| 摘要 |
<p>This audio amplifier comprises: - an input (12) for an audio signal to be amplified (Vin) and an output (14) for powering a load (16) on the basis of the amplified audio signal; - a generator (18) of reference voltage of very high linearity and low output impedance, able to receive as input the audio signal to be amplified (Vin); - a power current generator (19) comprising a power voltage generator (20) whose output is connected to the output of the reference voltage generator (18) through a coupling inductance (22); and - means (32, 40, 42, 60) for introducing, for its control, as input to the power current generator (19) a signal representative of the current (iA) provided as output by the reference voltage generator (18). The said means (32, 40, 42, 60) for introducing, for its control, as input to the current generator (19), a signal representative of the current (iA) provided as output from the reference voltage generator (18), are able to introduce, furthermore, a signal (Formula (I)), representative of the product of the value (L(iD)) of the coupling inductance (22) and of the derivative with respect to time of the current (Formula (I)) provided to the load (16).</p> |
