Patent ID: 8269557

Claim:
An electronic amplifier, comprising: a first stage, which is controlled by an input voltage UE and the operating voltage of which is at positive and/or negative potentials (V 1 +/V 1 A−) which are always constant with respect to the input voltage (UE); a second, impedance-converting stage, which is controlled by a voltage supplied by the first stage and the operating voltage of which is at positive and/or negative potentials (V 5 +/V 5 A−) which are always constant with respect to the voltage supplied by the first stage; and the operating voltage of the first stage is drawn from the positive and/or negative pole of voltage sources (V 1 /V 1 A), the opposite poles of which are at the same potential as the input signal (UE), and/or in that the operating voltage of the second stage is drawn from the positive and/or negative pole of voltage sources (V 5 , V 5 A) the opposite poles of which are at the same potential as the voltage supplied by the first stage.