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1. 发明申请

WO1994011936A1 SWITCHING ARRANGEMENT 审中-公开
标题翻译：切换安排
公开(公告)号：WO1994011936A1
公开(公告)日：1994-05-26
申请号：PCT/GB1993002249
申请日：1993-11-02
申请人： RAYCHEM LIMITED , PRYOR, Dennis, Malcolm , CHALLIS, Michael
发明人： RAYCHEM LIMITED
IPC分类号： H02H09/02
CPC分类号： H02H9/025 , H02H3/08
摘要： An arrangement for connection in an electrical circuit, which comprises: (1) a pair of FETs that are series connected in a line of the circuit with their sources connected together or with their drains connected together and whose states can be altered by means of a voltage acting on their gates; (2) a control connected to the gate of at least one of the FETs; the control being responsive to an overcurrent on the line thereby altering the states of at least one of the FETs.
摘要翻译：一种用于在电路中连接的装置，其包括：（1）一对FET，其串联连接在电路的一条线路中，其源极连接在一起或将其漏极连接在一起，并且其状态可以通过施加在门上的电压; （2）连接到至少一个FET的栅极的控制; 所述控制响应于所述线路上的过电流，从而改变所述FET中的至少一个的状态。

2. 发明申请

WO1992010878A1 CIRCUIT PROTECTION DEVICE 审中-公开
标题翻译：电路保护装置
公开(公告)号：WO1992010878A1
公开(公告)日：1992-06-25
申请号：PCT/GB1991002215
申请日：1991-12-12
申请人： RAYCHEM LIMITED , PRYOR, Dennis, Malcolm , CHALLIS, Michael
发明人： RAYCHEM LIMITED
IPC分类号： H03K17/08
CPC分类号： H02H3/087 , H02H3/07
摘要： A circuit protection arrangement that is intended to be series connected in a line of an electrical circuit comprises a transistor switch (1) that controls the circuit current and has a control input, and a control arrangement that controls the voltage of the control input of the switch. The control arrangement comprises a comparator circuit (3) that compares a fraction of the voltage across the switch (1) with a reference voltage, for example supplied by a Zener diode or bandgap diode, and opens the switch if the fraction is greater than the reference voltage. The comparator circuit is powered by the voltage drop in the line across the switch so that the arrangement can be formed as a two-terminal device that requires no external power source. The arrangement has the advantage that it exhibits a relatively small variation in performance with respect to temperature variations.
摘要翻译：旨在串联连接在电路线路中的电路保护装置包括控制电路电流并具有控制输入的晶体管开关（1），以及控制装置，其控制控制输入的电压开关。控制装置包括比较器电路（3），其将开关（1）两端的电压的一部分与参考电压（例如由齐纳二极管或带隙二极管提供）进行比较，并且如果分数大于参考电压。比较器电路由开关中的线路中的电压降供电，使得该布置可以形成为不需要外部电源的两端设备。该装置的优点在于，相对于温度变化，其表现出相对较小的性能变化。

3. 发明申请

WO1992007403A1 OVERCURRENT PROTECTION DEVICE 审中-公开
标题翻译：过电流保护装置
公开(公告)号：WO1992007403A1
公开(公告)日：1992-04-30
申请号：PCT/GB1991001761
申请日：1991-10-10
申请人： RAYCHEM LIMITED , PRYOR, Dennis , CHALLIS, Michael , ATKINS, Ian, Paul
发明人： RAYCHEM LIMITED
IPC分类号： H02H03/087
CPC分类号： H02H3/087 , H02H3/07
摘要： An overcurrent protection arrangement comprises a switching circuit that is intended to be series connected in a line of the circuit to be protected and which will allow normal circuit currents to pass but will open when subjected to an overcurrent. The arrangement includes a pulse generator which will generate pulses when the switching circuit has opened that reset, or attempt to reset, the switching circuit to its conducting state. Only a predetermined finite number of pulses or pulses for a predetermined finite time are generated, so that the circuit will quickly function again after having been subjected to a current transient but will not continually attempt to reset in the case of equipment faults.
摘要翻译：过电流保护装置包括一个开关电路，该开关电路旨在串联连接在被保护电路的一行中，并且允许正常的电路电流通过，但在经受过电流时将断开。该装置包括脉冲发生器，当开关电路打开该复位或尝试将开关电路复位到其导通状态时，脉冲发生器将产生脉冲。仅产生预定有限时间的预定有限数量的脉冲或脉冲，使得电路在已经经历电流瞬变之后将再次快速起作用，但在设备故障的情况下不会连续地尝试复位。

4. 发明申请

WO1994011948A1 COMMUNICATIONS CHANNEL TESTING ARRANGEMENT 审中-公开
标题翻译：通信通道测试安排
公开(公告)号：WO1994011948A1
公开(公告)日：1994-05-26
申请号：PCT/GB1993002312
申请日：1993-11-10
申请人： RAYCHEM LIMITED , PRYOR, Dennis, Malcolm , CHALLIS, Michael , VAN LEEUW, Luc
发明人： RAYCHEM LIMITED
IPC分类号： H03K17/687
CPC分类号： H04M3/301 , H03K17/6874 , H04M2201/14
摘要： A switching arrangement that can be connected in a communications channel that comprises a pair of lines between sets of terminal equipment, which comprises: (i) a series switch (1, 2) for connection in each of the lines; (ii) a shunt switch for connection between the lines; and (iii) a control circuit (5) that can actuate the series switches (1, 2) and can actuate the shunt switch on receipt of a signal sent along the channel: wherein the control circuit (5) can actuate the shunt switch and the series switches (1, 2) on receipt of one or more signals but the shunt switch will remain closed over a different time period than that during which the series switches remain open, in order to allow different tests to be performed on the channel, and wherein one or more of the switches comprises a solid state switch.
摘要翻译：一种可以连接在包括终端设备组之间的一对线路的通信信道中的交换装置，其包括：（i）用于在每条线路中连接的串联开关（1,2）（ii）用于线路之间连接的分流开关; 和（iii）可以致动串联开关（1,2）并且可以在接收到沿着通道发送的信号时致动并联开关的控制电路（5）：其中控制电路（5）可以致动分流开关和在接收到一个或多个信号但是分流开关的串联开关（1,2）将在与串联开关保持断开的不同时间段内保持闭合，以允许在通道上执行不同的测试，并且其中一个或多个开关包括固态开关。

5. 发明申请

WO1994001961A1 SWITCHING ARRANGEMENT FOR A COMMUNICATIONS CHANNEL 审中-公开
标题翻译：交换通道的切换方案
公开(公告)号：WO1994001961A1
公开(公告)日：1994-01-20
申请号：PCT/GB1993001376
申请日：1993-06-30
申请人： RAYCHEM LIMITED , PRYOR, Dennis, Malcolm , CHALLIS, Michael
发明人： RAYCHEM LIMITED
IPC分类号： H04M03/30
CPC分类号： H04M3/301 , H02H3/10 , H02H9/041 , H04M3/18
摘要： A switching arrangement that can be connected in a communications channel that comprises a pair of lines, between sets of terminal equipment, which comprises: (i) a d.c. voltage window detector circuit (3) that is connected between the lines and is responsive to the voltage between the lines; and (ii) one or more switching circuits (2, 4) connected in or between the lines that can be actuated by the window detector circuit (3) when, and only when, the voltage between the lines is within a predetermined band; so that the or each switching circuit (2, 4) can be remotely actuated by means of a d.c. signal on the line, the arrangement including a low pass filter associated with the or earch switching circuit having a cut off frequency that is sufficiently low to prevent the switching circuit(s) being actuated by a ringing signal on the channel.
摘要翻译：一种切换装置，其可以连接在通信信道中，该通信信道包括终端设备组之间的一对线路，其包括：（i）直流电压窗检测器电路（3），其连接在线路之间并响应于线路之间的电压; 以及（ii）连接在线路之中或之间的一个或多个切换电路（2,4），当线路之间的电压处于预定频带内时，只有当线路之间的电压在窗口检测器电路（3）内时，使得该开关电路（2,4）可以通过直流方式远程启动。信号，该装置包括与具有足够低的截止频率相关联的或离合器切换电路的低通滤波器，以防止开关电路由通道上的振铃信号致动。

6. 发明申请

WO1993001639A1 CIRCUIT PROTECTION ARRANGEMENT 审中-公开
标题翻译：电路保护装置
公开(公告)号：WO1993001639A1
公开(公告)日：1993-01-21
申请号：PCT/GB1992001237
申请日：1992-07-08
申请人： RAYCHEM LIMITED , PRYOR, Dennis, Malcolm , CHALLIS, Michael
发明人： RAYCHEM LIMITED
IPC分类号： H02H03/087
CPC分类号： H02H3/087 , H02H9/025 , H03K17/0822 , H03K17/785
摘要： An arrangement that is intended to be series connected in a line of an electrical circuit for protecting the circuit from an overcurrent, comprises a depletion mode FET (1) that switches the line current and a control device (4) that is connected across a resistance in the line, preferably the channel resistance of the FET (1), and will bias the gate of the FET (1) in response to the voltage difference across the resistance in order to switch the FET off when the arrangement is subjected to an overcurrent in the line. The arrangement has the advantage that since the FET (1) is normally on, there is no initial voltage drop across the arrangement before it becomes conductive so that the arrangement can be substantially linear.
摘要翻译：旨在串联连接在用于保护电路免于过电流的电路线路中的装置包括切换线路电流的耗尽型FET（1）和跨过电阻连接的控制装置（4）在线路中，优选地是FET（1）的沟道电阻，并且将响应于跨过电阻的电压差而偏压FET（1）的栅极，以便在该布置经受过电流时切断FET 在线该布置的优点在于，由于FET（1）通常导通，所以在布置变得导通之前，不存在初始的电压降，使得该布置可以是基本上线性的。

7. 发明申请

WO1995023455A1 SWITCHING DEVICE FOR TELECOMMUNICATIONS CHANNEL 审中-公开
标题翻译：电信通道切换装置
公开(公告)号：WO1995023455A1
公开(公告)日：1995-08-31
申请号：PCT/GB1995000382
申请日：1995-02-24
申请人： RAYCHEM LIMITED , CHALLIS, Michael
发明人： RAYCHEM LIMITED
IPC分类号： H03K17/785
CPC分类号： H04M3/301 , H03K17/6874 , H03K17/785
摘要： A switching device for a channel comprising a pair of lines, which comprises: (1) a voltage detector (8) that produces an output voltage in response to a voltage between the lines above a predetermined level; (2) a switch (9) that can change an impedance in one of the lines in response to an input voltage thereto; characterized in that: (a) the device additionally comprises a first storage device (2) that produces said input voltage, said input voltage being produced when the storage device reaches a charge V2, said storage device being initially at a voltage V1 that is less than V2 and after charging by the output voltage being at a voltage V3 that is greater than V2, said storage device discharging from V3 to V1 in the absence of the output voltage; and (b) the voltage detector (1) comprises a low-pass filter (R1, C1, D3, R2) such that an AC signal on the channel produces an output voltage that charges the first storage device to a charge below V2.
摘要翻译：一种用于包括一对线路的通道的开关装置，包括：（1）电压检测器（8），其响应于高于预定水平的线路之间的电压产生输出电压; （2）可以响应于其输入电压而改变一条线路中的阻抗的开关（9）; 其特征在于：（a）所述装置还包括产生所述输入电压的第一存储装置（2），当所述存储装置达到电荷V2时产生所述输入电压，所述存储装置最初处于较小的电压V1 并且在输出电压处于大于V2的电压V3的充电之后，所述存储装置在没有输出电压的情况下从V3放电到V1; 和（b）电压检测器（1）包括低通滤波器（R1，C1，D3，R2），使得通道上的AC信号产生将第一存储装置充电到低于V2的电荷的输出电压。

8. 发明申请

WO1994001960A1 REMOTELY ACTUATED SWITCH AND PROTECTION CIRCUIT 审中-公开
标题翻译：远程开关和保护电路
公开(公告)号：WO1994001960A1
公开(公告)日：1994-01-20
申请号：PCT/GB1993001371
申请日：1993-06-30
申请人： RAYCHEM LIMITED , PRYOR, Dennis, Malcolm , CHALLIS, Michael
发明人： RAYCHEM LIMITED
IPC分类号： H04M03/30
CPC分类号： H02H3/10 , H02H9/041 , H04M3/18 , H04M3/301
摘要： A switching arrangement that can be connected in a communications channel comprising a pair of lines, between sets of terminal equipment, which comprises: (i) a pair of series switching circuits (2), each of which can be series connected in one of the lines and will open when subjected to an overcurrent in its associated line; and/or (ii) one or more shunt switching circuits (4) connected between the lines, or between one or both the lines and earth, and will close when subjected to an overvoltage in its associated line; wherein the or each switching circuit can be remotely actuated by means of a test signal sent along the channel.
摘要翻译：一种切换装置，其可以连接在包括一组终端设备之间的一对线路的通信信道中，该通信信道包括：（i）一对串联切换电路（2），每个串联切换电路可串联连接在线路在其相关线路中经受过电流时将打开; 和/或（ii）连接在线路之间或一条或两条线路和地线之间的一个或多个分流开关电路（4），并且在其相关线路中经受过电压时将闭合; 其中可以通过沿着通道发送的测试信号来远程致动或切换开关电路。

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