One-time electrically-activated switch
    61.
    发明授权
    One-time electrically-activated switch 失效
    一次性电动开关

    公开(公告)号:US4380749A

    公开(公告)日:1983-04-19

    申请号:US220343

    申请日:1980-12-29

    IPC分类号: H01C7/10 H01C13/00

    CPC分类号: H01C7/10

    摘要: A one-time electrically-activated switch is composed of a cured polymeric binder which contains a powdered conductive material in an amount sufficient to establish particle-to-particle contact throughout the binder and in which the material powder particles have a non-conductive oxide surface sufficient to resist the flow of electricity below a given threshold. When a sufficiently high voltage is applied to the switch, the break-down voltage of the oxide layer is exceeded and avalanche current is permitted to flow. As a result, the oxide layer on the conductive particles breaks down along the break-down path and forms an irreversible low-impedance connection.

    摘要翻译: 一次性电激活开关由固化的聚合物粘合剂组成,其包含粉末状导电材料,其量足以在整个粘合剂中建立颗粒与颗粒的接触,并且其中材料粉末颗粒具有非导电氧化物表面 足以抵抗低于给定阈值的电流。 当对开关施加足够高的电压时,超过氧化物层的击穿电压,允许雪崩电流流动。 结果,导电粒子上的氧化物层沿断裂线分解,形成不可逆的低阻抗连接。

    Capacitive touch entry apparatus having high degree of personal safety
    62.
    发明授权
    Capacitive touch entry apparatus having high degree of personal safety 失效
    具有高度人身安全性的电容式触摸输入装置

    公开(公告)号:US4290052A

    公开(公告)日:1981-09-15

    申请号:US88287

    申请日:1979-10-26

    摘要: A capacitive touch entry structure utilizes an array of at least one capacitive touch sensor fabricated upon a double-sided printed circuit board adhesively mounted upon a surface of a transparent insulative substrate. The substrate has sufficient thickness to safely insulate user personnel, contacting the substrate surface furthest from an electrode of the capacitive touch sensor, from electrical potentials present adjacent to the panel surface upon which the capacitive touch sensor is fastened. Touch sensor circuitry and interconnections may be advantageously fabricated directly upon the pair of conductive planes, sandwiching an insulative layer therebetween, to form the printed circuit portion of the structure. A conductive guard may also be disposed adjacent to the substrate to shield at least the lead portions of the touch sensors from capacitive effects.

    摘要翻译: 电容触摸输入结构利用在粘合地安装在透明绝缘基板的表面上的双面印刷电路板上制造的至少一个电容式触摸传感器的阵列。 基板具有足够的厚度,以安全地绝缘用户人员,使与电容式触摸传感器的电极最远的基板表面与电容触摸传感器紧固在其上的面板表面相邻的电位接触。 触摸传感器电路和互连可以有利地直接在一对导电平面上制造,在其间夹有绝缘层,以形成结构的印刷电路部分。 还可以将导电保护件设置成与衬底相邻以至少屏蔽触摸传感器的引线部分免受电容效应。

    Passive control network for remote control of load output level
    70.
    发明授权
    Passive control network for remote control of load output level 失效
    无源控制网络用于远程控制负载输出电平

    公开(公告)号:US4388566A

    公开(公告)日:1983-06-14

    申请号:US235191

    申请日:1981-02-17

    IPC分类号: H05B41/392 G05F1/00

    CPC分类号: H05B41/3921 Y10S315/04

    摘要: A passive control network for connection between a pair of load output level setting terminals, as on a ballast for a dimmable fluorescent lamp in a lighting system, to provide a required variable impedance, where the magnitude of the impedance establishes the load output level. The passive control network includes an isolation transformer for coupling a periodic waveform at the load input terminals to the variable impedance component, the magnitude of which impedance is reflected through the transformer to provide the load level-setting impedance.

    摘要翻译: 用于连接一对负载输出电平设置端子的无源控制网络,如在照明系统中用于可调光荧光灯的镇流器,以提供所需的可变阻抗,其中阻抗的大小建立负载输出电平。 无源控制网络包括隔离变压器,用于将负载输入端子处的周期性波形耦合到可变阻抗分量,其阻抗的大小通过变压器反射以提供负载电平设置阻抗。