Pulse power switch device

Abstract

The invention discloses a pulse power switch device. The pulse power switch device comprises a bracket, and a rectification tube unit, a thyristor unit and a trigger protection unit which are mounted on the bracket, wherein the bracket comprises an upper pressing plate, a lower pressing plate and a plurality of bolts connected between the upper pressing plate and the lower pressing plate; two mounting components are arranged on the lower pressing plate; more than two thyristors are sequentially stacked on one of the mounting components from bottom to top to form the thyristor unit; and a rectification tube is arranged on the other mounting component to form the rectification tube unit. The pulse power switch device has the advantages of simple and compact pressing structure, convenience in assembly and maintenance, high through-flow capability, high adjustability, wide application range and the like.

Description

technical field [0001] The invention mainly relates to the field of high-power semiconductor device pulse switch equipment, in particular to a pulse power switch device. Background technique [0002] At present, pulse power technology is widely used in national defense research, high-tech research, and civil industry, such as nuclear physics technology, high-power laser weapons, high-power microwave, and metal ion implantation technology. In the pulse power component, the pulse switch determines the turn-on and turn-off of the circuit, and plays the role of connecting the energy storage device and the load. The semiconductor device switch has the characteristics of high voltage resistance, high current, no contact, and fast speed, and is currently being widely studied. [0003] In the pulse power technology, the existing traditional switching elements include spark gap (Spark gap), ignition tube (Ignitron), thyratron (Thyratron), vacuum tube and explosive switch. However, ...

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Problems solved by technology

[0004] 1) The spark gap is used in many pulse power fields, but its life is short and limited to low repetition frequency occasions;

[0005] 2) The ignition tube has the characteristics of high voltage resistance, high power, and fast current rise. Since it is press-fitted with multiple components, its life is as short as the spark gap;

[0006] 3) Synchronous control of thyratrons is difficult, expensive and easy to break down;

[0007] 4) Moreover, some traditional pulse switches are generally used in capacitor energy storage and discharge applications with low energy

[0008] And in pulse application conditions, the current will generate a large current in an instant, and will generate a lot of heat around the chip. The general pulse switch will be damaged due to insufficient power. There is an urgent need for a pulse switch that can withstand high voltage and high current.

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