Modeling the Influence of Electromagnetic Interference on Failures in the Operation of Clock Generators

摘要

The influence of electromagnetic impulse interference on operation stability of clock generators is theoretically studied. The Van der Pol oscillator is used as a mathematical model of the generator. An abrupt change in the meander phase of generated oscillations is occurred under the influence of impulse interference. An analytical method has been developed that makes it possible to distinguish a certain class of interference, under the influence of which the magnitude of the phase shift depends on the amplitude and duration of the interference. It is shown that the magnitude of the phase shift strongly depends on the section of the self-oscillation meander, which is affected by the noise. This dependence is explained within the proposed analytical approach.