Class / Patent application number | Description | Number of patent applications / Date published |
361119000 | In communication systems | 47 |
20080218927 | HIGH FREQUENCY FRONT-END MODULE AND DUPLEXER - A high frequency front-end module includes an antenna terminal ANT, a diplexer, high frequency switches, LC filters, and SAW duplexers. The SAW duplexer is defined by SAW filters and high-pass filters disposed at input sides thereof. The high-pass filters function as phase-matching elements having an anti-surge function against a surge coming from the antenna terminal ANT. | 09-11-2008 |
20080247113 | Protection patch panel - An access control system dissipates voltage transients while allowing access control equipment to operate normally. The access control system utilizes an isolation patch panel which is provided with circuitry to prevent voltage transients from damaging access control equipment, while also enabling the access control equipment to be wired with standard Ethernet cabling. | 10-09-2008 |
20080259517 | Network Protector - The invention provides a network protector ( | 10-23-2008 |
20090002910 | OVER VOLTAGE PROTECTION DEVICE WITH AN AIR-GAP - The present invention relates to an over voltage protection device with an air gap and a manufacturing method thereof. The over voltage protection device provides over voltage protection by using an air gap extending into a first substrate and a second substrate. The air gap is formed by a first trench of the first substrate and a second trench of the second substrate. | 01-01-2009 |
20090002911 | OVER VOLTAGE PROTECTION DEVICE WITH AN AIR-GAP - The present invention relates to an over voltage protection device with an air gap and a manufacturing method thereof. The over voltage protection device provides over voltage protection by using an air gap extending into a first substrate and a second substrate. The air gap is formed by a first trench of the first substrate and a second trench of the second substrate. | 01-01-2009 |
20090103226 | SURGE SUPPRESSION DEVICE HAVING ONE OR MORE RINGS - A surge suppression device may include a housing having a cavity, a center conductor positioned within the cavity, a spiral inductor having an inner curve coupled to the center conductor and an outer curve, a coil capture device connected to the outer curve of the spiral inductor, and a ring assembly having a first ring connected to the coil capture device, a second ring connected to the housing, and a voltage limiting device positioned between the first ring and the second ring. | 04-23-2009 |
20090128978 | Hybrid surge protector for a network interface device - A hybrid surge protector for a network interface device (NID) is disclosed. The hybrid surge protector includes a fail-safe spring connected to the ground electrode of a three-electrode gas tube. Tabs on the fail-safe spring are held away from the gas-tube end electrodes by a fusible element. The hybrid surge protector also includes metal-oxide varistor elements (“MOVs”) in contact with the gas-tube end electrodes and with the ground electrode via an MOV spring. This arrangement provides for two initial paths to ground-one path from the gas-tube end electrodes to the ground electrode through the gas tube, and another from the gas-tube end electrodes to the ground electrode through the MOVs and the MOV spring. The dominant path to ground starts as the MOV ground path but switches to the gas-tube path as the gas tube becomes activated. Another path to ground via the fail-safe spring is also available should the gas tube overheat. A surge protection module that includes the hybrid surge protector is also disclosed. | 05-21-2009 |
20090195956 | Low Bypass Fine Arrestor - A fine arrestor having a body with a bore there through, an inner conductor within the bore, an inner conductor capacitor within the bore coupled between a surge portion of the inner conductor and a protected portion of the inner conductor, and an inner conductor inductor within the bore coupled electrically in parallel with the inner conductor capacitor. A first shorting portion coupled between the surge portion of the inner conductor and the body and a second shorting portion coupled between the protected portion of the inner conductor and the body, for conducting a surge to ground. Also, other coaxial in-line assemblies may be formed incorporating the inner conductor cavity for isolation of enclosed electrical components. | 08-06-2009 |
20090244800 | Surge protection apparatus and methods - Improved over-voltage protection apparatus and associated methods useful in e.g., telecommunications applications. In one embodiment, the over voltage protection apparatus comprises a gas discharge tube, common mode inductor, coupled inductor, secondary over-voltage protection device, filter circuitry, coupled inductor and common mode inductor. In one embodiment the over voltage protection apparatus comprises a gas discharge tube, common mode inductor, coupled inductor, secondary over-voltage protection device and filter circuitry. The arrangement of said inductive components being optimally connected in such a manner as to provide a high impedance circuit for all surge events to the gas discharge tube, so as to protect the filtering circuitry. Methods for the manufacture of the filter protection apparatus so as to be maximally independent of component tolerances are also disclosed. | 10-01-2009 |
20090251840 | QUARTER WAVE STUB SURGE SUPPRESSOR WITH COUPLED PINS - A surge suppressor for protecting electronic equipment by suppressing damaging surges of low frequency signals in a radio frequency (RF) transmission line, while allowing RF signals of a desired frequency range to pass through the transmission line. The surge suppressor can comprise a housing, a center pin connected to a stub, and at least one interface pin conductively coupled to the cable and capacitively coupled to the center pin. The surge suppressor can have a signal pass through bandwidth approximately 10 times exceeding the bandwidth of traditional quarter wavelength stub (QWS) devices, a higher return loss, and higher surge attenuation level. The surge suppressor can be symmetrically insertable into a cable providing an RF communication line. | 10-08-2009 |
20090296300 | SCR circuit for protecting customer end of telephone line - A protection circuit employing a pair of SCR devices cross coupled between a telephone line tip conductor and ring conductor. The SCR devices are of the type providing internal semiconductor resistors between the gate and cathode terminals for sensing overcurrents in the telephone line conductors, and providing voltage sensitive semiconductor regions so that the SCR devices are sensitive to overvoltages on the telephone line conductors. When employed with a telephone line termination transformer, the internal resistor of one SCR device provides the series resistance, together with the transformer winding resistance, for reliably allowing the other SCR device to be triggered into conduction and remain in a latched condition in response to an overcurrent condition. | 12-03-2009 |
20090296301 | SCR circuit for protecting central office end of telephone line - A protection circuit employing a pair of SCR devices connected respectfully from telephone line tip conductor and ring conductors to ground. The SCR devices are of the type providing internal semiconductor resistors between the gate and cathode terminals for sensing overcurrents in the telephone line conductors, and providing voltage sensitive semiconductor regions so that the SCR devices are sensitive to overvoltages on the telephone line conductors. A pair of diodes are connected across the cathode-anode terminals of the SCR devices to provide overvoltage protection for positive polarity overvoltages on the telephone line. | 12-03-2009 |
20090296302 | SURGE PROTECTION SYSTEMS AND METHODS FOR OUTSIDE PLANT ETHERNET - The present disclosure generally pertains to surge protection systems that protect outside plant equipment from high-energy surges. In one exemplary embodiment, a protection system is used for protecting Ethernet equipment that is coupled to an outside Ethernet cable. The protection system provides protection and remains capable of coupling signal energy between an Ethernet cable and Ethernet equipment without significantly degrading Ethernet performance. However, the protection system, while allowing the desirable Ethernet signals to pass between the cable and the equipment, prevents the electrical voltages and currents of high-energy surges, such as surges from lightning or AC power faults, from damaging the Ethernet equipment. | 12-03-2009 |
20100053836 | TWO STAGE SURGE PROTECTION FOR SINGLE WIRE MULTI SWITCH TRANSCEIVER - An architecture for protecting circuitry used for signal communications between a frequency translation module ( | 03-04-2010 |
20100128406 | POWER SUPPLIES - The present invention provides a power supply ( | 05-27-2010 |
20100128407 | Capacitor Sharing Surge Protection Circuit - A capacitor sharing surge protection circuit for protecting multiple ports from harmful energy surges, such as electrostatic discharge (ESD) and cable discharge events (CDE), is provided. The protection circuit includes a plurality of diodes with respective cathodes and anodes. Each anode of the plurality of diodes is coupled to one of the plurality of ports. A bypass capacitor is coupled between the cathodes of the plurality of diodes and ground. In an embodiment, a bulk capacitor is further coupled between the cathodes of the plurality of diodes and ground. | 05-27-2010 |
20100265625 | COAXIAL BROADBAND SURGE PROTECTOR - A high voltage surge protection device having a characteristic impedance includes a center conductor defining an axis, an electrically conductive outer body concentrically disposed in surrounding relation to the inner conductor, and a dielectric layer disposed between the center conductor and the outer body. An electrically conductive surge protective element having a first value of effective impedance is disposed in electrical contact with the outer body and in spaced-apart relationship with the center conductor. The spaced-apart relationship forms a gap between the surge protective element and the center conductor. An insulative tuning element having a second value of effective impedance larger than the first value of effective impedance is coupled to the surge protective element in impedance-restorative relationship. The combination of the first value of effective impedance and the second value of effective impedance effectively equals the characteristic impedance of the high voltage surge protection device. | 10-21-2010 |
20100265626 | Signal Distribution and Surge Detection and Protection Module and Method - The present invention contemplates systems and methods for distributing RF and DC signals and detecting, logging and suppressing surge energy associated with surge events such as lightning and power line surges. The detection and logging is provided in order to determine possible causes of a failure and who might be responsible for the repair. The suppression is provided in order to protect electrical equipment such as split mount wireless radio systems from catastrophic failure due to surge events. | 10-21-2010 |
20100309599 | LIGHTNING ARRESTOR APPARATUS - A lightning arrestor apparatus is disclosed, which is comprised of a connecting piece, a first coaxial cable, a second coaxial cable and a grounding lead. Said connecting piece comprises a first connecting end and second connecting end on both sides of said connecting piece. Said first coaxial cable comprises the first terminal to connect said first connecting end for transmitting signal. Said second coaxial cable comprises the second terminal to connect said second connecting end for transmitting signal above-mentioned. Said grounding lead is installed under said connecting piece. The exteriors of said first terminal and said first connecting end have been further wrapped with a first protection coating. The exteriors of said second terminal and said second connecting end have been further wrapped with a second protection coating. Thereby the invention not only can reduce the transmission loss, but also can avoid inappropriate assembly and moisture intrusion. | 12-09-2010 |
20110075311 | SURGE PROTECTION DEVICE FOR ISOLATING PREMISE DEVICES - A surge protector comprises an internal circuitry configured to isolate a premise device from a surge input. In one embodiment, the internal circuitry can comprise a first signal path and a second signal path that is inductively coupled to the first signal path. Each of the first signal path and the second signal path can comprise windings, such as the windings that are found in an RF transformer. The internal circuitry can also comprise a blocking element, which is coupled to the second signal path so that the blocking element receives the surge input before the premise device. | 03-31-2011 |
20110075312 | SURGE PROTECTION DEVICE WITH IMPROVED RESPONSE TIME - A surge protection device with an internal circuitry that protects a premise device from a surge input that arises from a transient event, e.g., a lightning strike. The internal circuitry can comprise a surge path that includes windings, e.g., inductors, and in one embodiment the surge path comprises a first winding and a second winding that is coupled in series to the first winding. The internal circuitry can also comprise a blocking element that is positioned relative to the surge path so that the blocking element receives the surge input before the premise device, wherein the blocking element can be selected so as to isolate the premise device from the surge input. | 03-31-2011 |
20110102959 | Protection Patch Panel - An access control system dissipates voltage transients while allowing access control equipment to operate normally. The access control system utilizes an isolation patch panel which is provided with circuitry to prevent voltage transients from damaging access control equipment, while also enabling the access control equipment to be wired with standard Ethernet cabling. | 05-05-2011 |
20110128661 | SURGE PROTECTION SYSTEMS AND METHODS FOR ETHERNET COMMUNICATION EQUIPMENT IN OUTSIDE PLANT ENVIRONMENTS - The present disclosure generally pertains to surge protection systems that protect outside plant equipment from high-energy surges. In one exemplary embodiment, a protection system is used for protecting Ethernet equipment that is coupled to an outside Ethernet cable. The protection system provides protection and remains capable of coupling signal energy between an Ethernet cable and Ethernet equipment without significantly degrading Ethernet performance. However, the protection system, while allowing the desirable Ethernet signals to pass between the cable and the equipment, prevents the electrical voltages and currents of high-energy surges, such as surges from lightning or AC power faults, from damaging the Ethernet equipment. | 06-02-2011 |
20110141646 | SURGE PROTECTION CIRCUIT FOR PASSING DC AND RF SIGNALS - A surge protection circuit may include a tuned circuit board with traces designed to provide a surge protected and RF isolated DC path while propagating RF signals through the PCB dielectric with microstrip lines. The surge protection circuit utilizes high impedance RF decoupling devices such as quarterwave traces or inductors which isolate the multistage DC protection scheme which may include a gas discharge tube, serial surge impeding devices such as inductors and/or resistors, a decoupled air/spark gap device and a Zener diode junction. | 06-16-2011 |
20110235229 | ETHERNET SURGE PROTECTOR - An Ethernet surge protector can be mounted externally and/or internally to a wall of a building. The Ethernet surge protection device may include a housing, a threaded port, and a surge filter. The housing may define a space along an axis. The threaded port may be configured to be coupled to the housing, and it may have a locking surface that may be configured to prevent the housing from rotating about the axis upon engaging a mounting fixture. The surge filter may be disposed within the space, and it may be configured to filter out a surge component of an Ethernet signal received from an input cable. | 09-29-2011 |
20120008247 | SURGE SUPPRESSION DEVICE HAVING ONE OR MORE RINGS - A surge suppression device may include a housing having a cavity, a center conductor positioned within the cavity, a spiral inductor having an inner curve coupled to the center conductor and an outer curve, a coil capture device connected to the outer curve of the spiral inductor, and a ring assembly having a first ring connected to the coil capture device, a second ring connected to the housing, and a voltage limiting device positioned between the first ring and the second ring. | 01-12-2012 |
20120033339 | SURGE PROTECTION MAGAZINE FOR A DEVICE IN TELECOMMUNICATIONS AND DATA TECHNOLOGY - The invention relates to a surge protection magazine ( | 02-09-2012 |
20120106018 | SPARK GAP FOR HIGH-SPEED CABLE CONNECTORS - Circuits, methods, and apparatus that may provide low-capacitance protection from electrostatic discharges. One example protects a circuit in a cable connector that is connected to cable connector contacts. This example may include a number of spark gaps that may be used for electrostatic discharge protection. These spark gaps may be formed using traces a printed circuit board. Signal traces to be protected may be routed such that they pass in close proximity to a ground pad, line, plane, area, or connection. When excessive electrostatic energy builds up on the signal trace, the energy may spark across a gap from the signal trace to the ground pad. The gap and parts of the signal traces and ground may be uncovered such that the electrostatic discharge may dissipate through the air. | 05-03-2012 |
20120188678 | Coaxial In-Line Assembly - A fine arrestor having a body with a bore there through, an inner conductor within the bore, an inner conductor capacitor within the bore coupled between a surge portion of the inner conductor and a protected portion of the inner conductor, and an inner conductor inductor within the bore coupled electrically in parallel with the inner conductor capacitor. A first shorting portion coupled between the surge portion of the inner conductor and the body and a second shorting portion coupled between the protected portion of the inner conductor and the body, for conducting a surge to ground. Also, other coaxial in-line assemblies may be formed incorporating the inner conductor cavity for isolation of enclosed electrical components. | 07-26-2012 |
20120200979 | OVERVOLTAGE PROTECTION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS - 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. | 08-09-2012 |
20120262832 | RACKMOUNT I/O SIGNAL PROTECTOR ASSEMBLY FOR SURGE PROTECTION - A rackmount I/O signal protector assembly for protecting telecommunications related equipment and other associated sensitive electrical components from transient voltage and current surges includes a housing enclosure, a printed circuit board disposed within the housing enclosure, and a surge protector network mounted on the printed circuit board and interconnected between an unprotected side and a protected side. The surge protector network includes gigabit surge protector circuitry formed of a plurality of voltage suppressor devices, current-limiting devices, diodes, and clamping devices. Input side connector devices are coupled to the unprotected side for connecting to incoming telecommunication lines. Output side connector devices are coupled to the protected side for connecting to customers' electrical equipment to be protected. | 10-18-2012 |
20130070383 | SOLID STATE PROTECTOR MODULE - A protector module for use with a communication system, such as a telephone system having a tip line and a ring line, includes a base member and a plurality of electrically conductive pins mounted on the base member. A first electrical contact is fixedly mounted on the top surface of the base member and is in electrical communication with one of the tip line and the ring line. A movable second electrical contact is connected to a ground pin mounted on the base member and is situated in alignment with the first electrical contact. A solder pellet, which may melt in high current, long duration power surges, and a solid state device, are positioned between the first and second electrical contacts. | 03-21-2013 |
20130286527 | COMMUNICATION LINE ISOLATOR - An isolator | 10-31-2013 |
20130342949 | LIGHTNING PROTECTION RADIO REMOTE UNIT, DISTRIBUTED BASE STATION, LIGHTNING PROTECTION SYSTEM AND METHOD - Embodiments of the present invention disclose a lightning protection radio remote unit RRU, which includes a primary circuit, a secondary circuit, and a working circuit, where the primary circuit and the secondary circuit are configured to convert a power supply output by a power supply system into a working power supply to power the working circuit; the shield layer located on the RRU side of the shielded cable and the shield layer located on the power supply system side of the shielded cable are grounded respectively; a surge over-voltage withstand capability between the primary circuit and the earth is not less than a lightning over-voltage; a surge over-voltage withstand capability between each inner conductor in the shielded cable and the shield layer of the shielded cable is not less than the lightning over-voltage. | 12-26-2013 |
20140078635 | INTEGRATED SURGE PROTECTION FOR REMOTE RADIO HEAD POWER CABLE ASSEMBLIES - A surge protection apparatus for a power cable assembly is disclosed. The surge protection apparatus is located in-line with the power cable and may be integrated into or be a separate component from the power cable assembly and provide surge protection without the need to locate a surge protection device in a terminal. In this way, the terminal remains small and lightweight while the surge protection can be provided as needed. The apparatus may be used for power-only assemblies as well as hybrid power/fiber assemblies. | 03-20-2014 |
20140204496 | RACK-MOUNTABLE, TILTABLE SURGE PROTECTOR HOUSINGS FOR POWER SURGE PROTECTOR ACCESSIBILITY, AND RELATED ASSEMBLIES, METHODS, AND BASE STATION EQUIPMENT - Rack-mountable, tiltable surge protector housings for power surge protector accessibility are disclosed. Related assemblies, methods, and base station equipment are also disclosed. The surge protector housings may be installed in an equipment rack to support the surge protector housing for use. The surge protector housings support one or more surge protectors for receiving input power through the surge protector housing. The surge protector housing is configured to provide surge protected output power from the received input power. The surge protector housings include a front section having surge protectors supported therein. The front section can be tilted to provide convenient access to the surge protectors, such as during installation and replacement of surge protectors, and connecting power to and disconnecting power from the surge protectors. | 07-24-2014 |
20140204497 | RACK-MOUNTABLE SURGE PROTECTOR HOUSINGS HAVING TRANSLATABLE SURGE PROTECTOR TRAYS FOR POWER SURGE PROTECTOR ACCESSIBILITY, AND RELATED ASSEMBLIES, METHODS, AND BASE STATION EQUIPMENT - Rack-mountable, tiltable surge protector housings having translatable surge protector trays for surge protector accessibility are disclosed. Related assemblies, methods, and base station equipment are also disclosed. The surge protector housings may be installed in an equipment rack to support the surge protector housing for use. The surge protector housings support one or more surge protectors for receiving input power through the surge protector housing. The surge protector housing is configured to provide surge protected output power from the received input power. The surge protector housings include a surge protector tray having surge protectors supported therein that is translatable to be extendible from and retracted into the surge protector housing to provide convenient access to the surge protectors, such as during installation and replacement of surge protectors, and connecting power to and disconnecting power from the surge protectors. | 07-24-2014 |
20140211359 | SURGE PROTECTION CIRCUIT AND COMMUNICATION APPARATUS - A surge protection circuit includes a first terminal that is coupled to a transmission path, a second terminal that is coupled to a PHY circuit to transfer a signal on a physical layer, a clamping unit that is coupled so as to branch from a first line between the first terminal and the second terminal, the clamping unit clamping a voltage applied to the first terminal to a specific clamping voltage, and a first semiconductor switch that is arranged between the second terminal and a branching point at which the clamping unit branches from the first line, the first semiconductor switch having a rectification direction away from the second terminal toward the first terminal, the first semiconductor switch having a higher reverse breakdown voltage than a clamping voltage of the clamping unit. | 07-31-2014 |
20140347777 | SEMICONDUCTOR DEVICE - To prevent damage on an element even when a voltage high enough to break the element is input. A semiconductor device of the invention operates with a first voltage and includes a protection circuit which changes the value of the first voltage when the absolute value of the first voltage is higher than a reference value. The protection circuit includes: a control signal generation circuit generating a second voltage based on the first voltage and outputting the generated second voltage; and a voltage control circuit. The voltage control circuit includes a transistor which has a source, a drain, and a gate, and which is turned on or off depending on the second voltage input to the gate and thus controls whether the value of the first voltage is changed based on the amount of current flowing between the source and the drain. The transistor also includes an oxide semiconductor layer. | 11-27-2014 |
20140355163 | HIGH VOLTAGE DISCHARGE PROTECTION DEVICE AND RADIO FREQUENCY TRANSMISSION APPARATUS USING THE SAME - A high voltage discharge protective device for an RF device having a signal port, includes a blocking capacitor arranged at the signal port of the RF device, a circuit board for mounting the blocking capacitor, and a metal conductor grounded and partially bare. The blocking capacitor includes a main body and two leads connected to the main body and secured to the circuit board. The bottom portion of the main body is bare to form an exposed portion. The exposed portion is spaced apart from the circuit board to form an interval. The metal conductor is disposed within the interval and corresponds to the exposed portion of the blocking capacitor. When the passing voltage within the blocking capacitor reaches a predetermined value, the exposed portion of the blocking capacitor sparkly discharges to the metal conductor. An RF device is also provided. | 12-04-2014 |
20140355164 | THREE-POLE LIGHTNING ARRESTOR INTEGRATED INTO A RESIDENTIAL GATEWAY WITH LIGHTNING IMPACT DETECTOR - An electronic appliance powered by a power supply unit connected to a mains type electricity network, and for connection to a transmission line having two conductor elements and to a terminal in order to transfer data between the line and the terminal. The appliance has a front-end component connected to the line via an isolating transformer. Also, various additional components are connected to an electrical ground of the appliance. A discharge component is connected to the conductor elements of the line and becomes conductive in the event of a voltage surge due to a lightning strike. This eliminates the surge by establishing a flow of current from the line to electrical ground. A capacitive and/or resistive type divider component is interposed between the discharge component and electrical ground in order to co-operate with the power supply unit and/or one or more additional components to constitute a divider bridge. | 12-04-2014 |
20150029634 | NETWORK SIGNAL PROCESSING CIRCUIT - A network signal processing circuit includes at least one transmission line and at least two transient voltage suppressors. The transmission line has a first connection end and a second connection end. Each of the transient voltage suppressors is connected between a grounding point and a node on the transmission line. Two of the transient voltage suppressors are connected in parallel. A micro resistor is connected in series on the line where each of the transient voltage suppressors is located. By using the micro resistors connected in series on the lines where the two transient voltage suppressors connected in parallel are located, an overcurrent in a lightning signal can be diverted through the two transient voltage suppressors connected in parallel. | 01-29-2015 |
20150109710 | CABLE BREAKOUT ASSEMBLY - A telecommunications system uses a breakout device to connect a primary power cable to different secondary power cables that connect to different remote radio units (RRUs). For example, the breakout device may include a power distribution terminal that connects −48 VDC and return power lines in the primary power cable to different −48 VDC and return power lines in the secondary power cables. In another example, the breakout device may connect a hybrid cable that includes both power lines and fiber optic lines. A surge protection system may be located in the breakout device to protect the RRUs and other electrical device from power surges. Alternatively, the surge protection system may be located in jumper power cables connected between the breakout device and the RRUs. | 04-23-2015 |
20150146336 | SURGE PROTECTOR FOR A TRANSMISSION LINE CONNECTOR - An F connector coupled to a transmission line applies a radio frequency (RF) signal to an RF input of a filter of a set-top box via an impedance matching network that includes a first inductor and a second inductor that are coupled in series. A capacitor and a third inductor are coupled in parallel between a discharge tube and a junction terminal that is interposed between the series coupled inductors for protecting electronic components such as the filter from a voltage surge developed in the transmission line. | 05-28-2015 |
20160028225 | SURGE PROTECTIVE NETWORK SIGNAL PROCESSING CIRCUIT ASSEMBLY - A surge protective network signal processing circuit assembly includes a network chip, a network connector and a processing circuit including a plurality of two-wire channels electrically connected in parallel between the network chip and the network connector and a plurality of signal coupling capacitors respectively mounted in the two-wire channels and electrically connected in parallel and grounded for discharging instantaneous high voltage surges. | 01-28-2016 |
20160064924 | SYSTEM AND METHOD FOR ISOLATING AND PROTECTING A PoE (POWER OVER ETHERNET) DEVICE - A surge protection device includes an isolating transformer configured to conduct an Ethernet data signal on a wire pair and configured to provide voltage surge protection for Ethernet equipment coupled to the wire pair, and a power supply coupled to the isolating transformer and configured to conduct a DC voltage signal from the wire pair and configured to provide voltage surge protection for the Ethernet equipment coupled to the wire pair. | 03-03-2016 |
20160094018 | CIRCUIT ARRANGEMENT FOR SURGE PROTECTION IN DC SUPPLY CIRCUITS - The invention relates to a circuit arrangement for surge protection in DC supply circuits of electronic components or devices, in particular telecommunication devices such as transmitting and receiving antennas and/or mobile radio systems. The circuit consists of a coarse protection series circuit comprising spark gaps or gas discharge tubes between the input terminals and of capacitors connected in parallel to the spark gaps or gas discharge tubes. Furthermore, at least one fine protection element is provided between the output terminals, and a decoupling impedance is mounted between the coarse protection series circuit and the fine protection element. According to the invention, the capacitance values of the capacitors are multiple times greater than the capacitance values of the gas discharge tubes or spark gaps, the inductance of the decoupling impedance being chosen such that, in the event of a current rise, a sufficient voltage drop is produced to switch through the spark gaps or gas discharge tubes before the load limit of the fine protection element is reached. | 03-31-2016 |