Combining a buck-boost topology and Silent Switcher technology brings very low EMI at the highest power-conversion efficiency ...

Abstract: In this letter, a pulse alternation modulation (PAM) for four-level buck/boost (FLBB) converter is proposed. The inherent flaws of the existing modulations are analyzed. The low slope of the ...

The switching power supplies that regulate output voltage produce radiated emissions. Our tests compare waveforms that give clues as to how the chargers operate.