会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 51. 发明授权
    • Class B push-pull differential amplifiers of the single-end output
    • B类推挽差分放大器的单端输出
    • US5966050A
    • 1999-10-12
    • US112507
    • 1998-07-09
    • Hiroshi YoshinoSakiko Miura
    • Hiroshi YoshinoSakiko Miura
    • H03F1/30H03F3/30H03F3/45H03F1/14
    • H03F3/3067H03F1/307H03F3/45085H03F3/45094H03F2203/45631H03F2203/45644H03F2203/45648H03F2203/45696H03F2203/45708
    • A differential amplifier includes an input differential pair constituted by differential pair transistors whose common emitter is current-biased by a negative voltage source through a constant current source. An active load is formed by interconnecting through resistors input and output of a first and second current mirror circuit whose emitters serve as positive voltage sources. A collector output of each of the input differential pair is connected to each of the outputs of the first and second current mirror circuits. An output current amplifying stage comprises three emitter-grounded current amplifying stages whose emitters serve as positive voltage sources. The first current amplifying stage includes a capacity provided between the base and collector thereof and connected to one of current mirror outputs of the active load at the base thereof. The second and third current amplifying stages are connected to the other current mirror output of the active load at a common base. One of collector outputs thereof is connected to a negative voltage source through a resistor with a capacity provided between the base and collector. The other collector output is connected to the input of a third current mirror circuit whose emitters serve as negative voltage sources.
    • 差分放大器包括由差分对晶体管构成的输入差分对,其公共发射极通过恒定电流源被负电压源电流偏置。 通过将发射器用作正电压源的第一和第二电流镜电路的电阻器输入和输出互连来形成有源负载。 每个输入差分对的集电极输出连接到第一和第二电流镜电路的每个输出。 输出电流放大级包括三个发射极接地电流放大级,其发射极用作正电压源。 第一电流放大级包括设置在其基极和集电极之间的电容,并连接到其底部的有源负载的电流镜输出之一。 第二和第三电流放大级在共用基极连接到有源负载的另一电流镜输出端。 其集电极输出之一通过具有设置在基极和集电极之间的电容的电阻器连接到负电压源。 另一个集电极输出连接到发射器用作负电压源的第三电流镜电路的输入。
    • 57. 发明授权
    • Differential amplifier circuit providing high gain output at low power
supply voltage
    • 差分放大器电路在低电源电压下提供高增益输出
    • US5376897A
    • 1994-12-27
    • US171644
    • 1993-12-22
    • Hiroshi YoshinoSakiko Matsuo
    • Hiroshi YoshinoSakiko Matsuo
    • H03F3/30H03F3/45
    • H03F3/3067H03F3/45511H03F2203/45008H03F2203/45418H03F2203/45528
    • A differential amplifier circuit having a differential pair including first and second transistors of a first conductivity type, emitters of which are connected to each other, a first current source circuit disposed between the emitters of said first and second transistors and a first power source, a second current source circuit disposed between a collector of the first transistor and a second power source, a third current source circuit disposed between a collector of the second transistor and the second power source, and an active load circuit including a third transistor of the first conductivity type, having a collector connected to the collector of the first transistor and an emitter connected to the first power source, a fourth transistor of the first conductivity type, having a collector connected to the collector of the second transistor and an emitter connected to the first power source, a first load resistor disposed between the collector of the third transistor and a common connection node of bases of the third and fourth transistors and a second load resistor disposed between the collector of the fourth transistor and the common connection node of the bases of the third and fourth transistors.
    • 一种差分放大器电路,具有包括第一和第二晶体管的差分对,所述第一和第二晶体管的发射极彼此连接,设置在所述第一和第二晶体管的发射极之间的第一电流源电路和第一电源, 设置在第一晶体管的集电极和第二电源之间的第二电流源电路,设置在第二晶体管的集电极和第二电源之间的第三电流源电路,以及包括第一电导率的第三晶体管的有源负载电路 类型,具有连接到第一晶体管的集电极的集电极和连接到第一电源的发射极,第一导电类型的第四晶体管,具有连接到第二晶体管的集电极的集电极和连接到第一晶体管的发射极 电源,设置在第三晶体管的集电极和公共端之间的第一负载电阻器 第三和第四晶体管的基极的连接节点和设置在第四晶体管的集电极和第三和第四晶体管的基极的公共连接节点之间的第二负载电阻器。