| 摘要 |
In the present invention, a power amplifying device comprises the following: a generation means for generating a second envelop signal generated by carrying out first signal processing on a first envelope signal that corresponds to the envelope of an input signal, and a third envelope signal generated by carrying out second signal processing on the first envelope signal; a first power supply voltage generation means for generating a first power supply voltage that varies in accordance with the second envelope signal; a second power supply voltage generation means for generating a second power supply voltage that varies in accordance with the third envelope signal; a first amplification means for generating a first amplified signal by amplifying an input signal using the first power supply voltage; and a second amplifying means for generating a second amplified signal by amplifying the first amplified signal using the second power supply voltage. The first signal processing is carried out in accordance with the specifications of the first amplification means, and the second signal processing is carried out in accordance with the specifications of the second amplification means. |
