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Your search keyword '"Wang, Qingfeng"' showing total 27 results
Start Over Author "Wang, Qingfeng" Journal high power laser and particle beams
27 results on '"Wang, Qingfeng"'

1. High frequency AC-link capacitor charging power supply

Author

Li Xiangqiang, Liu Qingxiang, Zhang Zhengquan, Wang Qingfeng, Wu Zhipeng, and Yang He

Subjects
Trickle charging, Reservoir capacitor, Materials science, Switched-mode power supply, business.industry, Electrical engineering, Capacitive power supply, Decoupling capacitor, Atomic and Molecular Physics, and Optics, Power (physics), law.invention, Capacitor, law, Electrical and Electronic Engineering, business
Published
2012

2. Magnetic properties of nanocrystalline core at constant magnetization rate

Author

王庆峰 Wang Qingfeng, 刘庆想 Liu Qingxiang, 高国强 Gao Guoqiang, 李相强 Li Xiangqiang, 胡克松 Hu Kesong, and 张政权 Zhang Zhengquan

Subjects
Core (optical fiber), Magnetization, Magnetic anisotropy, Materials science, Condensed matter physics, Remanence, Electrical and Electronic Engineering, Constant (mathematics), Atomic and Molecular Physics, and Optics, Nanocrystalline material
Published
2012

3. Double-cell experimental study of linear transformer drivers

Author

Xu Yuancan, Wang Qingfeng, Liu Qingxiang, Hu Kesong, Zhang Zhengquan, and Li Xiangqiang

Subjects
Pulse forming network, Materials science, business.industry, Electrical engineering, Pulsed power, Atomic and Molecular Physics, and Optics, law.invention, law, Waveform, Electrical and Electronic Engineering, business, Transformer, Electrical impedance, Linear transformer driver, Pulse-width modulation, Voltage
Abstract

The technical path combining pulse forming with inductive adding is one of the important candidates to realize pulsed power miniaturization. In this paper, the cell structure of the linear transformer driver(LTD), which is based on pulse forming network(PFN), with impedance 2.5 and pulse width 200ns is introduced. The outputs of two such LTDs are inductively added to a load through the cathode pole, which forms a double-cell module based on the LTDS. The experiment results show that the high-voltage pulse waveform from the double-cell module at charging voltage of 40 kV and repetition frequency of 20 Hz/40 Hz accords with that from PFN discharged directly, and its jitter is about 2 ns. The coherence of the output pulse waveforms is quite good at repetition mode.

Published
2012

4. Simulation and experimental study on inductance of low impedance pulse forming network

Author

胡克松 Hu Kesong, 刘庆想 Liu Qingxiang, 张政权 Zhang Zhengquan, 徐远灿 Xu Yuancan, and 王庆峰 Wang Qingfeng

Subjects
Inductance, Pulse forming network, Materials science, Acoustics, Equivalent series inductance, Output impedance, Input impedance, Electrical and Electronic Engineering, Low impedance, Atomic and Molecular Physics, and Optics, Kinetic inductance
Published
2011

5. Relation between voltage-second character and interlayer insulation of magnetic core for linear transformer driver

Author

刘庆想 Liu Qingxiang, 王庆峰 Wang Qingfeng, 胡克松 Hu Kesong, 高国强 Gao Guoqiang, and 张政权 Zhang Zhengquan

Subjects
Materials science, Character (mathematics), Relation (database), Magnetic core, business.industry, Electrical engineering, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Linear transformer driver, Voltage
Published
2011

6. Transfer efficiency of linear transformer driver affected by load impedance

Author

胡克松 Hu Kesong, 王庆峰 Wang Qingfeng, 刘庆想 Liu Qingxiang, 张政权 Zhang Zhengquan, and 徐远灿 Xu Yuancan

Subjects
Materials science, Acoustics, Linear variable differential transformer, Impedance matching, Damping factor, Energy efficient transformer, Impedance bridging, Quarter-wave impedance transformer, Input impedance, Electrical and Electronic Engineering, Transformer effect, Atomic and Molecular Physics, and Optics
Published
2010

7. Synchronization characteristics of cold cathode thyratron

Author

Gao Guoqiang, Liu Qingxiang, Wang Qingfeng, Xu Yuancan, Hu Kesong, and Zhang Zhengquan

Subjects
Materials science, law, business.industry, Synchronization (computer science), Electrical engineering, Cold cathode, Thyratron, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, law.invention
Published
2010

8. Analysis on energy transfer efficiency of pulse forming network

Author

Wang Qingfeng, Gao Guoqiang, Zhang Zhengquan, Hu Kesong, Xu Yuancan, and Liu Qingxiang

Subjects
Pulse forming network, Materials science, business.industry, Energy transfer, Optoelectronics, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2010

9. Effect of switch jitter on wave addition of linear transformer driver

Author

Liu Qingxiang, Xu Yuancan, Wang Qingfeng, Zhang Zhengquan, and Hu Kesong

Subjects
Physics, business.industry, Work (physics), Linear variable differential transformer, Electrical engineering, Hardware_PERFORMANCEANDRELIABILITY, Atomic and Molecular Physics, and Optics, Normal distribution, Rise time, Hardware_INTEGRATEDCIRCUITS, Waveform, Electrical and Electronic Engineering, business, Linear transformer driver, Hardware_LOGICDESIGN, Jitter
Abstract

For switch delay of normal distribution, the effects of switch jitter and single waveform’s rise time on the rise time of resultant waveforms are discussed when multiple switches work synchronously. The simulation result shows that the effects of switch jitter on the rise time of resultant waveforms are related to the single waveform’s rise time. The less the rise time of single waveform is, the stronger the effects of switch jitter on the rise time of resultant waveforms. For four switches with the jitter of 5 ns, the rise time of resultant waveforms will decrease from 6.7 ns to 1.7 ns when the rise time of single waveform increases from 10 ns to 80 ns. When the rise time of single waveform is large, there is no use going for small switch jitter.

Published
2010

10. Energy transfer efficiency for magnetic core of linear transformer driver

Author

王庆峰 Wang Qingfeng, 刘庆想 Liu Qingxiang, 胡克松 Hu Kesong, and 高国强 Gao Guoqiang

Subjects
Materials science, Magnetic core, business.industry, Nuclear engineering, Energy transfer, Electrical engineering, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Linear transformer driver
Published
2010

16. Matrix topology pulse transformer

Author

张政权 Zhang Zhengquan, 李相强 Li Xiangqiang, 刘庆想 Liu Qingxiang, and 王庆峰 Wang Qingfeng

Subjects
Pulse transformer, Matrix (mathematics), Materials science, Flyback transformer, Linear variable differential transformer, Topology (electrical circuits), Electrical and Electronic Engineering, Topology, Delta-wye transformer, Atomic and Molecular Physics, and Optics
Published
2014

18. High frequency high turn ratio pulse transformer coupled hard tube solid-state modulator

Author

李相强 Li Xiangqiang, 王庆峰 Wang Qingfeng, 张政权 Zhang Zhengquan, and 刘庆想 Liu Qingxiang

Subjects
Pulse transformer, Materials science, business.industry, Turn (geometry), Solid-state, Electrical engineering, Optoelectronics, Tube (fluid conveyance), Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2014

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