Pulse current injection source circuit capable of continuously adjusting amplitude of double-exponential pulse large-current

Abstract

The invention provides a pulse current injection source circuit capable of continuously adjusting the amplitude of the double-exponential pulse large current, the flexibility of amplitude adjustment of the output pulse large current is improved, and the application range of pulse power is widened. The circuit comprises a high-voltage primary capacitor CM, a primary resistor RM, a switch S, a primary inductor LM, an auxiliary capacitor CP, an auxiliary inductor Lp, a loop load resistor Rload1, an auxiliary adjustment load resistor Rp and an injection cable T; the positive electrode of the high-voltage primary capacitor CM is connected with the positive electrode of the auxiliary capacitor CP through the primary resistor RM, the primary inductor LM and the switch S; and the negative electrode of the high-voltage primary capacitor CM is connected with the negative electrode of the auxiliary capacitor CP through the auxiliary adjustment load resistor Rp to form a charging loop; the negative electrode of the high-voltage primary capacitor CM is grounded; the capacitance value of the auxiliary capacitor CP is smaller than the capacitance value of the high-voltage primary capacitor CM; and the auxiliary capacitor CP and the auxiliary adjusting load resistor Rp are integrally connected into the injection cable T through the auxiliary inductor Lp and the loop load resistor Rload1 in sequence, and then a discharging loop is formed.

Description

Technical field [0001] The invention relates to a pulse current injection source circuit with double exponential pulse high current amplitude continuous adjustment, which is mainly used in a pulse power system to generate high-power pulses with fast leading edges and large currents. Background technique [0002] Pulse power technology is a technology that compresses energy on a time scale to obtain high-power pulses. To obtain fast leading edge pulses and large currents, high-voltage Marx is often used to directly drive high-power loads to achieve such figure 1 . [0003] When the capacitance value and load impedance of the Marx circuit are determined, the pulse width parameter of the output pulse is also determined. The amplitude of the output pulse is mainly achieved by adjusting the working voltage of Marx. However, because Marx switches generally use gas switches at high voltages, their voltage working range is limited. At the same time, the waveform is distorted under long ca...

AI Technical Summary

Problems solved by technology

The amplitude of the output pulse is mainly achieved by adjusting the working voltage of Marx, but under high voltage, because the Marx switch generally adopts a gas switch, the adjustment range of its voltage operation is limited, and at the same time, the waveform is distorted under the condition of long cable injection, and it is difficult to achieve a large dynamic range continuous adjustment of the pulse current under the limited operating range

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