UA89909U - Current reflector - Google Patents

Abstract

A current reflector comprises three transistors, input and output buses, a zero bus, the input bus is connected to the collector of first transistor, the emitters of first and second transistors are united and connected to the zero bus, the bases of first and second transistors are united and connected to the collector of second transistor, as well as to the emitter of third transistor, the collector of third transistor is connected to the output bus; moreover, three transistors, two current sources and a voltage source are introduced. The input bus is connected to the united bases of fourth and sixth transistors, as well as to the united bases of fourth transistors and first current source, the emitters of fourth and sixth transistors are united and connected to the emitter of fifth transistor, the base of fifth transistor is connected to the united collectors of first transistor and second current source, the base of sixth transistor is connected to the emitter of third transistor, the collector of sixth transistor is connected to the output bus, the base of third transistor is connected to the voltage source, the collector of third transistor is connected to the collector of second transistor, the base of second transistor is connected to the base of first transistor; the first output of first current source and terminal of second current source are connected to the zero bus.