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A generation method of a driving signal for a dual-mode supply modulator (DMSM) that supplies dual dc supply voltages to a power amplifier (PA) in a 3-level envelope delta-sigma modulator (EDSM) transmitter is proposed and confirmed by simulation and measurement. This method is feasible in terms that it generates a DMSM driving signal of trackable speed by the DMSM through a real-time operation in...
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