POWER-SUPPLY DEVICE AND POWER-AMPLIFICATION DEVICE USING SAME,申请号WO2011JP61599-传众专利搜索

POWER-SUPPLY DEVICE AND POWER-AMPLIFICATION DEVICE USING SAME

申请公布号：WO2011145710(A1)

申请号：WO2011JP61599

申请日期：2011.05.13

申请公布日期：2011.11.24

申请人：

NEC CORPORATION;KUNIHIRO, KAZUAKI;WATANABE, YASUSHI

发明人：KUNIHIRO, KAZUAKI;WATANABE, YASUSHI

分类号：H03F1/06;H02M3/28;H03F1/02;H03F1/32;H03F3/24

主分类号：H03F1/06

摘要：<p>Disclosed is a highly efficient power-supply device with low waveform distortion. Also disclosed is a highly efficient, highly linear power-amplification device using said power-supply device as a power supply. The disclosed power-supply device is provided with: a linear amplification unit (400) that linearly amplifies an input signal and outputs a current (Ic); and a switching amplification control unit (500) that, on the basis of the magnitude of the current (Ic) outputted from the linear amplification unit (400), outputs a current (Im) using a plurality of switching amplification units (601, 602, ..., 60n) that each output a prescribed voltage. Said power-supply device generates an output voltage (Vout) in accordance with the waveform of the input signal and outputs a current (Iout) consisting of the aforementioned currents (Ic and Im) combined.</p>