Research on two-channel high-voltage pulse generator with reverse bias voltage

Li Zi; Zhang Di; Jiang Song; Wang Yonggang; Rao Junfeng

doi:10.11884/HPLPB202436.240003

Volume 36 Issue 3

Feb. 2024

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Li Zi, Zhang Di, Jiang Song, et al. Research on two-channel high-voltage pulse generator with reverse bias voltage[J]. High Power Laser and Particle Beams, 2024, 36: 035002. doi: 10.11884/HPLPB202436.240003

Citation:

Li Zi, Zhang Di, Jiang Song, et al. Research on two-channel high-voltage pulse generator with reverse bias voltage[J]. High Power Laser and Particle Beams, 2024, 36: 035002. doi: 10.11884/HPLPB202436.240003

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Research on two-channel high-voltage pulse generator with reverse bias voltage

doi: 10.11884/HPLPB202436.240003

1.
School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
2.
Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China

Received Date: 2024-01-03
Accepted Date: 2024-02-01
Rev Recd Date: 2024-02-01

Available Online: 2024-02-22

Publish Date: 2024-02-29

Abstract

Abstract

The influence of electric field penetration on mass spectrometer can be improved by adjusting the reverse bias voltage to improve the resolution of mass spectrometer. To meet the different output waveform requirements of mass spectrometers, this paper proposes a pulse generator that can simultaneously output two pulses of the same voltage amplitude and with opposite polarities, and a negative DC bias voltage is coupled to the high-voltage positive pulse. Only one charging power source is needed to generate both positive and negative pulsed electric fields. This paper analyzes the synchronous driving effect of the series switch, and then solves the problem of uneven charging voltage of the series capacitors by adding the compensation windings and parallel resistors. The difference of charging voltage between four capacitors is within 0.1%. A 4-stage prototype was constructed. This pulse generator can generate a high-voltage positive pulse with amplitude from 0 to 1.5 kV and adjustable pulse width from 2 to 10 µs and coupled with a negative bias voltage with amplitude from 0 to −200 V, and a high-voltage negative pulse with amplitude from 0 to −1.5 kV and adjustable pulse width from 2 to 10 µs. All the rising edges are shorter than 30 ns. The pulse generator can achieve adjustable output voltage, pulse widths and frequencies.
- high-voltage pulsed power supply,
- pulse generator,
- pulsedelectric field,
- rectangular pulse,
- resonant charging

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References(18)

References

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