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This paper reports on a novel modulation strategy for generation of band limited signals with binary switches, which was originally developed for audio power amplifiers, and on applying it to energy conversion. This modulation strategy has the extraordinary advantage that the signal band is free of harmonics or carrier intermodulation products. This so called ldquoZero-Position-Coding with Separated...
This paper deals with a single phase current- fed full bridge converter with high voltage gain for fuel cell applications. The clamping circuit is implemented by an auxiliary buck converter. An analytical investigation is given, describing the operating behaviour of the converter completely. This includes a distinction of the three operating modes: continuous mode, discontinuous mode and buck mode...
This paper presents new analytic results on the performance of sigma-delta modulated (SDM) three-phase voltage source inverters, in terms of harmonic distortion of output current, conduction and switching losses of the inverter devices, and rms current of the DC link capacitor. The results are compared with the same magnitudes for PWM. For easier analysis and better visualization, a three-dimensional...
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