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    • 54. 发明申请
    • Signal output circuit
    • 信号输出电路
    • US20090243691A1
    • 2009-10-01
    • US12382833
    • 2009-03-25
    • Kenji KimuraMasanori Sato
    • Kenji KimuraMasanori Sato
    • H03L5/00
    • H03F3/087H03F3/50H03F2200/297H03F2203/45342H03F2203/5027
    • Disclosed is a signal output circuit comprising: a first transistor of an emitter follower configuration, which receives an input signal; a second transistor of an emitter follower configuration, which receives the input signal, and has an output connected to an external load (106); a comparator circuit which has an input pair connected via resistors to emitters of the first and the second transistors; a first current mirror circuit which has an input connected to an output of a first current source transistor and an output connected to an emitter of the first transistor; and a second current mirror circuit which has an input connected to a connection node of an output of a second current source transistor and an output of the comparator circuit, and has an output connected to an emitter of the second transistor.
    • 公开了一种信号输出电路,包括:射极跟随器配置的第一晶体管,其接收输入信号; 射极跟随器配置的第二晶体管,其接收输入信号,并且具有连接到外部负载(106)的输出; 比较器电路,其具有通过电阻器连接到第一和第二晶体管的发射极的输入对; 第一电流镜电路,其具有连接到第一电流源晶体管的输出的输入端和连接到第一晶体管的发射极的输出; 以及第二电流镜电路,其具有连接到第二电流源晶体管的输出和比较器电路的输出的连接节点的输入,并且具有连接到第二晶体管的发射极的输出。