UA90280U - Current reflector - Google Patents

Abstract

A current reflector comprises four transistors, a zero bus, input and output buses, with input bus being connected to a collector and base of first transistor, also to the base of second transistor; the emitter of first transistor is connected to the collector and base of third transistor, and to the base of fourth transistor, the emitter of second transistor is connected to the collector of fourth transistor. The emitter of third and fourth transistors are connected to the zero bus, the second transistor collector is connected to the output bus. Three transistors and four current sources are introduced, the emitter of fifth transistor is united with the collector of second transistor and connected to the united collector of sixth transistor and first terminal of third current source, the base of fifth transistor and emitter of sixth transistor are connected to the second terminal of second current source, the bases of sixth and seventh transistors are united and connected to the collector of seventh transistor and to second terminal of fourth current source, the emitter of seventh transistor is connected to the collector and base of eighth transistor, the collector of fifth transistor is connected to the output bus, the first terminal of first current source, first terminal of second and fourth current source are connected to the zero bus.