Amplifier arrangement

Details Amplifier arrangement Amplifier arrangement

H - Electricity

03

F

330/27

H03F 3/343 (2006.01) H03F 1/52 (2006.01) H03F 3/347 (2006.01)

Patent

CA 1149029

PHN 9690 7 25.8.1980 ABSTRACT : 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 tran- sistors and the collector of the other transistor provid- ing 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 emitter- follower 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.

371240

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