| 新型低噪声微机械陀螺闭环驱动电路 |
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| 引用本文： | 孙明,谭晓昀,李子芃,刘晓为.新型低噪声微机械陀螺闭环驱动电路[J].哈尔滨工业大学学报,2011,43(9):38-41. |
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| 作者姓名： | 孙明 谭晓昀 李子芃 刘晓为 |
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| 作者单位： | 哈尔滨工业大学MEMS中心;微系统与微结构制造教育部重点实验室; |
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| 基金项目： | 国家高技术研究发展计划资助项目(2008AA042201) |
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| 摘 要： | 为将陀螺结构引入到闭环驱动电路的仿真系统中,建立了与微机械陀螺结构等价的电学模型.微机械陀螺闭环驱动电路基于电荷泵锁相环技术,用低噪声跨阻放大器代替传统的电荷放大器实现I-V转换,有效避免了电荷放大器在实现I-V转换时所产生的随陀螺固有频率变化而变化的相位误差.用基于CCCII＋技术的有源电阻代替无源电阻,大大降低了电...
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| 关 键 词： | 闭环驱动电路 微机械陀螺 CCCII+ |
New low noise closed-loop driving circuit for the micro-gyroscope |
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| SUN Ming,TAN Xiao-yun,LI Zi-peng and LIU Xiao-wei.New low noise closed-loop driving circuit for the micro-gyroscope[J].Journal of Harbin Institute of Technology,2011,43(9):38-41. |
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| Authors: | SUN Ming TAN Xiao-yun LI Zi-peng and LIU Xiao-wei |
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| Affiliation: | SUN Ming1,TAN Xiao-yun1,LI Zi-peng1,LIU Xiao-wei1,2(1.MEMS Centre,Harbin Institute of Technology,150001 Harbin,China 2.Key Laboratory of Micro-Systems and Micro-Structures Manufacturing,Ministry of Education,China) |
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| Abstract: | To bring the fabric of the micro-gyroscope into simulation of total closed-loop system,the equivalent electrical analogue of drive part of the micro-gyroscope is built.The new low noise closed-loop driving circuit is based on the phase-locked technology using the transimpedance amplifier to realize I-V transformation which effectively avoids phase error caused by the charge amplifier.By using the CCCII+technology to realize the floating resistor,the noise of the total closed-loop driving circuit is reduced.... |
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| Keywords: | closed-loop micro-gyroscope CCCII |
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