Abstract: Detonation control modules and detonation control circuits are provided herein. A trigger input signal can cause a detonation control module to trigger a detonator. A detonation control module can include a timing circuit, a light-producing diode such as a laser diode, an optically triggered diode, and a high-voltage capacitor. The trigger input signal can activate the timing circuit. The timing circuit can control activation of the light-producing diode. Activation of the light-producing diode illuminates and activates the optically triggered diode. The optically triggered diode can be coupled between the high-voltage capacitor and the detonator. Activation of the optically triggered diode causes a power pulse to be released from the high-voltage capacitor that triggers the detonator.

Abstract: A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

Abstract: A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

Abstract: Techniques pertaining to battery protection circuits are disclosed. According to one embodiment of the present invention, the battery protection circuit includes a power button, a power detection circuit, a first switch coupled between the power button and the power detection circuit, the power detection circuit configured to output a power-off signal when either the first switch or the power button is in a switch-off state, a low-voltage detection circuit coupled with a battery and configured to detect whether a voltage of the battery is lower than a low-voltage detection threshold or not, and switch off the first switch to cut off an electric leakage path of the battery when the voltage of the battery is determined to be lower than the low-voltage detection threshold, and a power management circuit coupled with the power detection circuit and configured to cut off an electric discharge path of the battery to prohibit the battery from discharging when receiving the power-off signal.

Abstract: A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

Abstract: A device includes a transistor configured for depletion-mode operation, the transistor having a gate terminal and a drain terminal, and an electrostatic discharge (ESD) protection circuit coupling the gate terminal and the drain terminal. The ESD protection circuit includes a discharge path circuit and a trigger circuit coupled to, and configured to control, the discharge path circuit. The discharge path circuit and the trigger circuit are disposed between the gate terminal and the drain terminal.

Abstract: In one example, a ground fault circuit interrupter is provided. It may include a current imbalance detection circuit configured to provide a leakage signal and a main processing circuit including a processor. The leakage signal may correspond to a current imbalance between a supply path and a return path. The processor may be configured to receive the leakage signal, analyze a time pattern of the leakage signal, determine whether a ground fault exists based on analysis of the time pattern, and generate a first trigger signal if the ground fault is determined to exist. The ground fault circuit interrupter may further include a back-EMF detection circuit configured to provide a back-EMF detection signal. Methods for detecting and responding to a ground fault are also provided.

Abstract: An enhanced parallel protection circuit is provided. A system using separate battery packs in a parallel configuration is arranged with multiple protection circuit modules (PCMs). The PCMs are configured to detect fault conditions, such as over voltage, under voltage, excess current, etc. The PCMs can be configured to control associated switches and/or other components. When a fault condition is detected by an individual PCM, the individual PCM transitions to a fault state, and the PCM triggers an output causing one or more actions, e.g., causing a device to shut down or isolate one or more components. In addition, by the use of the techniques disclosed herein, the individual PCM can generate a control signal that causes other PCMs to transition to a fault state. The individual PCM can also receive a control signal from another PCM to cause the individual PCM to transition to a fault state.

Abstract: The invention relates to a communication module (100) comprising a communication circuit (101), a communication interface for transferring data to an electric data line (103); and to an overvoltage protection module (105) for protecting the communication circuit (101) from an overvoltage on the electric data line (103) which is integrated in an insertable manner into the communication module (100).

Abstract: A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

Abstract: A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

Abstract: A thermal protector including a body integrally connected to a magnet wire terminating feature.

Abstract: The present invention is to provide a member for reducing charge for transportation that further decreases positive charge of charged transportation to contribute to improvement in driving stability and acceleration performance. The member for reducing charge for transportation 1 of the present invention is a laminated structure in which a metal layer 11 and a radiation generating layer 12 are laminated. The metal layer 11 contains a metal with a redox potential of 0 V or less or an alloy of a metal with a redox potential of 0 V or less, and the radiation generating layer 12 contains a mixture of a natural ore containing a radioactive substance with a radiolucent resin. The dose of radiation generated from the radiation generating layer 12 is from 0.02 ?Sv/h or more to 0.2 ?Sv/h or less. The member 1 is suitably used for the transportation in which the body is positively charged by static electricity caused by travelling, cruising, etc.

Abstract: In an example, a device for controlling an electronic switch between a power supply and a load includes a first device pin configured to be in communication with the electronic switch, a sensing circuit configured to be connected to an input voltage and to measure a current to the load, a control circuit configured to be in communication with the sensing circuit and the electronic switch, the control circuit configured to use a current limit signal to control operation of the electronic switch, and a current limit circuit configured to be in communication with the control circuit, the current limit circuit configured to generate the current limit signal representing a current limit and automatically adjust the current limit signal in response to a change in at least one of the input voltage and an output voltage.

Abstract: The present invention provides a phase control device applied to a three-phase circuit including a three-phase transformer and a three-phase breaker that turns on/off the transformer. The device suppresses an excitation rush current generated in the transformer. The device includes a controller that closes any one phase of the breaker as a closing first phase and subsequently closes the other phases, a determiner that determines the closing first phase based on residual magnetic fluxes of the respective phases in the transformer, a determiner that determines, based on a pre-arc characteristic and a closing time variation characteristic of the breaker, target closing phases and target closing times of the closing first phase and the other phases, a calculator that calculates a closing time of each phase of the breaker, and an operation time table that stores, as a median of the variation characteristic represented by a normal distribution, the calculated time.

Abstract: A system of surge suppressor units is connected at multiple locations on a power transmission and distribution grid to provide grid level protection against various disturbances before such disturbances can reach or affect facility level equipment. The surge suppressor units effectively prevent major voltage and current spikes from impacting the grid. In addition, the surge suppressor units include various integration features which provide diagnostic and remote reporting capabilities required by most utility operations. As such, the surge suppressor units protect grid level components from major events such as natural geomagnetic disturbances (solar flares), extreme electrical events (lightning) and human-generated events (EMPs) and cascading failures on the power grid.

Abstract: A load control device may control power delivered to an electrical load from an AC power source. The load control device may include a controllably conductive device adapted to be coupled in series electrical connection between the AC power source and the electrical load, a zero-cross detect circuit configured to generate a zero-cross signal representative of the zero-crossings of an AC voltage. The zero-cross signal may be characterized by pulses occurring in time with the zero-crossings of the AC voltage. The load control device may include a control circuit operatively coupled to the controllably conductive device and the zero cross detect circuit. The control circuit may be configured to identify a rising-edge time and a falling-edge time of one of the pulses of the zero-cross signal, and may control a conductive state of the controllably conductive device based on the rising-edge time and the falling-edge time of the pulse.

Abstract: A circuit interrupting device including one or more line terminals for connecting to an external power supply, one or more load terminals for connecting to an external load, an interrupting device, a fault detection circuit, and an auto-monitoring circuit. When the auto-monitoring circuit determines that the circuit interrupting device has reached its end-of-life, and it is determined that contacts of said interrupting device have not failed, then a signal is driven to a first level to actuate a switch and open the contacts. Additionally, said signal may further be driven to a second level to inhibit said circuit interrupting device from resetting when it is determined that contacts of said interrupting device have failed.

Abstract: A corona igniter assembly 20 comprises an ignition coil assembly 22, a firing end assembly 24, and a metal tube 26 connecting the ignition coil assembly 22 to the firing end assembly 24. A rubber boot 28 is disposed in the metal tube 26 and compressed symmetrically between a coil output member 30 of the ignition coil assembly 22 and an insulator 42 of the firing end assembly 24. Thus, the rubber boot 28 fills any air gaps and provides a hermetic seal between the ignition coil assembly 22 and the firing end assembly 24 to prevent unwanted corona discharge from forming from those air gaps.

Abstract: In one example, a method includes selectively activating, by control logic and based on a control signal, a switch; in response to determining that an electrical characteristic of a signal provided to the switch satisfies a threshold while the switch is deactivated, activating, by the control logic and regardless of the control signal, the switch until determining that a potential of the signal provided to the switch satisfies a threshold potential; and in response to determining that the potential of the signal provided to the switch satisfies the threshold potential, deactivating the switch.