High bandwidth power supply system with high efficiency and low distortion

摘要: A power supply system uses improved Class G amplifier architecture for high bandwidth operation with low distortion. The switches between multiple rails, depending on the signal level handled by system. lowest usable rail voltage is chosen to minimize dissipation in output driver, thus optimizing efficiency. Each has an associated driver capable of sourcing current output. When a selected, its enabled and other driver(s) not selected are disabled via separate disable control signals. disabling deselected may be delayed until above predetermined threshold sensed at driver. In addition, frequency switching rails limited various means designed limit distortion