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1200 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 filtering,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.
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