| 摘要 |
A measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit comprises a first transistor ( 4 f). The output current ( 27 ) of the first transistor ( 4 f) is characteristic of the output current ( 28 ) of the amplifier ( 20 ), in particular, the above is essentially proportional to the output current ( 28 ) of the amplifier ( 20 ). The first transistor ( 4 f) is controlled in parallel to at least one second transistor ( 4 a-4e), driving the amplifier output ( 8 ).
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