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    Bi-directional voltage translator
    1.
    发明授权
    Bi-directional voltage translator 失效
    双向电压转换器

    公开(公告)号：US6154057A

    公开(公告)日：2000-11-28

    申请号：US340232

    申请日：1999-07-01

    申请人： Shuyong Shao ,  Hung Vuong ,  Charles Browder ,  Christine Purcell

    发明人： Shuyong Shao ,  Hung Vuong ,  Charles Browder ,  Christine Purcell

    IPC分类号： H03K19/018 ,  H03K19/0175

    CPC分类号： H03K19/01843

    摘要： A bi-directional voltage translator (125) has a first port (201) that communicates a signal at a first voltage level, and second port (202) that communicates a signal at a second voltage level different from the first voltage level. A switching circuit, including a bipolar junction transistor (210) and a switch (220), couples both ports (201, 202). The transistor (210) has a collector (211) coupled, via a pull-up circuit (206), to a voltage source corresponding to the first voltage level, and to the first port (201), and an emitter (212) coupled to the second port. The base (213) of the transistor (210) is coupled, via a pull-up circuit (207), to a voltage source corresponding to the second voltage level. Preferably, the switch (220) is Schottky diode or other diode having a forward voltage drop.

    摘要翻译： 双向电压转换器（125）具有以第一电压电平传送信号的第一端口（201）和以不同于第一电压电平的第二电压电平传送信号的第二端口（202）。 包括双极结型晶体管（210）和开关（220）的开关电路耦合两个端口（201,202）。 晶体管（210）具有经由上拉电路（206）耦合到对应于第一电压电平的电压源和耦合到第一端口（201）的集电极（211），并且发射极（212）耦合 到第二个港口 晶体管（210）的基极（213）经由上拉电路（207）耦合到对应于第二电压电平的电压源。 优选地，开关（220）是具有正向压降的肖特基二极管或其它二极管。

    Bi-directional signal transmission system
    2.
    发明授权
    Bi-directional signal transmission system 有权
    双向信号传输系统

    公开(公告)号：US07417464B2

    公开(公告)日：2008-08-26

    申请号：US11856009

    申请日：2007-09-14

    申请人： John Crawford

    发明人： John Crawford

    IPC分类号： H03K19/0175

    CPC分类号： H03K19/01843 ,  H03K19/0826

    摘要： A bi-directional signal transmission system including, a first bi-directional signal path having circuitry adapted to generate a logic high level on said first path, one or more first stations connected to the first bi-directional signal path adapted to monitor a logic level on said first path, and to generate a logic low level on said first path, an interface device operatively coupled to the first bi-directional signal path, said interface device having a first receive input also capable of functioning as an output capable of pulling the first path low; and a second bi-directional signal path coupled to a transmit output and a receive input on the buffered side of the interface device, said interface device includes a first means for generating on the first bi-directional signal path a medium logic level in response to a low level on the receive input on the buffered side, and a second means for generating on the transmit output on the buffered side, a low logic level in response to a low level on the first bi-directional signal path, otherwise generating a high level on the said transmit output, wherein the one or more first stations are adapted to detect the medium and the low levels on the first bi-directional signal path as LOW, and the high logic level on the first bi-directional signal path as HIGH, and wherein further the first means for generating the medium logic level on the first signal path includes an open collector transistor, the emitter of which is connected to VEE, with its collector pulling the first signal path low through a diode connected transistor.

    摘要翻译： 一种双向信号传输系统，包括具有适于在所述第一路径上产生逻辑高电平的电路的第一双向信号路径，连接到所述第一双向信号路径的一个或多个第一站适于监视逻辑电平 在所述第一路径上，并且在所述第一路径上生成逻辑低电平，可操作地耦合到所述第一双向信号路径的接口设备，所述接口设备具有第一接收输入，其还能够用作能够拉动 第一路低; 以及耦合到所述接口设备的缓冲侧上的发射输出和接收输入的第二双向信号路径，所述接口设备包括第一装置，用于在第一双向信号路径上响应于 在缓冲侧的接收输入上的低电平，以及用于在缓冲侧的发送输出上产生响应于第一双向信号路径上的低电平的低逻辑电平的第二装置，否则产生高电平 其中所述一个或多个第一站适合于将第一双向信号路径上的介质和低电平检测为低电平，并且第一双向信号路径上的高逻辑电平为HIGH ，并且其中所述用于在所述第一信号路径上产生所述介质逻辑电平的所述第一装置包括开路集电极晶体管，其发射极连接到VEE，其集电极将所述第一信号路径拉低 通过二极管连接晶体管。

    Information handling system featuring a BJT-based bi-directional level translator
    5.
    发明授权
    Information handling system featuring a BJT-based bi-directional level translator 有权
    信息处理系统采用基于BJT的双向电平转换器

    公开(公告)号：US06847230B2

    公开(公告)日：2005-01-25

    申请号：US10379237

    申请日：2003-03-04

    申请人： Joseph D. Mallory ,  Nikolai V. Vyssotski

    发明人： Joseph D. Mallory ,  Nikolai V. Vyssotski

    IPC分类号： H03K19/018 ,  H03K19/0175

    CPC分类号： H03K19/01843

    摘要： A method of implementing bi-directional level translation in an information handling system includes coupling a first device port via a first resistor to a first voltage. A second device port is coupled via a second resistor to a second voltage different from the first voltage. Lastly, a single bipolar junction transistor (BJT) couples the first device port to the second device port, the single bipolar junction transistor including an emitter coupled to the first device port, a base coupled via a third resistor to the first voltage, and a collector coupled to the second device port, wherein the bipolar junction transistor operates as a bi-directional level translator between the first and second device ports.

    摘要翻译： 在信息处理系统中实现双向电平转换的方法包括将第一设备端口经由第一电阻器耦合到第一电压。 第二设备端口经由第二电阻器耦合到不同于第一电压的第二电压。 最后，单个双极结晶体管（BJT）将第一器件端口耦合到第二器件端口，单个双极结晶体管包括耦合到第一器件端口的发射极，经由第三电阻器耦合到第一电压的基极，以及 集电极耦合到第二器件端口，其中双极结晶体管在第一和第二器件端口之间作为双向电平转换器工作。

    Bi-directional voltage translator
    8.
    发明申请
    Bi-directional voltage translator 失效
    双向电压转换器

    公开(公告)号：US20060044011A1

    公开(公告)日：2006-03-02

    申请号：US10930091

    申请日：2004-08-31

    申请人： Mark Andresen ,  Robert Christopher ,  James Parsonese ,  William Thomas ,  Wilson Velez ,  David Vieira ,  Menlo Wuu

    发明人： Mark Andresen ,  Robert Christopher ,  James Parsonese ,  William Thomas ,  Wilson Velez ,  David Vieira ,  Menlo Wuu

    IPC分类号： H03K19/0175

    CPC分类号： H03K19/01843

    摘要： A bi-directional voltage translator is disclosed. The bi-directional voltage translator includes a step-up voltage translator for converting signals of a first voltage level to signals of a second voltage level, and a step-down voltage translator for converting signals of the second voltage level to signals of the first voltage level. The step-up voltage translator includes a first source sense circuit, a first block feedback circuit and a first output driver circuit. The step-down voltage translator includes a second source sense circuit, a second block feedback circuit and a second output driver circuit.

    摘要翻译： 公开了一种双向电压转换器。 双向电压转换器包括升压电压转换器，用于将第一电压电平的信号转换成第二电压电平的信号;以及降压电压转换器，用于将第二电压电平的信号转换成第一电压的信号 水平。 升压电压转换器包括第一源检测电路，第一块反馈电路和第一输出驱动器电路。 降压电压转换器包括第二源检测电路，第二块反馈电路和第二输出驱动器电路。