基于DDS技术的两相陀螺仪驱动电源设计  

Design of two-phase gyroscope driving power supply based on DDS technology

作　　者：王志伟[1] 陆锦军[1] 李德军 

机构地区：[1]江苏信息职业技术学院机电工程学院,江苏无锡214153 [2]无锡智航控制技术有限公司,江苏无锡214028

出　　处：《现代电子技术》2016年第20期154-158,162,共6页Modern Electronics Technique

基　　金：国家自然科学基金(60974016);江苏省科技厅前瞻性产学研研究专项基金资助项目(BY2013016);江苏省自然科学基金(BK2008188)

摘　　要：导航和定位是军用及民用航空器中的陀螺仪的最主要的功能,其运行情况直接影响到飞行器的安全,而为陀螺仪提供电能的多相电源的性能也决定了陀螺仪能否正常稳定工作。基于C8051F020及DDS芯片AD9952等搭建两相陀螺仪电源的1 200 Hz波形发生电路,利用大功率MOS管电源:集成运放MP108为电路提供足够大的输出功率,通过软硬件滤波实现波形的平滑输出,使陀螺仪工作更顺畅精确。通过测试,该电源输出电压和频率值精度高、稳定性好、抗高频干扰能力强,实现了设计要求。The navigation and position are the most important functions of the gyroscope used in military and civil aircrafts. The running condition of the gyroscope can affect the aircrafts＇ safety directly, and the multiphase power supply providing the electrical energy for the gyroscope determines whether the gyroscope can work stably. The C8051F020 and DDS chip AD9952 based 1 200 Hz waveform generating circuit of two-phase gyroscope power supply is described, in which the high-power MOS- FET power supply is used to provide the large enough output power for the integrated operational amplifier MP108 circuit. The smooth waveform output is realized with the hardware and software fihering, which can make the gyroscope work smoothly and accurately. The test results show that the output voltage and frequency of the power supply have high accuracy, good stability and great ability to resist the high-frequency interference, and can satisfy the design requirements.

关 键 词：航空电源 陀螺仪 DDS 平均滤波算法 惯性导航系统 

分 类 号：TN86-34[电子电信—信息与通信工程] TP713[自动化与计算机技术—检测技术与自动化装置]