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公开(公告)号：US4295058A
公开(公告)日：1981-10-13
申请号：US46568
申请日：1979-06-07
申请人： Robert W. Lade , Gordon B. Spellman , Stanley V. Jaskolski , Herman P. Schutten , James R. Jaeschke
发明人： Robert W. Lade , Gordon B. Spellman , Stanley V. Jaskolski , Herman P. Schutten , James R. Jaeschke
IPC分类号： H03K17/13 , H03K17/79 , H03K17/94 , H03K17/72 , H03K17/687
CPC分类号： H03K17/79 , H03K17/136 , H03K17/941 , Y10S136/293 , Y10T307/773
摘要： Various circuits and combinations of radiant energy responsive transducer means such as photovoltaic diodes connected to the gate of a depletion mode FET whose source and drain are connected to the gate and cathode of a thyristor, are disclosed to provide a semiconductor switch which is triggered into conduction solely by a small amount of radiant energy, without the need for a second triggering energy source, and which also affords immunity to unwanted dv/dt and temperature induced turn-on. Various modes of operation are disclosed, including the thyristor self-triggering into conduction, and/or being of the light-activated type itself and being directly triggered by impinging light, and/or being triggered by the light-responsive diode bias, and/or being triggered by a small bias supplied from a second set of photovoltaic diodes connected to the thyristor gate. Other combinations are disclosed providing zero-cross firing.
摘要翻译： 公开了各种电路和辐射能响应传感器装置的组合，例如连接到源极和漏极连接到晶闸管的栅极和阴极的耗尽型FET的栅极的光伏二极管，以提供半导体开关，其被触发成导通 仅仅通过少量的辐射能量，而不需要第二触发能量源，并且还提供对不需要的dv / dt和温度引起的接通的抗扰性。 公开了各种操作模式，包括晶闸管自触发为导通，和/或具有光激活型本身，并且通过入射光直接触发和/或由光响应二极管偏压触发，和/ 或者由连接到晶闸管门的第二组光伏二极管提供的小偏压触发。 公开了提供零交叉点火的其它组合。
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公开(公告)号：US06188552B1
公开(公告)日：2001-02-13
申请号：US09130568
申请日：1998-08-07
IPC分类号： H02H316
CPC分类号： H02H9/08 , E21B43/128 , E21B47/122
摘要： A normally ungrounded power system for a oil well is provided which includes a power transformer above ground and a pump motor below ground. There is provided a signal system which includes a below ground sensor system and an above ground signal conditioning and monitoring unit where the sensor system utilizes the main power lines for carrying the sensor signals. A connectable high resistance grounding scheme is provided to the aforementioned floating system, so that in the event of a arcing ground fault or similar occurrence the system may be immediately grounded, thus compensating for the effects of the arcing ground fault and providing personnel safety and electrical equipment protection. When the high resistance grounding system is not utilized the aforementioned signals from the sensors are easily carried by the power conductors.
摘要翻译： 提供一个用于油井的通常不接地的电力系统，其包括地面上的电力变压器和地下的泵电动机。 提供了一种信号系统，其包括地下传感器系统和地面信号调理和监测单元，其中传感器系统利用主电力线传送传感器信号。 对上述浮动系统提供可连接的高电阻接地方案，使得在发生电弧接地故障或类似发生的情况下，系统可以立即接地，从而补偿电弧接地故障的影响并提供人员安全和电气 设备保护。 当不使用高电阻接地系统时，来自传感器的上述信号容易被电力导体承载。
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公开(公告)号：US5294839A
公开(公告)日：1994-03-15
申请号：US905855
申请日：1992-06-29
申请人： James R. Jaeschke
发明人： James R. Jaeschke
CPC分类号： H01H9/06 , H02H9/001 , Y10T307/826 , Y10T307/839
摘要： A soft start tool handle trigger switch circuit (10) applies voltage from an AC source (12) to a portable tool electric motor (10). A current limiter (30) is connected in series between the AC source (12) and motor (14). A first sub-circuit (32) is connected in parallel with the motor (14) and includes actuator circuitry (34) tripping an actuator solenoid (36). A second sub-circuit (40) is connected in parallel with the current limiter (30) and has a pair of contacts (44, 46) actuated from an open condition to a closed condition upon movement of an actuator plunger (38). An NTC thermistor (48) is connected in series with the actuator circuitry and is physically proximate and heated by heat from the current limiter (30) to reduce the resistance of the NTC thermistor (48) and supply increased current to the actuator circuit (34) for earlier closing of the bypass sub-circuit (40), to stop the current-induced heating of the current limiter (30). Positive kick-off opening of the bypass contacts (44, 46) is provided upon release of the user finger engaged trigger (28) as the latter moves from its depressed to its extended position. Voltage sensitive (34) and time sensitive (70) circuitry is provided.
摘要翻译： 软启动工具手柄触发开关电路（10）将来自AC源（12）的电压施加到便携式工具电动机（10）。 电流限制器（30）串联连接在AC源（12）和马达（14）之间。 第一子电路（32）与马达（14）并联连接并且包括致动器电路（34）使致动器螺线管（36）跳闸。 第二子电路（40）与限流器（30）并联连接，并且具有在致动器柱塞（38）移动时从打开状态致动到关闭状态的一对触头（44,46）。 NTC热敏电阻（48）与致动器电路串联连接，并且通过来自限流器（30）的热物理接近并加热，以减小NTC热敏电阻（48）的电阻并且向致动器电路（34）提供增加的电流 ）用于较早关闭旁通子电路（40），以停止限流器（30）的电流感应加热。 当用户手指接合的触发器（28）从其凹陷部移动到其延伸位置时，释放旁路触头（44,46）的正向启动开口。 提供电压敏感（34）和时间敏感（70）电路。
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公开(公告)号：US4345292A
公开(公告)日：1982-08-17
申请号：US270463
申请日：1981-06-04
摘要： An A.C. overload current sensing, remote power controller of minimum size and weight and integral construction. Current rate sensing wound toroids are used that are small enough to fit around the line terminal studs without having to enlarge the prior insulator space available therein. The electronic overload current detecting and tripping control circuit is replaced by a pair of modules, detector and control modules, having improved performance and a shape and size such that they fit within the relay housing alongside its operating magnet. The detector module has integrator means for converting current rate of change signals into current magnitude indicative signals thereby enabling use therewith of rate sensing wound toroids of about one-tenth the size of equivalent current transformer wound toroids. It fully meets the calibrated step function overload trip time requirements while also providing protection for unusual overload conditions such as varying overloads including pulse accumulation effects or repetitive reset, and simulates the response of a thermal element to prevent excess heating of the wire or load that it is protecting under any overload conditions. Moreover, one version of the control module incorporates a single standard CMOS IC logic element that provides a digital solution to the combinations of control conditions requirements while at the same time reducing the number of conventionally-required cutthroat contacts from two to one and isolating the control input from the relay power circuit. Another version provides reset lockout.
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公开(公告)号：US4305259A
公开(公告)日：1981-12-15
申请号：US136846
申请日：1980-04-03
申请人： James R. Jaeschke
发明人： James R. Jaeschke
IPC分类号： F25D21/02
CPC分类号： F25D21/02
摘要： A frost sensor circuit which employs a thermistor (10, 20) to sense the amount of frost present on the cooling coils of a refrigerator, air conditioner, or the like, and to inhibit defrosting that would otherwise occur at regular intervals, in those cases where the frost present is not enough to justify a defrost function thereby to limit defrost heating to those cycles requiring it, thus saving electrical energy. This is done by mounting the thermistor at or on the coils to collect the same amount of frost as the coils and to have the defrost cycle control (11) energize the same for a timed interval, melting the frost thereon and thereby determining the amount of frost build-up.
摘要翻译： 一种使用热敏电阻（10,20）感测冰箱，空调器等的冷却盘管上存在的霜的量并且抑制否则将以规则间隔发生的除霜的霜传感器电路，在这些情况下 其中霜冻不足以证明除霜功能，从而将除霜加热限制到需要它的循环，从而节省电能。 这是通过将热敏电阻安装在线圈上或线圈上以收集与线圈相同量的霜，并且使除霜周期控制（11）以定时间隔通电，使其上的霜熔化，从而确定 霜冻积聚。
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公开(公告)号：US4223217A
公开(公告)日：1980-09-16
申请号：US796400
申请日：1977-05-12
CPC分类号： G02B6/353 , G02B5/005 , G02B6/3552
摘要： A preassembled self-contained fiber optic module is disclosed which may be inserted in standard switch enclosures to enable a remote electrical switching function to be performed by means of optical switching within the switch enclosure. A single module mounts facing ends of two fiber optic cables in spaced substantially colinear alignment and also forms a narrow elongated guiding channel perpendicular to the colinear axis of the cables and intersecting the gap therebetween for guiding an operator-driven opaque shutter which is movable into the gap to block the optical path between the facing ends of the cables. Transducer means are provided at the remote ends of the fiber optic cables to supply an electrical signal in response to optical transmission. A fiber optic limit switch and a fiber optic pushbutton switch are specifically disclosed.
摘要翻译： 公开了一种预组装的独立光纤模块，其可以插入到标准开关外壳中，以便能够通过开关外壳内的光学切换来执行远程电气切换功能。 单个模块将两个光纤电缆的面向端部以间隔开的基本上共线对准的方式安装，并且还形成垂直于电缆的共线轴线的窄的细长引导通道，并与其间的间隙相交，以引导操作者驱动的不透明快门，其可移动到 间隙以阻挡电缆的相对端之间的光路。 传感器装置设置在光纤电缆的远端以响应光传输提供电信号。 具体公开了光纤限位开关和光纤按钮开关。
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