Another approach to design a sinusoidal oscillator: Ensuring the oscillation stability

2013 International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2013-12-02 DOI:10.1109/ICITEED.2013.6676280

Dzuhri Radityo Utomo

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引用次数: 2

Abstract

Another approach to design a sinusoidal oscillator is proposed. This design is proposed to improve the oscillation stability of sinusoidal oscillator. The ideal model of this oscillator does not have any specific oscillation criterion. This property ensures the oscillation stability of this oscillator. Any changes in oscillation frequency does not violate the oscillation stability. This oscillator design can be implemented using op-amps and passive components. But the characteristics of op-amps influence the oscillator, thus change the characteristics of this oscillator. So a more realistic model is needed to predict the behaviour of this oscillator circuit more accurately. The realistic model is built by considering the characteristics of op-amps. Based on this model, a gain adjustment is needed by this circuit. Without any proper adjustment, a stable oscillation does not occur in this circuit. The realistic model is also used to predict the oscillation frequency of this oscillator and it produces a result that is similar to the simulation result.

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设计正弦波振荡器的另一种方法是:保证振荡稳定性

提出了另一种设计正弦振荡器的方法。该设计是为了提高正弦振荡器的振荡稳定性。该振子的理想模型没有特定的振荡准则。这一性质保证了振荡器的振荡稳定性。振荡频率的任何变化都不违反振荡稳定性。这种振荡器设计可以使用运算放大器和无源元件来实现。但是运放的特性会影响振荡器，从而改变振荡器的特性。因此，需要一个更真实的模型来更准确地预测该振荡器电路的行为。考虑运算放大器的特性，建立了仿真模型。基于该模型，该电路需要进行增益调整。如果不作适当的调整，这个电路就不会产生稳定的振荡。并利用现实模型对该振荡器的振荡频率进行了预测，得到了与仿真结果相近的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2013 International Conference on Information Technology and Electrical Engineering (ICITEE)

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