusted according to the output impedance among different signal generators and the impedance among ground wires, and thus favorable coupling and decoupling performance can be realized.

Description

Technical field [0001] The invention relates to a Gaussian pulse high-current high-power broadband power line injection coupling network and a construction method. The coupling network unit injects high-current, high-power and wide-band Gaussian pulse interference signals into the tested lead when measuring the anti-interference of the power cable, and transfers the current from other leads and equipment connected to the tested equipment The impact is isolated. It belongs to the electromagnetic compatibility field of radio disturbance and immunity measurement. Background technique [0002] With the needs of industrial development, electronic equipment is becoming more and more complex, especially the mixing of analog circuits and digital circuits, and the working frequency of circuits is getting higher and higher, which leads to increasingly serious interference between circuits, and the equipment is located in The electromagnetic environment is more complicated, which poses a ...

AI Technical Summary

Problems solved by technology

However, these methods, due to structural reasons, most coupling networks are limited when used at frequencies up to 100KHz

However, in the increasingly severe and complex electromagnetic environment, we increasingly need to consider the anti-interference ability of the equipment after the high-current, high-power, broadband interference signal is injected into the power line. The current coupling network has not yet been designed.

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