| 摘要 |
An output stage comprising a differential amplifier (T1, T2) which comprises an additional current source (20) which conducts, via a transistor (T4) which is connected parallel to the base and the collector of one of the transistors (T1) of the differential amplifier, an auxiliary current through the load resistor (1) of the transistor (T1). A further branch of said current source 20 is formed by a transistor (T5) which is connected in series with a resistor (3), the conduction of the transistor (T5) being (indirectly) controlled by the current flowing through a resistor (2) which is connected between the transistor (T4) and the source (20).
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