Design of pulse power supply for diode pumped solid state laser

Zhao Qinglin; Cao Ruru; Wang Deyu; Yuan Jing; Li Shu

doi:10.11884/HPLPB201830.180144

Volume 30 Issue 11

Nov. 2018

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Zhao Qinglin, Cao Ruru, Wang Deyu, et al. Design of pulse power supply for diode pumped solid state laser[J]. High Power Laser and Particle Beams, 2018, 30: 115001. doi: 10.11884/HPLPB201830.180144

Citation:

Zhao Qinglin, Cao Ruru, Wang Deyu, et al. Design of pulse power supply for diode pumped solid state laser[J]. High Power Laser and Particle Beams, 2018, 30: 115001. doi: 10.11884/HPLPB201830.180144

Zhao Qinglin, Cao Ruru, Wang Deyu, et al. Design of pulse power supply for diode pumped solid state laser[J]. High Power Laser and Particle Beams, 2018, 30: 115001. doi: 10.11884/HPLPB201830.180144

Citation:

Zhao Qinglin, Cao Ruru, Wang Deyu, et al. Design of pulse power supply for diode pumped solid state laser[J]. High Power Laser and Particle Beams, 2018, 30: 115001. doi: 10.11884/HPLPB201830.180144

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Design of pulse power supply for diode pumped solid state laser

doi: 10.11884/HPLPB201830.180144

Key Laboratory of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China

Received Date: 2018-05-16
Rev Recd Date: 2018-08-06
Publish Date: 2018-11-15

Abstract

Abstract

This article mainly introduces a design circuit and control method for a pulse power supply of diode pumped solid state laser(DPSSL). According to the operating characteristics of the semiconductor laser, a circuit structure in which a front-stage capacitor charging circuit and a post-pulse current generating circuit are combined is used. Because the LCC resonant circuit has the characteristics of soft switching and resistance to load short-circuit and open-circuit, it can also realize the function of constant-current charging of the energy storage capacitor. Therefore, it is suitable for the charging circuit of the energy storage capacitor in the pulse power supply; the latter-stage pulse current generating circuit selects a high-power MOSFET as a master control device, utilizes the drain current controllability of the saturation region of the MOSFET, and generates a pulse current through the gate voltage control. The control part adopts a combination of analog and digital control methods to make the pulse power supply control more flexible, and add a given integrator in the pulse current given step, which can effectively control the pulse current rising process, suppress the current overshoot, improve the control accuracy, and make the pulse drive power supply generate a pulse current similar to a rectangular wave. An experimental platform with a pulse power of 28 kW was set up. The experimental parameters were: pulse current amplitude of 80 A, pulse voltage of 350 V, pulse width of 100 μs, and repetition frequency of 100 Hz.
- DPSSL,
- LCC resonant converter,
- pulse power supply,
- given integrator,
- pulse control

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References(13)

References

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