Injection type bipolar biexponential electromagnetic pulse generator

Abstract

The invention discloses an injection type double-polarity double-index electromagnetic pulse generation device and relates to the technical field of circuits for generating electric pulses. The generation device comprises a direct-current power supply, a triggering circuit, an isolation transformer and a Marx circuit, wherein an output end of the direct-current power supply is connected with a power supply input end of the triggering circuit and the Marx circuit; the output end of the triggering circuit is connected with a signal input end of the Marx circuit through the isolation transformer; and the output end of the Marx circuit is a pulse signal output end of the pulse generation device. The generation device has selective output pulse polarities, small size and high triggering stability.

Description

technical field [0001] The invention relates to the technical field of circuits for generating electric pulses, in particular to an injection-type bipolar double-exponential electromagnetic pulse generating device. Background technique [0002] Injection method and irradiation method are often used in electromagnetic compatibility effect experiments to simulate two interference modes of conduction and radiation, and to evaluate the electromagnetic immunity / sensitivity of electronic equipment or devices. The injection method is to directly inject the interference source (such as double-exponential fast-edge electromagnetic pulse) into the device, circuit or equipment port under test. The advantage of the injection method is that the test conditions and steps are simple, and the relatively low power source can make the test The equipment obtains a certain voltage value and energy value; moreover, compared with the irradiation method, the injection method also has the advantage...

AI Technical Summary

Problems solved by technology

[0003] The Marx circuit is a typical and commonly used fast-edge narrow pulse generating device. It uses the energy storage system to charge slowly to store energy, and then quickly releases the energy to the load through a high-speed switch, forming a very steep front edge and a narrow pulse width. For narrow pulses, in order to realize the output of positive and negative pulses, load resistors are set at the beginning and end of the circuit respectively. The entire pulse generating device includes a DC power supply, a trigger circuit and a Marx circuit. For a bipolar pulse circuit, the ground of the trigger circuit It cannot directly share the ground with the Marx circuit. It is found through experiments that when the trigger ground and the power ground are disconnected, due to the inconsistency of the ground potential, the Marx circuit is easy to self-trigger. How to solve the problem of the pulse originating from the trigger has not been reported.

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