| 摘要 |
A circuit is provided comprising at least two amplifiers (20,22,120,122,220,222,320,322) electrically connected in parallel. The circuit includes a controller (38,138,238,338) operative to reduce the difference in amplitude between output signals from the amplifiers. The controller (38,138,238,338) is operative to determine or receive an indicator of the difference in amplitude between the output signal (A) of a first amplifier (20,120,220,320) and the output signal (B) of a second amplifier (22,122,222,322), and to adjust the gain of at least one of the first and second amplifiers dependent upon the indicator. <IMAGE> |
