High-voltage coupling pulse generator and time-of-flight mass spectrometer

Abstract

The invention discloses a high voltage coupling pulse generator and a time-of-flight mass spectrometer, wherein the pulse generator comprises a switching on / off driving module, a first input module, a second input module, a high-voltage coupling module, a first output module, a second output module, a wave filtering voltage stabilization module and a current-limiting wave filtering module; the switching on / off driving module comprises a driving input end, a resistor AR1, a resistor R1 and a triode; the first input module comprises a first input terminal, a plurality of first current limiting resistors, and a charging capacitor; the high-voltage coupling module comprises a plurality of high-voltage capacitors; one end of the high-voltage coupling module is a first end and the other end of the high-voltage coupling module is a second end; the first end is connected with the collector of the triode; the second input module and the first output module are both connected with the second end; the current-limiting wave filtering module is connected with the second end; the second output module comprises a second output terminal and fourth current limiting resistors; one end of the wave filtering voltage stabilization module is connected between adjacent fourth current limiting resistors, and the other end of the wave filtering voltage stabilization module is grounded. A circuit structure in the invention is complex and output waveforms are stable.

Description

technical field [0001] The invention relates to the field of high-voltage pulse generators, in particular to a high-voltage coupling pulse generator and a time-of-flight mass spectrometer. Background technique [0002] Time-of-flight mass spectrometer is a very important mass spectrometer. In the mass analyzer, ions with different mass-to-charge ratios fly in the flight tube at different times to detect ions. It has the characteristics of wide detection range, fast analysis speed, and simple structure. . In the time-of-flight mass spectrometer ion source (such as MALDI), a high-voltage pulse generator is often used to repel or extract the ionized ions, and then enter the time-of-flight mass analyzer for detection, so the high-voltage pulse generator is used in the time-of-flight mass spectrometer. has an important role. [0003] The important indicators of the high-voltage pulse generator are the amplitude of the high voltage, the rising or falling time of the pulse edge, ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a high-voltage coupled pulse generator and a time-of-flight mass spectrometer, which solves the problems of complex structure and unstable output waveform of the existing high-voltage pulse generator

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