| 摘要 |
Embodiments of the present invention a power supply circuit of a power amplifier and disclose a terminal, relating to the communication field, to improve the efficiency of the power amplifier in the terminal and then reduce power consumption of the terminal. The power supply circuit of the power amplifier includes a direct current/direct current converter chip, where the direct current/direct current converter chip includes an input pin, an inductance pin, and a feedback pin, and the input pin is connected to a power supply and the inductance pin is connected to a voltage input end of the power amplifier through an LC storage circuit. A control circuit is connected between the voltage input end of the power amplifier and the feedback pin; the control circuit includes a control voltage, where the control voltage adjusts the voltage at the voltage input end of the power amplifier through the control circuit and the control voltage is variable. The terminal includes the power supply circuit of the power amplifier. The technical solutions provided in the embodiments of the present invention are applicable to any terminal using a power amplifier to amplify radio frequency signals.
|
