Power booster audio amplifier

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.