Pulse trigger module for vacuum trigger tube

Abstract

The invention discloses a pulse trigger module for a vacuum trigger tube and is for generating a pulse signal. The pulse trigger module comprises a DC power source unit, a pulse capacitor unit, a MOSFET unit, a magnetic core unit and an FPGA control circuit unit for controlling the MOSFET. The pulse trigger module is advantaged in that no breakdown of a grid electrode of a driven MOSFET switch is guaranteed through the FPGA control circuit, reliable turn-off of the driven MOSFET switch is further guaranteed, a 20-second period is employed by an FPGA control loop, namely 20-second MOSFET closing control, and a signal is generated and acts on a later circuit. A driving circuit has excellent frequency characteristics, the MOSFET switch works under the best voltage and frequency condition, and self loss is relatively small; the MOSFET switch is applied to a high voltage loop, the driving circuit is isolated with the whole control circuit in potential, and safe operation of the control circuit is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electric equipment detection, and specifically relates to a detection equipment-a pulse trigger module suitable for a vacuum trigger tube based on an FPGA-controlled MOSFET switch drive circuit. . Background technique [0002] The vacuum trigger switch (Triggered Vacuum Switch, TVS), also known as the vacuum trigger gap (Triggered Vacuum Gap, TVG) is an important branch of the vacuum switch. As a circuit control device, its structure is composed of two or two sets of electrically insulated main electrodes (usually trigger electrodes) sealed in a vacuum chamber. The gap formed by the main electrodes relies on high vacuum to maintain insulation under normal conditions. When the circuit needs to be connected, trigger energy is added to make the two main electrodes conduct quickly. [0003] As early as the 1960s, GE Company of the United States conducted a lot of research and development work on TVS. In th...

AI Technical Summary

Problems solved by technology

Compared with the power electronic devices being developed, the simple structure and low cost are the biggest features of TVS. For example, in terms of on-off and off functions, the current power electronic devices are connected in series and parallel to reach the power level of TVS, and the cost is lower than that of TVS. TVS orders of magnitude higher

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