Patent ID: 7969126
Filing Date: 2011-06-28
Classification: H03F,H03K

Abstract:
1. An amplifier comprising: an interleaved amplifier section receiving a modified input signal and providing an amplified output signal, where the interleaved amplifier section has a transfer characteristic G an interleaved PWM section receiving the modified input signal and providing an interleaved pulse output signal, where the interleaved PWM section has a transfer characteristic G a combiner circuit; a feedback circuit disposed to feedback at least a portion of the amplified output signal of the interleaved amplifier section to the summer circuit, where the further feedback circuit has a transfer characteristic H a further feedback circuit disposed to feedback at least a portion of the interleaved pulse output signal of the interleaved PWM section to the summer circuit, where the feedback circuit has a transfer characteristic H where the combiner circuit generates the modified input signal by subtracting the output signal of the feedback circuit and the output signal of the further feedback circuit from an input signal that is to be amplified.