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题名	半导体激光器大功率驱动电源关键技术研究
作者	范辉
学位类别	博士
答辩日期	2007
授予单位	中国科学院上海光学精密机械研究所
导师	陆雨田
关键词	半导体激光器 线性电源 脉宽调制 开关电源 谐振软开关
其他题名	Study of Key Technologies on High Power Supply for Semiconductor Lasers
中文摘要	半导体激光器被广泛应用于光纤通信，光存储及激光测距，激光陀螺等领域，随着大功率半导体激光器的制作工艺进一步完善提高，大功率半导体激光器泵浦的全固态激光器(DPSSL)也得到了蓬勃发展。半导体激光器性能和功率的提高，对驱动电源提出了更高的要求。 半导体激光器为电流驱动器件，其驱动方式分连续式和脉冲式。一般的驱动源有线性电源、脉宽调制（PWM）开关电源、 高效率的谐振软开关电源等三种类型。线性稳压电源主要特点是其功率管工作于特性曲线的线性区，具有结构简单、输出稳定度好、产品化程度高等特点，在中小功率范围内得到了广泛使用。随着功率的提高，线性电源的效率下降很多，其体积和重量也会明显增加。开关电源的功率管工作在开关状态，其变换效率很高，同时，由于工作频率高，滤波电容器、电感器数值较小，所以具有重量轻、体积小等优点。开关电源还具有较高稳定性、可靠性和对电网的适应能力。因此开关电源在很多方面取代了线性电源，尤其是在中高功率领域。谐振开关电源是利用谐振技术使电源的功率管工作在软开关状态，达到降低开关管损耗，提高电源效率的目的。 开关电源技术应用到半导体激光器驱动电源中，在国外已进行了多年的研究，并已取得了很多成果，不仅产品线丰富，而且具有大功率和高效率的技术优势。国内近年来也进行了相关研究。但由于国外功率限制等技术壁垒，进展比较缓慢。随着半导体激光器功率的提高，自主研究开发大功率的驱动电源技术，突破国外公司的技术限制，实现自主装备，具有重要的现实意义。 在本论文中，根据半导体激光器对驱动电源的要求，以直流电源为研究对象，应用电力电子的相关技术，以研究掌握大功率半导体激光器驱动电源的关键技术为目的。重点掌握相移式软开关技术在激光器驱动电源中的应用，判明对其性能指标起到决定性作用的关键元器件并确定选择和使用的原则，研究外国功率模块与控制模块的原理和使用。在此基础上设计实验出大功率样机电源，摆脱大功率二极管激光器驱动电源依靠进口、关键指标受到限制的局面。 本论文对设计方案进行详细的理论分析和研究，给出了具体的参数设计和芯片的使用方法，并通过OrCAD/Pspice进行计算机仿真，对设计进行验证，最后进行1000W样机实验。 本论文的研究工作也是3000W～6000W更高功率驱动电源的前期基础性研究。
英文摘要	Semiconductor lasers are widly used in many fields such as optical fiber communication ,optical data storage, laser distance finding and ring laser gyro.High power diode - pumped solid state laser(DPSSL) has also developed very fast as the improvement of the manufacturing technology for semiconductor lasers. These all demand the better peformance and higher power of power supply for semiconductor lasers. Semiconductor lasers are drived by pulsed or continuous current. The main current sources are linearity power supply, pulse-width-modulation (PWM) switching power supply and resonance soft-switch power supply. The power devices of linearity power supply work in amplifer stage.With the advantage of simply structure, steady output and well production, the linearity power supply are widely used in small and middle power fields.But it goes low efficiency,huge and heavy as the output power increased.With devices work in switching stage, the efficiency of PWM sewitching power supply is very high. Switching power supply is much smaller and lighter because of the lower inductance and capacitance of the filter in high working frequency. Switching power supply also has the advantage of high stability and reliability and also the adaptive ability to the electrical net. The switching power supply has replaced linearity power supply in many fields, especialy in case of high power. Resonance soft-switch power supply has the power devices work in soft-switch stage, its efficiendy is the highest. Study on applying the technology of switching power supply in driving semiconductor laser has been carried out for many years abroad. The productions are abundant and have advantage in high power and efficiency.The domestic research has make some progress recent years.But the progress is slow as the technology bulwark set by developed countris. It is very important to study the high power supply for semiconductor lasers. Based on the need of DC power supply for semiconductor lasers,many research work has been done in this paper in order to understand and master the key technology of high power supply for semiconductor lasers.The main work focuses on the applying of phase-shift soft-switch power supply in driving semiconductor lasers,the principle of choice and usage of key power devices and control IC. A prototype DC power supply is made. The analysis and study on process of designing ,preferences,and the usage of IC are listed in this paper. OrCAD is used to simulate the plan. The 1000W prototype power supply is made. In the same time, the research work in this paper provides some basic knowledge for develop higher power driving sources such as 3000W and 6000W.
语种	中文
内容类型	学位论文
源URL	[http://ir.siom.ac.cn/handle/181231/15478]
专题	上海光学精密机械研究所_学位论文
推荐引用方式 GB/T 7714	范辉. 半导体激光器大功率驱动电源关键技术研究[D]. 中国科学院上海光学精密机械研究所. 2007.

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