UA61272U - Pull-push balanced current amplifier - Google Patents

Abstract

A push-pull balanced current amplifier comprises first and second current sources, positive and negative power distribution buses, input and output buses, a zero bus, six transistors, input bus is connected to emitters of third and fourth transistors, emitters of first and second transistors are united and connected to zero bus, collectors of third and fourth transistors are connected to bases of fifth and sixth transistors, correspondingly, bases of third and fourth transistors are connected to bases and collectors of first and second transistors correspondingly, as well as to first terminals of first and second current sources, second terminals of first and second current sources are connected to positive and negative power distribution buses correspondingly; in addition, sixteen transistors are incorporated, collectors of third and fourth transistors are connected to collectors of seventh and eighth transistors correspondingly. Bases of seventh and eighth transistors are connected to collectors and bases of ninth and tenth transistors, correspondingly, as well as to collectors of eleventh and twelfth transistors correspondingly; emitters of eleventh and twelfth transistors are united and connected to fifteenth and sixteenth transistors, correspondingly.