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The equivalent circuit of the oscillators. 

The equivalent circuit of the oscillators. 

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Conference Paper
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In this paper, a method is presented to design and control the oscillation in circuits. In fact a mathematical approach will be presented to design the circuits called oscillator. The presented method is done in state space domain using the state variables of the circuit. The presented method is much easier than other classic methods for example to...

Context in source publication

Context 1
... 3: Consider the Hartly and Colpitts oscillators shown in Fig. 3 and Fig. 4 and their equivalent circuit shown in Fig. 5. The equivalent circuit can be summarized and drawn again as Fig. 6. By comparing Fig. 6 and Fig. 2 and using equation (42), the necessary and sufficient condition to appear sinusoidal oscillation on the output of the Hartly and Colpitts oscillators can be earn as the following equation where G m ( . ) is the large signal transconductance of the BJT used in the oscillator. It derives from the above equation ...

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