Miniature multi-path floating negative high-voltage power supply

A negative high-voltage power supply, floating technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve problems such as poor element resolution, avoid high-voltage electric shock, small size, and be conducive to space applications or portable applications. Effect

Active Publication Date: 2020-04-17
NAT SPACE SCI CENT CAS
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Problems solved by technology

[0006] The object of the present invention is that, in order to solve the above-mentioned defects in the existing high-voltage power supply, the present invention proposes a miniature multi-channel floating negative high-voltage power supply, which is specifically applicable to a miniature multi-channel floating negative high-voltage power supply system with space resource constraints, and solves the problem of The traditional APXS technology has poor resolution ability for elements above the middle atomic number

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  • Miniature multi-path floating negative high-voltage power supply
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  • Miniature multi-path floating negative high-voltage power supply

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Embodiment Construction

[0049] The present invention will be further described now in conjunction with accompanying drawing.

[0050] The X-ray source used in the new planetary rock soil composition analyzer includes two parts: X-ray tube and high-voltage power supply. Among them, electrons generated by the cathode of the X-ray tube are accelerated under the action of a strong electric field formed between the cathode and the anode, and the high-speed moving electrons finally generate X-rays through bremsstrahlung on the anode target.

[0051] First of all, in order to avoid the potential safety hazard of the anode being connected to the positive high voltage, the cathode is connected to the negative high voltage and the anode is grounded, so a negative high voltage power supply needs to be designed.

[0052] Secondly, the cathode has many ways to generate electrons, such as thermal electron emission and field electron emission. Different cathode electron emission principles require different power ...

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Abstract

The invention belongs to the technical field of planetary rock composition analyzers, electronic guns and high-voltage power supplies, and particularly relates to a miniature multi-path floating negative high-voltage power supply which comprises a low-voltage control circuit (1000) and a high-voltage module (2000), wherein the low-voltage control circuit (1000) and the high-voltage module (2000) are respectively and correspondingly installed on respective PCBs, and the low-voltage control circuit (1000) and the high-voltage module (2000) are electrically connected through a soft signal line; and the high-voltage module (2000) is encapsulated in high-voltage insulating glue and then is mounted on the PCB.

Description

technical field [0001] The invention belongs to the technical field of planetary rock composition analyzers, electron guns and high-voltage power supplies, and in particular relates to a miniature multi-channel floating negative high-voltage power supply. Background technique [0002] With the continuous advancement of science and technology, deep space exploration has become possible. Among them, planetary rocks or soil may contain important clues of life imprints, which are important information for studying the origin or history of planets. Therefore, the analysis of the chemical composition of planetary rocks or soils is very important. [0003] At present, planetary rock or soil composition analyzers include: alpha, proton, X-ray spectrometer (Alpha, Proton, X-ray Spectrometer, APXS) and new rock composition analyzer based on X-ray tube (PlanetaryInstrument for X-ray Lithochemistry, PIXL) two kinds. Among them, for APXS, APXS uses alpha radioactive sources to analyze ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 牟欢李保权曹阳吕嘉玮李海涛
Owner NAT SPACE SCI CENT CAS
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