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11.发明申请公开(公告)号：US20210033100A1
公开(公告)日：2021-02-04
申请号：US17046215
申请日：2019-04-09
发明人： Achim VOLMER , Martin SCHULZE
摘要： A blower filter device (3) is connectable to a voltage supply unit (2) and includes a blower unit (5), a filter mount (14), an internal energy storage unit (7), an energy interface (9), a current limitation device (13), a sensor array (16, 17, 18) and a control device (6). The current limitation device is activated upon disconnecting the energy interface from the voltage supply unit. The activated current limitation device limits the intensity of a current from the energy interface to the internal energy storage device. Upon the voltage supply unit being connected to the energy storage device and a predefined deactivating event is detected, the control device deactivates the current limitation device. The deactivating event is based on a charging voltage of the internal energy storage unit and/or on a time period that has elapsed since the connection. A process is provided for operating such a blower filter device.
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公开(公告)号：US10855075B2
公开(公告)日：2020-12-01
申请号：US16165595
申请日：2018-10-19
申请人： FANUC CORPORATION
发明人： Nozomu Hasegawa , Yoshikiyo Tanabe
IPC分类号： H02H9/06
摘要： A surge protective circuit is connected between a single-phase AC power source and an apparatus that operates with electric power supplied from the AC power source to suppress an overvoltage applied from the AC power source to the apparatus. The surge protective circuit includes: a first constant-voltage device and a first discharge device connected in series between a first ground terminal and a non-ground-side terminal of the AC power source; and a second constant-voltage device and a second discharge device connected in series between a second ground terminal and a ground-side terminal of the AC power source. A midpoint between the first constant-voltage device and the first discharge device and a midpoint between the second constant-voltage device and the second discharge device are connected.
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公开(公告)号：US10819543B2
公开(公告)日：2020-10-27
申请号：US15354149
申请日：2016-11-17
IPC分类号： H02H1/00 , H02H1/04 , H02H3/22 , H02H9/06 , H01C7/12 , H04L27/04 , H04B3/30 , H04B1/04 , H04B1/40 , H04B1/69
摘要： An isolator chip includes a transmitter circuit coupled to provide differential output signals to respective first terminals of a first and a second capacitor and a receiver circuit coupled to receive the differential output signals from respective second terminals of the first and second capacitors. The transmitter circuit includes a voltage-clamping circuit coupled to receive an input signal and to provide a clamped signal, an oscillator coupled to receive the clamped signal and to provide the differential output signals, and a common mode transient immunity (CMTI) circuit that couples respective first terminals of the first and second capacitors to a lower rail responsive to the clamped signal being low.
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公开(公告)号：US20200328578A1
公开(公告)日：2020-10-15
申请号：US16090875
申请日：2017-03-16
摘要： A surge protective device of the present invention includes an insulating tube 2, a pair of sealing electrodes 3 for closing openings on both ends of the insulating tube so as to seal a discharge control gas inside the tube, wherein the pair of sealing electrodes has a pair of convex electrode portions 5 projecting inwardly so as to face to each other, and at least one projecting part 2a projecting inwardly in a radial direction and extending in a circumferential direction is formed on the inner circumferential surface of the insulating tube.
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公开(公告)号：US20200036185A1
公开(公告)日：2020-01-30
申请号：US16046281
申请日：2018-07-26
摘要： A surge protective device (SPD) includes a first electrical terminal, a second electrical terminal, and an overvoltage protection circuit connected between the first and second electrical terminals. The overvoltage protection circuit includes a gas discharge tube and a current management circuit connected in series to the gas discharge tube. The current management circuit includes a varistor and a resistor that are connected in parallel between a first node of the current management circuit and a second node of the current management circuit.
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公开(公告)号：US20190074688A1
公开(公告)日：2019-03-07
申请号：US16124509
申请日：2018-09-07
申请人： WIDEX A/S
摘要： A head-worn device comprises a housing with an insulating housing wall and is housing a conducting element (24; 31) having at least one end embedded into the housing wall, and a component (22; 30) being arranged adjacent to the conducting element (24; 31). The component (22; 30) and the conducting element (24; 31) are being separated by a partitioning element (26; 28; 40) provided as an insulator. The partitioning element (26; 28; 40) is having a shape increasing the travelling distance for a spark between the conducting element (24; 31) and the component (22; 30) by at least 40%, and a thickness and a Dielectric Strength sufficient to resist 3 kV without breaking down.
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公开(公告)号：US10181717B2
公开(公告)日：2019-01-15
申请号：US14615803
申请日：2015-02-06
申请人： Raycap S.A.
发明人： Douglas Wayne Miller , Konstantinos Samaras , Kelly Rae Richards , Daniel Joseph Sullivan , Megaklis Marathias
IPC分类号： H01C7/12 , H02H1/00 , H01H1/04 , H02H3/22 , H02H9/06 , H02H9/04 , H01Q1/50 , H01T4/04 , H01T4/08 , H01T4/06
摘要： A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
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公开(公告)号：US10158222B2
公开(公告)日：2018-12-18
申请号：US15298934
申请日：2016-10-20
申请人： SANKOSHA CORPORATION
发明人： Kouji Idota , Shin Nakayama
IPC分类号： H02H3/00 , H02H3/22 , H01R13/04 , H01R13/10 , H01R31/06 , H01T4/06 , H02H9/04 , H02H9/06 , H01C7/12
摘要： A surge protective device (SPD) includes a jack and a plug detachably attached by insertion to the jack. Inside the plug, a protection circuit which protects equipment to be protected against intruding lightning surge, a degradation detecting unit which detects a degradation state of the protection circuit, a display unit which displays the detection result, or the like, are provided. When a plurality of SPDs are installed together, a juncture plug which detachably connects between juncture terminals within the adjacent SPDs is provided. The detection result of the degradation detecting unit within the plug is output to an outside through a third connection terminal within the plug, a first connection terminal and the juncture terminal within the jack and the juncture plug.
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公开(公告)号：US10074973B2
公开(公告)日：2018-09-11
申请号：US15508624
申请日：2015-10-01
发明人： Rainer Durth , Steffen Pfortner
CPC分类号： H02H9/042 , G01R31/1236 , G01R31/2827 , H01C7/12 , H02H1/0007 , H02H3/048 , H02H9/043 , H02H9/06
摘要： The object of the invention is an overvoltage protection apparatus with monitoring function having a parallel circuit of two branch circuits, wherein the first branch circuit has a first overvoltage protection device and a second overvoltage protection device that are connected in series, wherein the second branch circuit has a third device and a fourth device that are connected in series, wherein the first overvoltage device and the third device have a first shared voltage potential during operation, and wherein the second overvoltage device and the fourth device have a second shared voltage potential during operation, wherein a first measuring tap is provided between the first overvoltage protection device and the second overvoltage protection device and wherein a second measuring tap is provided between the third device and the fourth device, with a signal being derived from the voltage between the first measuring tap and the second measuring tap that provides state information in relation to the first overvoltage protection device and the second overvoltage protection device.
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公开(公告)号：US20180205221A1
公开(公告)日：2018-07-19
申请号：US15742745
申请日：2016-06-16
发明人： Thomas Böhm , Johannes Spies , Franz Schork , Ralph Brocke
摘要： The invention relates to a circuit assembly for electronically actuating triggerable surge arresters, such as spark gaps, multi-electrode gas arresters, or similar means. At least one power semiconductor is activated by a switching stage upon detecting a surge event, and the output side of the power semiconductor is connected to a trigger input of the surge arrester. According to the invention, the switching stage is designed as a control and analysis unit for detecting transient surge events and has first a pulse detection stage which allows a detection of pulses in a level-sensitive or increase rate-dependent manner and second a microcontroller or similar means for evaluating events. The output side of the microcontroller leads to the control input of the power semiconductor, and a quick-switching rectifier is provided between the output of the power semiconductor and the trigger input of the surge arrester.
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