Analysing Sinusoidal Oscillator Circuits: A Different Approach

  • Suhash Chandra Dutta Roy

Conventionally, in analysing sinusoidal oscillator circuits, one uses the Berkhausen’s criterion, viz.  = 1 in a positive feedback amplifier whose gain without feedback is A and whose feedback factor is β. However, the identification of A and β poses problems because of mutual loading of the amplifier and the feedback network. A different approach is presented here which does not require such identification. The method is based on assuming a voltage at an arbitrary node and coming back to it through the feedback loop.


Sinusoidal oscillator Different approach 

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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Electrical EngineeringIndian Institute of Technology DelhiNew DelhiIndia

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