Amplifier employing digital modulator circuit

摘要: An amplifier (FIGS. 1-3) is disclosed for amplifying an amplitude and frequency varying input signal. The includes a circuit (24, 100) responsive to the signal provide digital representation thereof. In addition, plurality of sources (30-36) are provided which each associated Another (38-52) combines selected ones signals in accordance with first combined having substantially same waveform as, but greater than several embodiments, (74, 76-78) provides error difference between desired actual forms This derive corrected