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

A technology of coupling pulse and generator, applied in the field of high-voltage pulse generator, can solve the problems of complex structure of high-voltage pulse generator and unstable output waveform, etc.

Active Publication Date: 2017-12-12
ZHUHAI MEIHUA MEDICAL TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Embodiment Construction

[0017] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0018] An embodiment of the present invention provides a high-voltage coupling pulse generator, such as figure 1 As shown, it includes a switch drive module 1, a first input module 2, a second input module 3, a high-voltage coupling module 6, a first output module 4, a second output module 5, a filter voltage stabilization module 8 and a current limiting filter module 7 . Wherein, the switch drive module 1 includes a drive input terminal 11, a resistor AR1, a resistor R1 and a transistor, the drive input terminal 11, the resistor AR1 and the grid of the transistor are connected in sequence, and the two ends of the resistor R1 are respectively connected to the emitter and the grid of the transistor. pole, the emitter of the triode is grounded, and the drive input terminal 11 is used to input pulse signals to control the on and off...

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PUM

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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, ...

Claims

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Application Information

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IPC IPC(8): H01J49/40H01J49/02
CPCH01J49/022H01J49/40
Inventor 冯彬张贤春
Owner ZHUHAI MEIHUA MEDICAL TECH LTD
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