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一种简单的电流控制振荡器 被引量:2

A Simple Current-Controlled Oscillator
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摘要 设计了一种简单的电流控制的振荡器.该电路充分利用系统内部基准电流源产生的电流信号对电容进行充放电,此振荡器是降压变换器内部电路的一部分,在3.3 V电源电压下,经过控制电路作用后,上升时间和下降时间很接近,使振荡器输出的谐波信号近似于三角波信号. A kind of simple current - controllled oscillator are designed, in which reference current sources are used to charge and diacharge capacitor. This oscillator is a part of BUCK converter. The rising time and the fall time approach very much, through control circuit under 3.3V reference voltage, causes the wave approach to the triangle wave.
出处 《辽宁大学学报(自然科学版)》 CAS 2008年第1期21-23,共3页 Journal of Liaoning University:Natural Sciences Edition
基金 沈阳市科技局资助项目(1032029-2-06)
关键词 振荡器 基准电流源 电容 oscillator reference current source capacitor
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  • 1袁涛,王华,方健,李肇基.一种CMOS电流控制振荡器的分析与设计[J].微电子学,2005,35(6):662-664. 被引量:14
  • 2Yeong Tsair Lin, Mei Chu Jen,Wen Yaw Chung, et al.A monolithic buck DC - DC converter with on chip PWM circuit[J].Micro-electronics, 2007,38(8-9) :923-930.
  • 3YU Shu Huan,CHEN Yi Ming,GUO Wei Dong,et al.A digital trim controlled on-chip RC oscillator[A].Proceedings of the 44th IEEE 2001 Midwest Symposium Circuits and Systems[C].2001 : 882-885.
  • 4BEHZAD RAZAvI.Design of analog CMOS integrated circuit [M].New York :McGraw Hill,2001 : 135-139.
  • 5ALLEN P E, HOLBERG D R.CMOS analog circuit design 2nd ed[M].Oxford : Oxford University Press, Inc.2002 : 439- 483.
  • 6Yeong Tsair Lin,Mei Chu Jen,Wen Yaw Chung,et al.Amonolithic buck DC-DC converter with on chip PWM eir-cuit[J].Micro-electronics,2007,38(8-9):923-930.
  • 7YU Shu Huan,CHEN Yi Ming,GUO Wei Dong, et al.Adigital trim controlled on-chip RC oscillator[A]. Proceedings of the 44^th IEEE 2001 Midwest Symposium Circuits and Systems[C].2001:882-885.
  • 8SUNDARESAN K,ALLEN P E,AYAZI F.Process and temperature compensation in a 7-MHz CMOSclock oscillator[J].IEEEJ Sol Sta Circ,2006,41(2):433-442.
  • 9李俊宏,李平,胥锐.一种基于标准CMOS工艺的低成本振荡器的设计[J].微电子学,2007,37(4):543-547. 被引量:7

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