Modular pulse high-voltage power supply based on single-chip microcomputer

Abstract

The invention discloses a modular pulse high-voltage power supply based on a single-chip microcomputer. The modular pulse high-voltage power supply comprises the single-chip microcomputer, a sink current unit, a pull current unit, a high-voltage direct current unit, two low-voltage side MOSFET gate driving units and two high-voltage side MOSFET gate driving units. The input end of the first low-voltage side MOSFET gate driving unit is connected with the output end of the single-chip microcomputer. The output end of the first low-voltage side MOSFET gate driving unit is sequentially connected with the first high-voltage side MOSFET gate driving unit, the sink current unit and the high-voltage direct current unit. The input end of the second low-voltage side MOSFET gate drive unit is connected with the output end of the single-chip microcomputer. The output end of the second low-voltage side MOSFET gate drive unit is sequentially connected with the second high-voltage side MOSFET gate drive unit and the pull current unit. Pulse signals sent by the single-chip microcomputer are transmitted by all units, controllable high-voltage square pulses are generated at the output end. Meanwhile, the high-voltage square pulse generator has the advantages of being modularized, extensible, low in cost and the like.

Description

technical field [0001] The invention belongs to the technical field of power electronics and relates to a modular pulse high-voltage power supply based on a single-chip microcomputer. Background technique [0002] The development of pulse generators has promoted research and industrial applications in the fields of environment, medicine, particle acceleration, material processing, medium testing, etc. Especially, pulse power supplies are more and more widely used in driving atmospheric pressure-cooled plasmas. Due to its unique The application characteristics have become a research hotspot of many researchers. [0003] Although excellent devices such as traditional or solid-state Marx generators, resonant charging circuits, and rotating spark gap generators have been used for high-voltage pulse generation, each has its own advantages and disadvantages. The main problems are manifested in unstable voltage peak and slope duration, phase jitter, random oscillation on the volta...

AI Technical Summary

Problems solved by technology

The main problems are manifested in unstable voltage peak and slope duration, phase jitter, random oscillation on the voltage waveform, the presence of undershoot or overshoot, load-dependent output characteristics and limited current capability, etc.

On the other hand, although commercial solid-state power supplies provide good high-voltage pulses, such power supplies usually have inherent characteristics, and inevitably have defects such as poor adaptability to different applications, low cost efficiency, and designs that do not support scalability

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