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    • 82. 发明专利
    • Transconductor having structure of crossing pairs
    • 具有交叉对结构的交叉耦合器
    • JP2003273665A
    • 2003-09-26
    • JP2003055088
    • 2003-03-03
    • Samsung Electronics Co Ltd三星電子株式会社
    • LEE JEONG-WONCHO GEA-OKLEE JUNG-EUN
    • H03F1/42H02M7/217H03F1/22H03F3/45
    • H03F3/45807H02M7/217H03F1/223H03F3/45286H03F2203/45394
    • PROBLEM TO BE SOLVED: To provide a transconductor which widens an operation frequency range while maintaining linearity and is operated even under a high voltage.
      SOLUTION: The transconductor having a structure of crossing pairs is composed of first and second MOS transistors mutually connecting their drain terminals and their source terminals in series to a voltage source, a first bipolar transistor connecting its collector terminal with the output current terminal of a current source and connecting its emitter terminal with the gate terminal of said second MOS transistor, a second bipolar transistor connected in series to the first bipolar transistor and connecting its base terminal to a node between said first MOS transistor and said second MOS transistor, and a third MOS transistor connecting its gate terminal to an external signal input terminal and connecting its drain terminal to the emitter terminal of said second bipolar transistor.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种跨导体,其可以在保持线性的同时加宽工作频率范围,并且即使在高电压下也能够工作。 解决方案:具有交叉对结构的跨导体由将漏极端子及其源极端子串联连接到电压源的第一和第二MOS晶体管构成,将其集电极端子与输出电流端子连接的第一双极晶体管 并将其发射极端子与所述第二MOS晶体管的栅极端子连接,第二双极晶体管串联连接到第一双极晶体管,并将其基极端子连接到所述第一MOS晶体管和所述第二MOS晶体管之间的节点, 以及将其栅极端子连接到外部信号输入端子并将其漏极端子连接到所述第二双极晶体管的发射极端子的第三MOS晶体管。 版权所有(C)2003,JPO
    • 83. 发明专利
    • Pulse duty controller
    • 脉冲控制器
    • JPS5771026A
    • 1982-05-01
    • JP13143781
    • 1981-08-21
    • Aisin Seiki Co Ltd
    • IWASAKI SHINICHIROU
    • H03K5/04G05F1/38H02M3/28H02M7/217H03K5/00
    • G05F1/38H02M7/217
    • PURPOSE: To control large electric power with less electronic elements by winding an amorphous soft magnetic material with the 1st and 2nd coils and by connecting current control elements while applying pulses to the 1st coil and a voltage to the 2nd coil.
      CONSTITUTION: Output pulses from a pulse generator PGE are inputted to a pulse duty PD controller PDC. The PDC is provided with PD elements 1 and 2 wound with coils 1b and 1c; pulses (a) and (b) differing in polarity are applied to one-side terminals of the coils 1b of the elements 1 and 2, and an output terminal 3 is connected to the other-side terminals through diodes D4 and D5. Plus voltages of the pulses (b) and (c) are applied to one-side terminals of the coils 1c of the elements 1 and 2, and the other-side terminals are connected to a current control transistor TR6 for the coils 1c through Ds 8 and 7. Magnetic flux excited when the coils 1b are fed with electricity is canceled by feeding electricity to the coils 1c, so controlling the currents of the coils 1c through the TR6 varies the duty ratio of the feed to the coils 1b.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:通过用第一和第二线圈缠绕非晶软磁材料并通过连接电流控制元件同时向第一线圈施加脉冲和向第二线圈施加电压来控制较小电子元件的大功率。 构成:脉冲发生器PGE的输出脉冲输入到脉冲占空比PD控制器PDC。 PDC设有缠绕有线圈1b和1c的PD元件1和2; 对元件1和2的线圈1b的一侧端子施加极性不同的脉冲(a)和(b),并且输出端子3通过二极管D4和D5连接到另一侧端子。 将脉冲(b)和(c)的加电压施加到元件1和2的线圈1c的一侧端子,并且另一侧端子连接到用于线圈1c至Ds的电流控制晶体管TR6 通过向线圈1c供电来消除线圈1b被馈电时激励的磁通,因此通过TR6控制线圈1c的电流来改变馈送到线圈1b的占空比。