Design of the power supply system integrated with LD pump module
Design of the power supply system integrated with LD pump module
复制标题
LD泵浦模块集成供电系统设计
DOI：
10.1117/12.2532964
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
H. Geng
中科院分区：
文献类型：
--
作者：
X. Huang;Jinfeng Jiang;Yizhuo Zhang;Yan Jin;Dong Li;Wenhua Hu;H. Geng
固体激光器在许多领域的应用得到了极大的扩展。要求激光系统高度集成。本文提出了一种激光二极管泵浦固体激光器的集成化设计方案。通过将激光电源与LD泵浦模块集成，减小了器件的体积。以单片机和低温漂驱动电路为核心。设计了简化的有效前级DC-DC电源和准谐振全桥温控电路。设计中引入了放电控制回路的深度负反馈。该系统采用热电偶，采用预测PID控制，控制精度为±0.5℃。通过负载试验，测试了电流波形的涟漪和上升时间，验证了电源工作在20 Hz时的稳定性。实验结果表明，该系统具有良好的负载能力和稳定性。与以往的供电系统相比，该系统体积小，结构紧凑。电源效率提高了10%以上，器件尺寸大大减小。
The application of the solid state lasers has been greatly expanded in many domains. The laser system is required to be highly integrated. In this paper, an integrated design scheme of laser diode pumped solid state laser is proposed. The size of the device is reduced by integrating the laser power source with LD pump module. The MCU and low-temperature drift drive circuit is utilized as the hard core. The simplified effective pre-stage DC-DC power source and a quasiresonant full-bridge temperature control circuit are designed. The deep negative feedback for the discharge control loop is concluded in the design. The TEC is used and the control accuracy is ±0.5℃ by the using of predictive PID. The ripple and rise time of the current waveform is tested and the stability of the power supply operated at 20Hz is verified by the load test. The experiment results reveal that this system has good load capacity and stability. Compared with the previous power supply system, this system is small and compact. The power supply efficiency is improved by more than 10% and the size of device is greatly reduced.