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The article presents a new switch-mode power amplifier based on a cascade multilevel topology. The amplifier adopts phase-shifted PWM technology and enjoys a switching frequency, which is 2N times of that of a single unit. It has a small total output voltage ripple and only requires a small filter to suppress the switching frequency harmonics. The article lays emphasis on the design of the sliding...
The switching audio amplifiers are widely used in various portable and consumer electronics due to their high efficiency, but suffers from low audio performances due to inherent nonlinearity. This paper presents an integrated class D audio amplifier with low consumption and high audio performances. It includes a power stage and an efficient control based on sliding mode technique. This monolithic...
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