2002•IEEE Transactions on Consumer ElectronicsRequires access

Power booster audio amplifier

Milan D. Prokin

Abstract

A novel power booster amplifier is based on a modified half-bridge topology using separated switches and a floating bridge capacitor. The power booster amplifier provides four times higher peak power at the loudspeaker than the peak power of a class-D amplifier using the same power supply. Total harmonic distortion and amplifier efficiency are similar to a class-D amplifier. A universal integrated circuit supporting Class-D, boost bridge amplifiers and power booster amplifiers is proposed.

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Available abstract

Key concepts: Amplifier, Direct-coupled amplifier, Linear amplifier, RF power amplifier, Booster (rocketry), Electrical engineering, Cascade amplifier, Power-added efficiency