All-solid-state square-wave pulse generator

Abstract

The invention relates to a square-wave pulse generator, and in particular relates to an all-solid-state square-wave pulse generator based on a fractional ratio saturable pulse transformer and a Marx generator, and belongs to the field of pulse power. The pulse generator is composed of a charging module, a pulse boosting module and a load module. According to the pulse generator provided by the invention, the primary working voltage and an auxiliary side saturable inductor of the pulse transformer can be reduced, and compact integration of the pulse transformer and the magnetic switch can be achieved; the magnetic switch is used for replacing an air switch in the traditional Marx generator, so that the service life of the whole system and the repeat frequency are greatly enhanced; a high voltage silicon rectifier stack is used for replacing an isolated inductor in the Marx generator, and the pre-pulse problem is effectively eliminated; meanwhile quasi-square-wave pulse with relatively high quality and good flattening degree can be output via an anti-resonant network, the system is all solidified and miniaturized, and is small in volume, light in weight, convenient in transport and practicability, avoids a multi-switch serial structure of the high voltage pulse generator, and can improve the service life.

Description

technical field [0001] The invention relates to a square wave pulse generator, in particular to an all-solid-state square wave pulse generator based on a fractional-turn ratio saturable pulse transformer (FRSPT) and a Marx generator, belonging to the field of pulse power . Background technique [0002] Pulse power technology is an electrophysical technology that quickly compresses, converts or directly releases the "slow" stored electric or magnetic field energy with high density to the load. Driven by current and future development needs, pulse power technology Development directions include high power, high efficiency, high repetition rate, solid state, integrated compactness, etc. Among them, the switching technology with high power, high repetition frequency and long life is the key to realize high repetition frequency and long life of pulse power devices. According to the energy storage form of the pulse power device, the switch can be divided into two categories: clo...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the difficulty of taking into account the high boost ratio and low secondary saturation inductance of the existing SPT, and the FRSPT with the new winding form cannot be applied to the high voltage field of tens of kV to hundreds of kilovolts alone. , and the pulse generator based on FRSPT cannot completely eliminate the pre-pulse effect on the load. A technical solution based on FRSPT cascaded Marx generators is proposed as a control switch for the series discharge circuit of the Marx generators, and a high-voltage silicon stack is used for isolation.

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