| 摘要 |
The amplifier ( 10 ) includes: an output ( 14 ) for feeding a load ( 16 ); a voltage generator ( 18 ) presenting very high linearity and very low output impedance; a current source ( 40 ) having its output connected to the output of the voltage generator ( 18 ) at a coupling point (SCP) connected to the output ( 14 ), the output of the voltage generator ( 18 ) being connected directly to the coupling point (SCP) without any resistive element being interposed between them; and a control stage ( 42 ) for controlling the current source ( 40 ) from the current (i<SUB>1</SUB>) delivered by the voltage generator ( 18 ). The control stage ( 42 ) for controlling the current source ( 40 ) includes current measurement elements ( 43 ) for measuring the current (i<SUB>1</SUB>) delivered by the voltage generator ( 18 ), which elements are disposed solely upstream from the output ( 14 ) for feeding the load ( 16 ).
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