146results about "Transient suppressor details" patented technology

The proposal relates to a device for protecting an electrical and / or electronic component, arranged on a carrier substrate, from electrostatic discharges, an overvoltage occurring in the case of discharge at a carrier-substrate contact element connected to the component being diverted to a ground connection, bypassing the component. It is proposed that the protective device include a first electroconductive structure conductively connected to the jeopardized contact element, and a second electroconductive structure arranged adjacent to the first structure on the carrier substrate and conductively connected to the ground connection. Mutually facing sections of the electroconductive structures are set apart spatially from one another by a defined gap in such a way that an overvoltage transmitted to the contact element is transferred by a spark discharge in the gap from the section of the first electroconductive structure to the section of the second electroconductive structure, and is diverted to the ground connection.

A predetermined single electrode shielding set for groupings of complementary electrodes that are operable to shield and that together are selectively formed or amalgamated into a predetermined sequential combination of commonly configured energy pathways operable for shielding various paired complementary electrodes and other predetermined elements that result in an electrode architecture practicable to provide multiple energy conditioning functions.

A predetermined single electrode shielding set for groupings of complementary electrodes that are operable to shield and that together are selectively formed or amalgamated into a predetermined sequential combination of commonly configured energy pathways operable for shielding various paired complementary electrodes and other predetermined elements that result in an electrode architecture practicable to provide multiple energy conditioning functions.

Disclosed herein is a printed circuit board comprising a ground layer and a signal layer in which the characteristic impedance of a specific source line is made to be not less than three times as large as the impedance at an upper limit frequency at which the electromagnetic wave radiation of a specific capacitor may occur. In this printed circuit board, variation of a power source voltage and unnecessary electromagnetic wave radiation can be suppressed.

A filter package includes a pair of spaced circuit boards; a magnetic core between the circuit boards; a plurality of windings on the core extending to at least one of the boards; and a plurality of conductor bars mechanically fastening and electrically interconnecting the circuit boards.

A potted electrical circuit is enclosed within a housing and has a first and second fiberglass layer that is laid upon a top surface of the potted electrical circuit. A lid of the housing seals the electrical circuit there within and an opening formed in a side wall allows circuitry wiring to extend there from out. The first fiberglass layer is a woven layer while the second fiberglass layer is a padding-like layer. Circuitry wiring pushes through the woven first fiberglass layer before extending out through the opening in the housing. The first fiberglass layer is tucked in and around the electrical circuit and adheres to the inside of the housing by attaching to the potting material while it hardens. In a preferred embodiment, the electrical circuit in combination with the insulation material is used within a transient voltage surge suppression device.

A device for hardening an Ethernet switch is disclosed. The device provides cooling for the switch, and, suppresses electrical transients and electromagnetic interference, which could affect the power supply, and data transmission of the Ethernet switch. Using this device, the Ethernet switch can be used in harsh industrial environments, such as those present in power utility substations. The Ethernet switch may comprise a dual stage isolated power supply. The dual stage isolated power supply has a first DC to DC converter for converting received power from the received voltage to an intermediate voltage. The intermediate voltage is then further converted to a voltage which can be used by the Ethernet switch. Each of the DC to DC converters also provide galvanic isolation and also transient suppression and electromagnetic interference filtering to decrease adverse electrical effects which may be inherent in the power received from an external source. The first and second DC to DC converter provides a first level of galvanic isolation which is greater than the second level of galvanic isolation provided by the second DC to DC converter. The power supply circuit can be used in an Ethernet switch as well as any other intelligent electronic device.

A plug includes an element that is electrically connected to a ground element in a receptacle in a set up configuration and an electrical connection that is attached to an element to be grounded whereby an element, person, or device, or the like, can be securely grounded using the ground circuit in a receptacle. Grounding is via a suitable signal circuit in one form of the invention.

A device providing an enclosure for electronic components of an RF filter, trap, or the like for use in a CATV system. The device includes a hollow, cylindrical body portion with male and female headers at opposite ends with mutually engaged portions of the body and headers serving to rotationally lock the body and headers to one another. The mutually engaged portions comprise a pair of notches in each end of the body member and a pair of tabs on each of the headers which extend into the corresponding notches, the tabs and notches having substantially equal widths to prevent rotation of the headers relative to the body upon application of a torque, such as occurs when the devices are installed and threaded to an adjoining connector. In addition to the single body version, the invention is disclosed in a six-pole version having three body members arranged in successive, coaxial relation and rotationally locked to the headers at each end and to adjoining body members. In both versions, the body member(s) and header(s) are maintained in longitudinally assembled relation without the conventional induction soldering operation. In the first embodiment the body and headers are enclosed in a closely fitting sleeve having opposite ends which are formed over the peripheries of the headers. In the second embodiment, longitudinally adjoining members are joined by interference fit with a locking ring and groove to lock the inner body to the header.

A potted electrical circuit is enclosed within a housing and has a first and second fiberglass layer that is laid upon a top surface of the potted electrical circuit. A lid of the housing seals the electrical circuit there within and an opening formed in a side wall allows circuitry wiring to extend there from out. The first fiberglass layer is a woven layer while the second fiberglass layer is a padding-like layer. Circuitry wiring pushes through the woven first fiberglass layer before extending out through the opening in the housing. The first fiberglass layer is tucked in and around the electrical circuit and adheres to the inside of the housing by attaching to the potting material while it hardens. In a preferred embodiment, the electrical circuit in combination with the insulation material is used within a transient voltage surge suppression device.

A wire harness includes first to third electric wires; a braid shield that covers the first to third electric wires; a tube-shaped electromagnetic wave absorber having a through hole that allows the first to third electric wires to be inserted therethrough, the electromagnetic wave absorber absorbing electromagnetic waves emitted from the first to third electric wires; and a resin tape and fasteners that fix the positions of the electromagnetic wave absorber and the braid shield relative to each other. The electromagnetic wave absorber is movable in an axial direction of the first to third electric wires relative to the first to third electric wires as a result of extension and contraction of the braid shield in the axial direction.

A filter structure and the method of fabrication are disclosed. The filter comprises an insertion seat including a box body at one side thereof and a plurality of electronic modules within the box body and the external side of the box body mounted to a ground terminal, and the electronic modules and the ground terminal formed an electronic loop of the filter, and the positive and negative terminal of the electronic loop being soldered to a positive conductive wire and a negative conductive wire; and a metallic housing having an opened cavity at one side for the mounting of the insertion seat and the bottom portion of the cavity being a terminal hole and a conductive wire hole, and the conductive wire hole being extended to form an isolation mount which functions as electromagnetic wave isolation, and the external of the isolation mount being mounted with an insulated rubber mount and one end of the positive conductive wire and the negative wire from the conductive wire hole via the isolation mount to the exterior, and the ground terminal passed through the terminal hole to the exterior.

A data surge protection module which can be added to data and control networks not having such protection. The use of quick connect / disconnect connectors allows the rapid installation or replacement of such modules. a built in ground plate and a braided low impedance conductor offer alternative grounding methods for the module. The module employs two or more diode steering bridges and uses a diode as the surge suppression element.

A filter for CATV applications includes a housing and two interface caps, each with an annular groove in a header portion thereof. A circuit board having a grounding bus along an edge of the board is disposed inside the housing. A split ring grounding clamp is disposed inside the housing such that a plurality of split rings are adjacent the grounding bus. The interface caps are press fitted into the ends of the housing, forcing the plurality of split rings into uniform contact with the grounding bus. The ends of the housing are then crimp-rolled such that a ridge is formed in the housing where the grooves in the headers are located in the interface caps, thereby sealing the ends of the housing to the interface caps.

An electronic filter comprises a housing having input and output ends. The housing has a body and a connector. The connector is located at the input end of the housing. A circuit board is located within the body. A collet assembly is located within the connector to receive electrical signals and conduct them to the circuit board. The collet assembly includes an insulator, a conductor, and an elastomeric sealing member. The insulator is located within the connector. The insulator contains a generally cylindrical opening through its length. The conductor extends through the opening of the insulator. The conductor has an input end adjacent the input end of the housing and an output end adjacent the circuit board. The conductor has a hollow interior at its input end. The sealing member surrounds the insulator in compressed engagement with the insulator and the surrounding connector.

A high-density pass-through filter apparatus slips over the terminal blade of a standard pass-through electrical connector within an opening in the bulkhead of an electronic module to which the connector is fastened. The filter apparatus retains a large number of axially oriented and axially terminated capacitive filter components which are electrically coupled at one end to the connector terminal and at the other end to a peripheral ring that resiliently engages the periphery of the bulkhead opening.

An interconnect system between an integrated circuit device and a printed circuit board may include a filter portion coupled to conductors on a power distribution bus. The filter portion may reduce radiated emissions produced during operation of the integrated circuit. The interconnect may include dispersive elements. The dispersive elements may be less electrically conductive of current in a higher frequency range than in a lower frequency range. In some embodiments, the second level interconnect may include a socket having dispersive contacts. The contacts may be coupled to core power conductors on the power distribution bus.

A filter design configured to operate in the medium voltage range of 1000 to 5000 volts, provides protection against Electromagnetic Pulse / High Altitude Electromagnetic Pulse (EMP / HEMP) intentional electromagnetic interference pulses. The filter utilizes no oil filled components to preclude the catastrophic failures (explosions) during operation. Many of the components incorporated in the present design are suited to absorbing harmonics without failing. In addition to mitigating E1 and E2 pulses, the filter is resistant to line harmonics which have proved to cause filter failure in past designs. The filter provides EMP / HEMP conducted pulse protection for downstream electronics inside hardened shelters for medium and high voltage applications.

An assembly for housing electronic components for use in a CATV system. The assembly includes a hollow body member having a central axis and opposite ends, at least one header adjoining one end of the body member in coaxial relation. The body member includes a notch in one end and the header includes a tab configured to extend into the notch to rotationally lock the body member to the header. The assembly may also include a plurality of hollow body members and a pair of headers each having a central axis. The body members and headers are positioned in an axially aligned array with the headers at opposite ends. The assembly includes cooperative structure rotationally locking each of the body members and headers to the adjacent body member and header. The assembly may further include a sleeve covering at least portions of the body member and headers.

A device for hardening an Ethernet switch is disclosed. The device provides cooling for the switch, and, suppresses electrical transients and electromagnetic interference, which could affect the power supply, and data transmission of the Ethernet switch. Using this device, the Ethernet switch can be used in harsh industrial environments, such as those present in power utility substations.

In described embodiments, a printed circuit board assembly capable of discharging electro-static discharge (ESD) surges includes an isolation trench track provided in the printed circuit board in close proximity to the peripheral edges between the peripheral edges and the mounting area, and a discharge path formed of conductive material to ground provided between the isolation trench track and the peripheral edges. The discharge path includes the board mounting screws and connects to a power connector ground of the printed circuit board.

Grounding elements are used to properly ground floor coverings and other elements whereby a floor covering, such as a carpet, need not be removed and reinstalled to correct a grounding problem. Properly grounded floor coverings and other devices reduces the effects of electrostatic discharge (ESD) and eliminates disruptive leak paths. One form of the invention has an element that is touched by a user layered on top of an ESD grounded work surface.

An exemplary over-voltage protection device used in an electronic device includes a housing capable of being grounded, a circuit board, a connecting member detachably attached to the circuit board and the housing to electrically connect the circuit board with the housing, and a protection member connected to the circuit board and circuitry of the electronic device. When an over-voltage is generated in the electronic device, the over-voltage is transmitted to the ground through the protection member, the circuit board, the connecting member, and the housing.

In an illustrative embodiment, a cable clamp (100) comprises a first half member (110) and a second half member (115). Each of the half members comprises first and second mating surfaces (120, 125), and interior and exterior surfaces (130, 135). The half members are connected at the first mating surfaces thereof such that the half members form a passageway (140) for receiving a cable (145) therethrough. The clamp further comprises at least one actuator (150) disposed on one of the exterior surfaces, at least one indicator (155) disposed on one of the exterior surfaces, and a transceiver (160) configured to transmit data regarding the at least one actuator and to receive data regarding the indicator via a wireless link.

A device and a method of reducing electromagnetic interference resulting from a harmonic wave produced by a signal transmitted through a harness. The method includes winding a conductive wire at least once around the harness, and grounding at least one end of the conductive wire. Accordingly, the electromagnetic interference reducing method is capable of reducing electromagnetic interference without any side effects by using a low cost and a simple ground line.

A filter for CATV applications includes a housing and two interface caps, each with an annular groove in a header portion thereof. A circuit board having a grounding bus along an edge of the board is disposed inside the housing. A split ring grounding clamp is disposed inside the housing such that a plurality of split rings are adjacent the grounding bus. The interface caps are press fitted into the ends of the housing, forcing the plurality of split rings into uniform contact with the grounding bus. The ends of the housing are then crimp-rolled such that a ridge is formed in the housing where the grooves in the headers are located in the interface caps, thereby sealing the ends of the housing to the interface caps.

An electronic device includes a housing for accommodating a carrier substrate. An electronic module and a conductor structure for making electrical connection with the electronic module are fitted on the carrier substrate. A filter device for improving the electromagnetic sensitivity is arranged in the housing. The filter device is formed by an electrical and / or capacitive connection of a first conductor surface of the conductor structure to an external first potential and by an electrical and / or capacitive connection of a second conductor surface of the conductor structure to a second electrical potential, the first conductor surface and the second conductor surface being arranged approximately opposite one another.