Abstract: A TVS circuit having a first diode with a cathode coupled to a first terminal and an anode coupled to a first node. A second diode has an anode coupled to a second node and a cathode coupled to a third node. A third diode is coupled between the first node and second node. A fourth diode is coupled between the first node and third node. A fifth diode is coupled between the second node and a second terminal. A sixth diode is coupled between the second terminal and the third node. A seventh diode can be coupled between the second terminal and an intermediate node between the fifth diode and sixth diode. The first diode is disposed on a first semiconductor die, while the second diode is disposed on a second semiconductor die. Alternatively, the first diode and second diode are disposed on a single semiconductor die.

Abstract: The present application provides a surge protection circuit, a lightning protector and an electronic device. The surge protection circuit includes a first protection module, the first protection module comprises a first protection sub-module and a second protection sub-module electrically connected to the first protection sub-module. The first protection sub-module is used for surge protection during a first surge input, the second protection sub-module is used for surge protection during a second surge input protection, and the second surge strength is higher than the strength of the first surge. The surge protection circuit, lightning protection and electronic equipment could provide different levels of surge protection for different levels of surge and could greatly enhance the sensitivity of lightning protection.

Abstract: A high voltage protection system for saddle type vehicle detects the short circuiting of any wire. The high voltage protection system provides three different modules: a high voltage protection circuit, a fault collection circuit, and a fault detection circuit, working together to detect the short circuiting or voltage spike and disconnect the vehicle loads from the power supply to prevent an accident.

Abstract: A coated chamber component comprises a body and a protective ceramic coating deposited over a surface of the body, the protective ceramic coating being amorphous and comprising about 8-20% by weight yttrium, about 20-32% by weight aluminum, and about 60-70% by weight oxygen.

Abstract: The present disclosure provides a circuit including a coaxial cable interface, a data module, a power module, a power signal transmission branch, and a data signal transmission branch. The data module may receive or output a data signal. The power module may receive or output a power signal. The power signal transmission branch may be electrically coupled between the coaxial cable interface and the power module, and may include an inductor that allows the power signal to pass. The data signal transmission branch may be electrically coupled between the coaxial cable interface and the data module, and may include a capacitor that allows the data signal to pass and a first electrical surge protection circuit. The first electrical surge protection circuit may release a surge current on the data signal transmission branch.

Abstract: An electrostatic discharge (ESD) protection device includes: a first resistor coupled between a first input terminal of the ESD protection device and a first node of the ESD protection device; a second resistor coupled between the first node and a first output terminal of the ESD protection device; and a first ESD protection component coupled between the first node and a reference voltage terminal of the ESD protection device, where the reference voltage terminal is configured to be coupled to a reference voltage.

Abstract: A module for a fire-mitigating surge arrester includes: an inner arrester module including an electrically conductive assembly; a cartridge including a first end, a second end, a sidewall that extends between the first end and the second end, and an exhaust region in the sidewall, the sidewall surrounding the inner arrester module; a first electrical component in contact with a first end of the electrically conductive assembly and the first end of the cartridge; a second electrical component in contact with a second end of the electrically conductive assembly and the second end of the cartridge; and a reinforcement structure on the sidewall, the first electrical component, and the second electrical component.

Abstract: A method of operating a Fault Current Limiter Circuit Breaker including a plurality of FLCB modules connected in series, including at least a first module and a second module. Each module has a plurality of parallel component legs including a mechanical switch leg having a mechanical switch, a semiconductor switch leg having a semiconductor switch, and a Metal Oxide Varistor leg having a MOV. The method includes, when the FLCB is in an open configuration, obtaining an indication that the FLCB should be closed; in response to the obtained indication, closing the semiconductor switch of each of the modules; and, after the closing of the semiconductor switches and while the mechanical switch of the second module remains open, closing the mechanical switch of the first module.

Abstract: Provided is a DC current damper for a medium voltage or high voltage transformer. The DC current damper includes at least one pair of diodes. The two diodes in each pair of diodes are in an anti-parallel configuration. The at least one pair of diodes is configured to be connected between a neutral connection of a medium voltage or high voltage transformer and ground potential.

Abstract: A method of detecting pre-quench conditions in a superconducting magnet comprising an HTS field coil. The field coil comprises a plurality of turns comprising HTS material and metallic stabilizer; and conductive material connecting the turns such that current can be shared radially between turns via the conductive material. Strain is monitored for the HTS field coil and/or support structures of the HTS field coil. The monitored strain is compared to an expected strain during normal operation of the magnet. In response to the comparison, it is determined whether the field coil is in pre-quench conditions. A similar method is provided where the magnetic field of the HTS field coil is monitored to detect pre-quench conditions, instead of the strain.

Abstract: An electronic card comprising: a first card portion including lightning protection components, a first ground plane and a first ground zone; a second card portion comprising functional components, a second ground plane and a second ground zone; a third card portion, which separates and electrically isolates the first ground plane and the first ground zone from the second ground plane and from the second ground zone; the first ground zone and the second ground zone being unvarnished; the first ground zone and the second ground zone being arranged in order to be applied onto a housing element that is electrically conductive and that belongs to a housing in which the electronic card is integrated.

Abstract: A spark prevention cap is disclosed. The cap forms a sealed cavity around an end of a fastener protruding from a surface of a structure, for example, an aircraft structure. The cap has a cap body with an annular base terminating at a rim. The rim surrounds an opening into a central cavity for receiving the end of the fastener. The annular base has an external circumferential surface extending from the base rim, and a mating feature on the external circumferential surface configured to contact a sealant material applied externally to the cap.

Abstract: A base tape includes an accommodating section having a rectangular or substantially rectangular parallelepiped, and the base tape includes a surface layer including a carbon layer. The accommodating section includes a bottom surface portion, a side wall portion including a plurality of surfaces, and an opening portion. The side wall portion includes at at least one surface thereof an edge portion located between the bottom surface portion and the opening portion and an electrical discharge path portion inclined from the edge portion toward the opening portion. An electronic component array includes the base tape, an electronic component accommodated in the accommodating section of the base tape, and a cover tape that covers the accommodating section.

Abstract: A method for suppressing magnetizing inrush current of the transformer with flux linkage control includes connecting a small-capacity direct current/alternating current (DC/AC) converter with the secondary winding or auxiliary winding of transformer, detecting the primary side phase voltage before closing load, inducing the core flux linkage reference according to the relationship between the winding voltage and core flux linkage. The core flux linkage closed-loop PI control system is constructed to control the converter voltage in the synchronous coordinate, then the core flux linkage can track its reference with no static error, thus the sinusoidal flux linkage with 90-degree difference from the grid voltage can be pre-established in the core before no-load closing. By these methods, no matter when the main transformer closes, the core flux linkage is always in the steady state, and the magnetizing inrush current can be eliminated completely.

Abstract: A wireless anti-static device is disclosed, including an electronic sensing circuit that measures the polarity and electrostatic potential of the subject relative to its surroundings. Ion guns of positive and negative polarities are able to transfer an arbitrary quantity and polarity of charge from the subject by ejecting ionized air molecules into the surrounding environment. A control unit is programmed to trigger the appropriate ion gun when a corresponding charge is measured on the body, in order to continually maintain the net charge on the body below a desired threshold. The subject is thus effectively grounded relative to its environment without requiring physical tethers to ground.

Abstract: Circuits for protecting devices, such as gallium nitride (GaN) devices, and operating methods thereof are described. The circuits monitor a magnitude of the current in a device and reduce the magnitude of the current and/or shut down the device responsive to the magnitude of the current exceeding a threshold. These circuits safeguard devices from damaging operating conditions to prolong the operating life of the protected devices.

Abstract: A connector for use with a GFCI receptacle is provided. The connector includes a body, a latch configured to couple the body to the GFCI receptacle, a first blade supported by and extending from the body, a second blade supported by and extending from the body, wherein when the body is coupled to the GFCI receptacle, the first blade is received by a first mating terminal of the GFCI receptacle and the second blade is received by a second mating terminal of the GFCI receptacle to electrically couple the receptacle to a downstream device.

Abstract: An electrical relay (2) includes an electromagnetic drive system for providing bi-directional drive. The electrical relay (2) includes a first a coil (212) and a second coil (213). A current is supplied to the coils (212) and (213) in opposite directions. The two coils (212) and (213) can be used to accelerate the armature in either direction in relation to the two contacts. This can be used to drive the armature to either one of the contacts and to accelerate and decelerate the armature during a single transit. In the latter regard, the armature can be accelerated and decelerated to shorten the transit time, reduce bounce, reduce wear on the contacts, and allow for different contact material options.

Abstract: A surge protective device (SPD) circuit system for providing overvoltage protection to an electrical power circuit includes a PCB assembly, an SPD module, and an SPD monitoring system. The PCB assembly selectively mountable on the PCB includes a PCB and a remote signal (RS) PCB contact on the PCB. The SPD module includes an overvoltage clamping element and an RS spring contact including an RS contact portion. When the SPD module is mounted on the PCB and the electrical power circuit is connected to the PCB: the PCB electrically connects the SPD module to the circuit and the overvoltage clamping element provides overvoltage protection to the circuit; the RS contact portion engages the RS PCB contact; the RS spring contact is elastically deflected and persistently loads the RS contact portion against the RS PCB contact; and the RS spring contact is electrically connected to the SPD monitoring system via the RS PCB contact.

Abstract: Various aspects comprise controlling and/or euthanizing vermin or pests for preventing such vermin or pests from entering into a geographical area or into a building, wherein the device comprises at least one completely or partially uninsulated electrically conducting wire or conductor connected to an electrical current source, providing controlled electrical pulses to said conductor or wire in the form of pulses or pulse trains. The device may be used in a method for controlling the access of pests/vermin to a geographical location, building or property wherein the electrically conducting wire(s) lead(s) an electrical current with an amperage of not less than 0.0001 A. The device and method may be particularly suited for removing/controlling pests/vermin on land.