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The first period‐doubling bifurcation of a dc–dc buck converter controlled by a zero‐average dynamic strategy is studied in detail. Owing to the saturation of the duty cycle, this bifurcation is followed by a border‐collision bifurcation, which is the main mechanism to introduce instability and chaos in the circuit. The multiparameter analysis presented here leads to a complete knowledge of the relatioship...
The analytical spectrum of a pulse width modulated signal with dead-times is derived in this paper. The results are valid for any bounded, band limited signal. The harmonic content of the output voltage is computed by dividing the PWM signal in three components: a 50% duty cycle square-wave, a symmetrical, time-varying duty cycle square wave, and a pulse train that accounts for the dead-time. Specific...
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