| 摘要 |
An apparatus and method are provided for a Class G amplifier that includes an output stage, where an output stage supply voltage is selected based upon an input signal voltage of the output stage. The amplifier may also include an input stage coupled to the output stage, where the input stage generates the input signal voltage for the output stage. The output stage may include first and second MOS devices operating as a Class AB amplifier, and the output stage supply voltage selected based upon gate voltages of the MOS devices. The supply voltages may be generated by a buck converter, and a charge pump that is coupled to the buck converter. |
