摘要
利用对偶原则构造了一种新型的三点式振荡器。通过对电路结构的抽象化处理,得到了关于环路增益的Y参数算法,从而使环路增益的计算得以获得简便有效的表达。将文献[10]中相量形式关于起振条件的要求,应用在电路上,仔细考察了其中的计算与证明的细节,从中得知(φT(ω)/ω)ω=ω1的符号具有不依赖于元件参数具体数值的恒定性。这一电路具有比常规三点式振荡器更为丰富的工作组态,但每种组态临界起振时对于元件参数的要求又是简单的。最后,相关分析结论得到了仿真试验与硬件电路实验两方面的检验。
According to the principle of duality,a new type of three-terminal patterned oscillator is contrived.After the circuit is Abstracted,the loop-gain calculation on Y-parameters is surely deduced,which equips the calculation for the loop-gain with a succinct manner.Based on the inequalities served as en-oscillation condition in phasor method in acited reference,the analylic derivation on the circuit contains sound particulars,which reach the conclusion that the sign of (φT(ω)/ω)ω=ω1 may hold its invariance despite the changes of component parameters.The circuit has more enriched working configurations than normal three-terminal patterned oscillator,and for each specific configuration,the restrict-rules for the component parameters under the transition point for the startup of oscillation are simple.The theoretical results coincide with simulation experiments and hardware circuit experiments.
出处
《电子器件》
CAS
北大核心
2012年第5期522-525,共4页
Chinese Journal of Electron Devices
基金
四川省科技厅应用基础研究项目(2011JY0044)
关键词
正弦波振荡器
Y型接法的三点式振荡器
环路增益的Y参数算法
对偶原则
起振条件
sinusoidal oscillator
Y-connected three-terminal patterned oscillator
loop-gain calculation on Y-parameters
principle of duality
en-oscillation condition