寄生不灵敏的开关电容三相振荡器
PARASITIC INSENSITIVE SWITCHED-CAPACITOR THREE-PHASE OSCILLATORS
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摘要: 本文提出并讨论了两种使用开关电容技术设计振荡器的新方法。设计出的振荡器产生三相对称正弦信号,在通信、信号处理等领域有广泛应用。本文使用了两类RC振荡器作为模拟振荡器原型:一类是SD振荡器,另一类是三状态变量振荡器。由此实现的SC振荡器均易于集成,其振荡频率与时钟频率的关系是线性的,并具有电路特性对寄生电容不灵敏,电容比较小的显著特点。文中给出了比较结果和实验结果。实验结果与理论值相符。
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关键词:
- 振荡器; 开关电容振荡器; 三相振荡器
Abstract: A novel design of three-phase oscillator using switched-capacitor (SC) techniques is developed. Two classes of active RC prototypes are used to realize the switched-capacitor oscillators (SCO): one is the SD oscillator while the other is the three state variable oscillator. These SCOs have the following advantages: easily to be constructed in IC form, their oscillation frequency/clock frequency relationship being linear, and having the features of stray capacitance insensitivity and smaller capacitance ratio. The experimental results are in agreement with the theoretical ones. -
R. Gregorian, K. R. Matin, G. C. Temes, Proc. IEEE, 71(1983), 941.[2]W. B. Mikhael, S. Tu, IEBE Int. Symp. CAS, Chicago, (1981), 188.[3]W. B. Mikhael, S. Tu, IEEE Trans. on CAS, CAS-31(1984), 280.[4]E. Vittoz, IEEE J. of SC, SC-14(1979).[5]R. P. Colbeck, IEEE J. of SC, SC-19(1984), 996.[6]J. L. Huertas, A. Rodriguez-Vazquez, IEEE Trans.on CAS, CAS-31(1984), 310.[7]P. E. Fleischcr, A. Ganesun, K. R. Laker, IEEE J. of SC, SC-20(1985), 641.[8]L. T. Bruton, IEEE Trans. on CAS, CAS-22(1975), 168.[9]G. M. Jacobs, D. J.Allstok, R. W. Brodersen, P. R. Gray, IEEE Trans. on CAS, CAS-25(1978), 1014.[10]P. E. Fleischer, K. R. Laker, Bell Sys. Tech. J., 58(1979), 2235.[11]M. S. Lee, C. Chang, IEEE Trans. on CAS, CAS-28(1981), 265.[12]杨永明, 寄生不灵敏的开关电容三相正弦波振荡器, 重庆大学硕士学位论文, 1986年.[13]B. J. Hosticka, W. Brockherde, U. Kleine, R. Schweer, IEEE Trans, on CAS, CAS-31(1984), 354. -
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