Process for manufacturing an electrical device comprising a PTC element
    1.
    发明授权
    Process for manufacturing an electrical device comprising a PTC element 失效
    一种用于制造包括PTC元件的电气装置的方法

    公开(公告)号:US5699607A

    公开(公告)日:1997-12-23

    申请号:US642655

    申请日:1996-05-03

    摘要: An electrical device comprising a resistive element having a first electrode in electrical contact with the top surface of the resistive element and a second electrode in electrical contact with the bottom surface of the resistive element. An insulating layer is formed on the first and second electrodes. A portion of the insulating layer is removed from the first and second electrodes to form first and second contact points. A conductive layer is formed on the insulating layer and makes electrical contact with the first and second electrodes at the contact points. The conductive layer has portions removed to form first and second end terminations separated by electrically non-conductive gaps. The wrap-around configuration of the device allows for an electrical connection to be made to both electrodes from the same side of the electrical device.

    摘要翻译: 一种电气装置,包括具有与电阻元件的顶表面电接触的第一电极的电阻元件和与电阻元件的底表面电接触的第二电极。 绝缘层形成在第一和第二电极上。 从第一和第二电极去除绝缘层的一部分以形成第一和第二接触点。 导电层形成在绝缘层上,并在接触点处与第一和第二电极电接触。 导电层具有去除的部分,以形成由非导电间隙分开的第一和第二端部端接。 该装置的环绕结构允许从电气装置的同一侧对两个电极进行电连接。

    Surface mountable electrical device comprising a PTC element
    2.
    发明授权
    Surface mountable electrical device comprising a PTC element 失效
    可表面安装的电气设备包括PTC元件

    公开(公告)号:US5900800A

    公开(公告)日:1999-05-04

    申请号:US642597

    申请日:1996-05-03

    摘要: An electrical device having a resistive element having a first electrode in electrical contact with the top surface of the resistive element and a second electrode in electrical contact with the bottom surface of the resistive element. An insulating layer is formed on the first and second electrodes. A portion of the insulating layer is removed from the first and second electrodes to form first and second contact points. A conductive layer is formed on the insulating layer and makes electrical contact with the first and second electrodes at the contact points. The conductive layer has portions removed to form first and second end terminations separated by electrically non-conductive gaps. The wrap-around configuration of the device allows for an electrical connection to be made to both electrodes from the same side of the electrical device.

    摘要翻译: 一种具有电阻元件的电气元件,该电阻元件具有与电阻元件的顶表面电接触的第一电极和与该电阻元件的底表面电接触的第二电极。 绝缘层形成在第一和第二电极上。 从第一和第二电极去除绝缘层的一部分以形成第一和第二接触点。 导电层形成在绝缘层上,并在接触点处与第一和第二电极电接触。 导电层具有去除的部分,以形成由非导电间隙分开的第一和第二端部端接。 该装置的环绕结构允许从电气装置的同一侧对两个电极进行电连接。

    Automatic power control and laser slope efficiency normalizing circuit
    3.
    发明授权
    Automatic power control and laser slope efficiency normalizing circuit 失效
    自动功率控制和激光斜率效率归一化电路

    公开(公告)号:US06711189B1

    公开(公告)日:2004-03-23

    申请号:US09498221

    申请日:2000-02-04

    IPC分类号: H01S313

    摘要: Automatic power control (APC) is provided by a) a variable output voltage differential receiver/driver, which receiver is responsive to data signals for generating a voltage, the laser driver output voltage amplitude being controlled by a first potentiometer on an integrated circuit generating an AC current signal for summing with a DC current signal to provide a laser drive current signal to b) a laser transmitter having a laser diode, said laser diode for producing optical power over an optical transfer medium and a photodiode for producing a feedback signal in response to said optical power, the APC including c) a power stabilizing circuit including an error amplifier, a second potentiometer and a bias current drive transistor, the error amplifier having inputs for both the feedback signal and a voltage reference to generate an output control signal, the second potentiometer affecting said output control signal, and said bias current drive transistor being responsive to said output control signal for supplying bias current to the laser diode. According to another aspect of the invention, one or more of the potentiometers, error amplifier or voltage reference are included on said integrated circuit.

    摘要翻译: 自动功率控制(APC)由a)可变输出电压差分接收器/驱动器提供,该接收器响应于用于产生电压的数据信号,激光驱动器输出电压幅度由集成电路上的第一电位计控制, 交流电流信号,用于与直流电流信号相加以提供激光驱动电流信号以b)具有激光二极管的激光发射器,所述激光二极管用于在光学转移介质上产生光功率,以及用于产生响应的反馈信号的光电二极管 对于所述光功率,所述APC包括c)包括误差放大器,第二电位器和偏置电流驱动晶体管的功率稳定电路,所述误差放大器具有用于反馈信号和电压基准的输入以产生输出控制信号, 所述第二电位器影响所述输出控制信号,并且所述偏置电流驱动晶体管响应于所述输出 用于向激光二极管提供偏置电流的控制信号。 根据本发明的另一方面,所述集成电路中包括一个或多个电位计,误差放大器或参考电压。