摘要
以往设计的基于C8051F设计的激光通信电源,采用C8051F控制芯片实现通信电源的控制过程中,存在电源转换效率低以及输出功率波动大的弊端。因此,对激光通信电源进行改进设计与实现,设计的激光通信电源结构主要由MCU以及CPLD组成,利用更小的芯片面积迅速编码,提高电源电路性能。对激光通信电源主电路进行改进设计,采用输入整流滤波电路对单相交流电实行整流以及滤波,提高电源转换效率,通过隔直电容预防高频变压器直流磁化。确保斩波器输出10 ms长脉冲停止值大于储能电容所释放的最初电压值的90%,使得激光输出功率平稳。采用改进串并联型谐振方式的逆变器,加大变压器电感量降低谐振周期的大幅度波动,使得激光通信电源充电性能平稳。通过改进PID控制器提升激光通信电源的平稳性与动态反映。实验结果说明,所设计的激光通信电源转换效率高、平稳性佳。
The laser communication power based on C8051 F designed by the past has adopted the C8051 F control chip to realize the control of the communication power,which has the disadvantages of low power conversion efficiency and large fluctuation of output power. Therefore,the design and implementation of the laser communication power supply is improved. The structure of the laser communication power supply is mainly composed of MCU and CPLD. It uses smaller chip area to rapidly code and improve the performance of the power circuit. The main circuit of the laser communication power supply is improved. The input rectifier and filter circuit is applied to rectifying and filtering the single-phase alternating current,which improves the efficiency of power conversion,and prevents DC magnetization of high-frequency transformer by blocking capacitance. It is ensured that the stop value of the 10 s long pulse of the output of the chopper is more than 90% of the initial voltage value released by the energy storage capacitor,which makes the output power of the laser stable. The inverter with improved serial and parallel resonant mode increases the inductance of the transformer and reduces the fluctuation of the resonant period,which makes the charging performance of the laser communication power stable. The stability and dynamic response of the laser communication power supply are improved by improving the PID controller. The experimental results show that the conversion efficiency of the designed laser communication power is high and the stability is good.
作者
渠丽岩
QU Liyan(Zhonghuan In formation College, Tianjin University of Technology, Tianjin 300380, China)
出处
《激光杂志》
北大核心
2019年第3期158-162,共5页
Laser Journal
关键词
激光通信电源
大功率器
频率
储能电容
谐振峰值
laser communication power supply
high power laser
frequency
energy storage capacity
laser communication power
resonant peak
