Design of switched-linear power supply

Zhou Ning; Zhan Ronglin; Yan Hongbin; Zhang Huajian; Li Jiqiang; Wang Xiaojun; Gao Daqing; Guo Hongliang; Tan Yulian

doi:10.11884/HPLPB202537.240435

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Zhou Ning, Zhan Ronglin, Yan Hongbin, et al. Design of switched-linear power supply[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240435

Citation:

Zhou Ning, Zhan Ronglin, Yan Hongbin, et al. Design of switched-linear power supply[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240435

Zhou Ning, Zhan Ronglin, Yan Hongbin, et al. Design of switched-linear power supply[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240435

Citation:

Zhou Ning, Zhan Ronglin, Yan Hongbin, et al. Design of switched-linear power supply[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240435

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Design of switched-linear power supply

doi: 10.11884/HPLPB202537.240435

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2024-12-20
Accepted Date: 2025-05-08
Rev Recd Date: 2025-05-08

Available Online: 2025-05-23

Abstract

Abstract

With the in-depth study of particle accelerator physics experiments, the requirements higher for beam quality have gradually increased. To obtain a magnetic field environment with extremely high stability and extremely low noise, a high-precision DC excitation power supply combining switching mode and linear mode was analyzed and designed. The front-end switching power supply provides a stable power source, and the back-end linear power supply is connected in series to control the linear amplification of the current for output. Based on the control loop of power supply current and tube voltage drop, the stability of the output current has been further improved through temperature compensation measures for key components. Through the modular design of the back-end linear power supply, the volume of the power supply has been reduced and the convenience of operation and maintenance has been improved. The measured results show that the long-term current stability for 8 h reaches 1.3×10⁻⁶, and the noise is extremely low.
- accelerator power supply,
- extremely high stability,
- linear amplification,
- temperature compensation,
- modularization

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References(17)

References

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