| 摘要 |
<p>PHN 9690 7 25.8.1980 : Amplifier arrangement. An amplifier arrangement, specifically for use in power protection circuits. It comprises two transistors arranged as a current mirror, the signal voltage being applied to the emitter electrode of one of the two transistors and the collector of the other transistor providing an output voltage via a resistor. The input circuit of the current mirror, in which the one transistor is included, is driven by a current source. Via an emitterfollower transistor the current source is coupled to the common base electrodes of the two transistors. The collector current of said emitter-follower transistor is fed to a tapping on said resistor, in order to compensate for variations in the current gain factor of the transistors.</p> |
