公开(公告)号：US3887879A

公开(公告)日：1975-06-03

申请号：US45995274

申请日：1974-04-11

Applicant: RCA CORP

Inventor： RADOVSKY JONATHAN SAMUEL

IPC: G05F3/26 ,  H03F3/34 ,  H03F3/343 ,  H03F3/347 ,  H03F3/45 ,  H03F3/42

CPC classification number: G05F3/265 ,  H03F3/343 ,  H03F3/45071 ,  H03F3/45479

Abstract: A current mirror amplifier using a first and a second transistors with parallelled base-emitter circuits and collector electrodes connected to input and output terminals, respectively, includes a degenerative collector-to-base feedback connection with high current gain. Accordingly, input and output direct currents can be accurately proportioned without an inaccuracy caused by base current flows. The feedback connection may comprise a cascade connection of a third transistor and a fourth complementary conductivity transistor, each connected in commonemitter amplifier configuration.

Abstract translation: 分别使用并联的基极 - 发射电路和集电极连接到输入和输出端的第一和第二晶体管的电流镜放大器包括具有高电流增益的退化集电极 - 基极反馈连接。 因此，输入和输出直流电流可以准确地成比例，而没有由基极电流引起的不精确性。 反馈连接可以包括第三晶体管和第四互补导电晶体管的级联连接，每个以共发射极放大器配置连接。