Abstract:Switching mode supplies usually emit electromagnetic interferences (EMI) at switching frequency and its harmonics. EMI can be reduced by making these systems worked on chaotic state, but this may induce higher output voltage ripple. Based on a new voltage feedback method, Buck converter can display complex nonlinear behaviour. Compared with periodic state, power spectrum of inductance current is improved at chaotic state, the peak values at switching frequency and its harmonics are decreased; the output ripple… Show more
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