| 摘要 |
<p>An RF power amplifier system is provided including a plurality of the DC voltage sources of different magnitudes. An RF source provides an RF drive signal. N RF actuatable power amplifiers are provided. Each amplifier, when actuated, is connectable to a selected one of the voltage sources for providing an RF output signal amplified in accordance with the magnitude with the selected voltage source. One or more of the N RF power amplifiers are actuated in dependence upon the value of an input signal. One of the voltage sources is selectively connected to each of the actuated RF power amplifiers. <IMAGE></p> |
