Abstract: A radio-frequency identification (RFID) fluid connection, including a tube or hose, the tube or hose including a radially outward facing surface, a RFID assembly or label connected the radially outward facing surface, including a RFID tag, and at least one contact electrically connected to the RFID tag.

Abstract: A method for detection of a sub-synchronous oscillation in a power system includes measuring a three-phase measurement signal of an electric system value, analyzing the measurement signal to detect an oscillation component of the measurement signal having an oscillation frequency lower than a system frequency of the power system, deciding whether the detected oscillation component at the oscillation frequency qualifies as a sub-synchronous oscillation, and disconnecting a generator from the power system that might be affected by the sub-synchronous oscillation. To detect sub-synchronous oscillations with low computational effort and good accuracy, an amplitude of each phase of the oscillation component is calculated and compared against a threshold, a sub-synchronous oscillation is detected upon exceeding the threshold during a given time delay, and a fault signal is generated upon detecting a sub-synchronous oscillation. A device having a processing unit is also provided.

Abstract: The present disclosure discloses an apparatus for protection against electrostatic discharge and a method of manufacturing the same. The apparatus comprises: a first input/output pad electrically connected to an input/output pin and comprising an input/output protection circuit provided between a power source line and a ground line, wherein the input/output protection circuit is configured to release an electrostatic discharge current generated at the input/output pin; and a second input/output pad which is an empty pad electrically connected to the input/output pin and an RF input/output terminal of an internal RF circuit and is configured to receive a signal from the input/output pin and transmit the signal to the internal RF circuit. With the above apparatus, parasitic capacitive load can be minimized while electrostatic protection is performed on the RF circuit.

Abstract: A power conversion device includes a transformer circuit formed of a center-tapped isolation transformer, a rectifying circuit formed of a semiconductor switch element connected to the transformer circuit, a smoothing circuit formed of a capacitor connected to the rectifying circuit, a positive terminal and a negative terminal connected to a load, and a grounding surface to which the negative terminal is connected, wherein a current path along which only an AC current flows is shortened by a negative terminal of the isolation transformer and a negative terminal of the capacitor being connected before being connected to the grounding surface, or the negative terminal connected to the load and the negative terminal of the capacitor being connected before being connected to the grounding surface.

Abstract: A method for preventing a frequency component of a voltage from occurring in an electrical machine including the steps of: obtaining, either by measuring a voltage signal or a current signal from the electrical machine in time domain and transforming the measured signal into frequency domain, by simulating or deducing a first frequency component present in the electrical machine in absence of a grounding, the first frequency component representing a first undesired frequency higher than a limit frequency of 500 Hz; and providing the electrical machine with a first grounding at a grounding location, the first grounding including a resonant circuit resonating at the first undesired frequency. In order to get rid of harmful shaft voltages in the form of sharp voltage peaks at high frequencies, it is first necessary to determine at which undesired frequency or frequencies these voltage peaks occur.

Abstract: A system and method for detecting electrical events, often a corona associated with an impending lightning strike, including a coupling mechanism configured to establish an electromagnetic connection with a conductive substrate to receive signals intercepted by the conductive substrate. A detector circuit converts and discriminates the received signals into output signals. An output mechanism records and/or transmits the output signals, as well as determines if the output signal represents a qualified event signal.

Abstract: A transformer system including a transformer including a set of wye windings, a three-phase current transformer, a neutral-current transformer, and a controller. The three-phase current transformer outputs a first signal indicative of a three-phase current conducting through the set of wye windings and the three-phase current transformer. The neutral-current transformer couples the current flowing from the ground to the neutral node of the transformer, and outputs a second signal indicative of a neutral current conducting from the ground node to the neutral node of the transformer. The controller receives the first signal and the second signal, determines whether an external ground fault condition or an internal ground fault condition is present based on the three-phase current and the neutral current, and determines whether a wiring error is present for the three-phase current transformer or the neutral-current transformer based on the three-phase current and the neutral current.

Abstract: An arc detection method includes classifying whether an arc fault is present in the power system by, for each of a plurality of bins of a current frame of a signal, marking the bin as a candidate bin if a magnitude spectrum of the bin meets first criteria; determining a number of candidate bins in the current frame; marking the number of candidate bins as candidate cluster bins if the number of candidate bins exceeds a minimum cluster size; for each of the candidate cluster bins, determining whether the candidate cluster bin is also a candidate cluster bin of a previous frame of the first signal and if so, identifying the current frame as a candidate frame and incrementing a candidate frame count; and if the candidate frame count exceeds a candidate frame count threshold, determining that an arc fault is present in the power system.

Abstract: A lighting relay panel may include lower-cost features or components related to improved safety and reliability. In some cases, the relay panel includes a power supply capable of protecting the panel from high-voltage and high-current transients. A microcontroller may determine a power interruption based on a zero-cross signal received from the power supply, and may also configure latching relays during the interruption. In some implementations, the relay panel includes a relay sense circuit that is capable of receiving actuation signals from multiple relays connected to different phases of a power signal, and the microcontroller may synchronize or repeat the actuations based on a signal from the relay sense circuit. The microcontroller may generate relay addresses based on the relay positions within the relay panel. In some cases, the relay panel may include isolation circuits that are capable of providing an isolated control signal having an improved voltage range.

Abstract: A current measuring device is protected against electrical surges in the event of the device being open circuit. The device includes a first current transformer, a first connection terminal having connected thereto a first terminal of the first current transformer, a second connection terminal having connected thereto a second terminal of the first current transformer, a protective resistance having a first terminal connected to the second connection terminal, and a load resistance connected between the first and second connection terminals across the terminals of which a voltage is measured from which the current flowing in a circuit passing through the first current transformer is determined. The device also includes a second current transformer connected to the terminals of the protective resistance, and current branch connection structure connected between the first connection terminal and a second terminal of the protective resistance.

Abstract: A control circuit for an electric leakage circuit breaker, capable of preventing an error in determining an electric leakage generation due to an offset voltage of an input amplifier, including, a zero phase current transformer configured to detect a zero phase current on a circuit as a leakage detection signal, a filter circuit section configured to remove a high frequency noise included in the leakage detection signal, an input amplifier configured to a voltage formed by a current of the leakage detection signal and an impedance of the filter circuit section, and includes a pair of transistors, a base current generator commonly connected to the bases of the pair of transistors and configured to supply the same amount of base current to the pair of transistors, and a trip determination circuit section configured to determine whether to output a trip control signal.

Abstract: A motorized system that allows for calibration by a user, and that features circuit protection and detection of motor stoppage. A motorized window-blind system is an example of such a system and is disclosed herein. In particular, a circuit is featured that comprises a TRIAC, or “triode for alternating current,” and TVS diodes, or “transient-voltage-suppression diodes,” providing voltage protection to various types of motor-related electronic components. A controller is disclosed that features measurement of voltage that is induced on a secondary winding of a motor, in order to detect certain events that occur during the operation of the motor. A calibration method is also disclosed that can account for one or both of the protection circuit and event-detecting controller. The calibration method accounts for human interaction and, in doing so, is intended toward making a calibration process of a motorized household system less prone to human error.

Abstract: This control device for controlling a loudspeaker (14) in a loudspeaker enclosure, comprises: an input for an audio signal to be reproduced; a supply output for supplying an excitation signal for the loudspeaker; the calculation means (26, 36, 38, 70, 71, 80, 90) for calculating, at each time instant (t), at least one predicted current (iref(t)) for the excitation signal for the loudspeaker (14) as a function of the audio signal. It comprises an attenuator (71) that is capable of limiting the predicted current to a limited current value that is lower than a ceiling value by application, to the predicted current, of an attenuation gain which is a function of the predicted current.

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 energy-saving ground-fault circuit interrupter (GFCI) includes an electronic circuit board provided in a housing and a breaker switch mounted on and controlled by the electronic circuit board. The electronic circuit board includes a power circuit, a test circuit, a work indicator circuit, a leakage detection circuit, a neutral-line ground fault detection circuit, a silicon-controlled rectifier (SCR) circuit, and an integrated circuit. The GFCI is characterized by further including a dual-coil switch-closing circuit parallel-connected to the power circuit and is advantageous in that the breaker switch can be rapidly closed by simultaneously supplying electricity to both coils to effect strong electromagnetic attraction, is kept closed by only one of the coils after current to the other coil is cut off via the properties of capacitors, and when a circuit fault occurs, is opened via an SCR which renders the single working coil out of electricity to ensure safety.

Abstract: An electrical arc detector for a series electrical connection as may be associated with an electric meter may comprise: an arc detector housing; a source of electrical power; a de-tuned resonant tank circuit configured to receive a magnetic field and/or an electric field generated by an electrical arc at a series electrical connection; an electrical detector for detecting signals generated in the de-tuned resonant tank circuit responsive to the magnetic field and/or the electric field generated by an electrical arc; and an output device responsive to the electrical detector and configured to provide a human perceivable indication of detection of an electrical arc at the series electrical connection.

Abstract: A high isolation wideband switch is disclosed. In one aspect, the switch includes an integrated circuit package having an integrated circuit die with a first plurality of leads that is positioned on a package substrate that has a second plurality of leads. The first leads of the integrated circuit die are connected to the second the leads of the package substrate via bond wires and a first electrical coupling occurs between the first leads and the integrated circuit die in response to an RF signal applied to the integrated circuit package. The bond wires have a second electrical coupling in response to the RF signal and the bond wires are arranged such that the second electrical coupling is matched to the first electrical coupling within a selected frequency band so as to reduce the overall electrical coupling of the integrated circuit package for RF signals within the selected frequency band.

Abstract: A relay antenna includes a power relay coil. An automatic tuning assist circuit is coupled with the relay antenna. The automatic tuning assist circuit has first and second terminals coupled with the relay antenna. Multiple switches are arranged together with N (N represents an integer) auxiliary capacitors between the first terminal and the second terminal. A controller is configured to switch on and off each of the multiple switches in synchronization with an electric power signal transmitted from a wireless power supply apparatus.

Abstract: A wireless power transmission device is provided. The wireless power transmission device includes a resonance signal generator and a controller. The resonance signal generator is configured to transmit wireless power to a wireless power reception device. The controller is configured to adjust the wireless power transmitted to the wireless power reception device, when a predetermined condition caused by over-voltage protection operation at the wireless power reception device is detected.

Abstract: A communication system and method including the steps of receiving a first request to initiate a guaranteed quality of service flow in a network, broadcasting a second request from a Network Coordinator to a plurality of nodes connected to the network and receiving a first response to the second request from at least one ingress node. The method further includes receiving a second response to the second request from at least one egress node indicating whether the at least one egress node has available resources to receive the guaranteed quality of service flow and allocating resources for the guaranteed quality of service flow if the at least one ingress node has available resources to transmit, and the at least one egress node has available resources to receive, the guaranteed quality of service flow.

Abstract: A wireless power transfer system includes a wireless power receiver having a rectifier. The rectifier includes switches. The wireless power receiver is operable to control the switches for ensuring a complex impedance at the input of the rectifier.

Abstract: A system and method for tracking medical articles located in a container includes a hybrid isolated magnetic dipole (“IMD”) probe that provides an activating EM energy RF field having a magnetic near field at least as great as the electric near field, both of which cover the entire interior of the container. The probe comprises a main element having capacitive coupling across at least one slot and spacing above a ground plane to thereby form an isolated electric field and an equally strong or stronger magnetic field that fills the interior of the container to activate RFID tags therein. A dual system is provided for larger containers. A dynamic impedance tuning system controls the probe impedance for increased efficiency in transferring power to the interior of the container. Beam steering is provided with the IMD probe.

Abstract: A transparent metal mesh is used as an antenna element and is disposed over a graphical display so that the graphical display can be seen through the transparent metal mesh. A radio circuit is coupled to the metal mesh to receive radio signals using the transparent metal mesh. In some embodiments the radio circuit can also transmit signals using the transparent metal mesh as an antenna.

Abstract: A method for leakage current compensation in a photovoltaic system includes determining a reference current flowing from at least one current-carrying line under voltage via a capacitor to earth, and generating a compensation current, having a phase and a frequency of the reference current, and having an amplitude adjusted by a negative scaling factor based on the reference current. The method further includes determining a current sum using a differential current sensor for at least a portion thereof, wherein the addends of the current sum are the currents through a complete set of current-carrying lines and the compensation current, minimizing the determined current sum by adjusting the scaling factor, and routing the compensation current through at least one other differential current sensor, such that the compensation current compensates a leakage current component of a differential current monitored by the other differential current sensor. A related device and system is also disclosed.

Abstract: An apparatus and method for sensing a leakage current along a primary conductor are provided. A first fault detection module is deployed at a first location along the primary conductor and a second driver module is deployed at a second location along the conductor, where the conductor passes through current sensors at each of the modules. The modules are further linked by a safety cable, which also passes through the current sensors. The driver module drives a compensation current in the safety cable to drive the net current passing through the driver current sensor to zero. The fault sensing module senses the net current passing through its current sensor. When the sensed current deviates significantly from zero, the fault sensing module generates a leakage current indication signifying a potential ground fault between the two modules.

Abstract: A relay includes a first terminal, a second terminal, a third terminal, a fourth terminal, separable contacts electrically connected between the first and second terminals, an actuator coil comprising a first winding and a second winding, the first winding electrically connected between the third and fourth terminals, the second winding electrically connected between the third and fourth terminals, a processor, an output, a first voltage sensing circuit cooperating with the processor to determine a first voltage between the first and second terminals, and a second voltage sensing circuit cooperating with the processor to determine a second voltage between the third and fourth terminals. The processor determines that the separable contacts are closed when the first voltage does not exceed a first predetermined value and the second voltage exceeds a second predetermined value and responsively outputs a corresponding status to the output.

Abstract: A system and method to test integrity of an electricity power supply network in an aircraft is disclosed. The system comprises: a current injector for connection to an output point of one or more phase line forming a test circuit with an electricity generator, the current injector configured to inject a test signal through the electricity generator in the test circuit; a current measurement test probe for installation in the test circuit to measure intensity of the injected test signal current; and a processing unit to connect to the current measurement test probe and to a set of input and output current measurement probes associated with the phase line to acquire current intensity measurement signals output by the current measurement test probe and by the set of input and output current measurement probes, and to determine electricity indicators representative of the integrity of the electricity power supply network.

Abstract: A novel and useful fully integrated switched-mode wideband 60 GHz power amplifier architecture. Using an appropriate second-harmonic termination of its output matching network, the required systematic peak current of the final stage is reduced such that the PA functions as a class-E/F2 switched-mode PA at saturation. In addition, low/moderate magnetic coupling factor transformers in the intermediate stages enable the PA to reach a high power added efficiency (PAE) and bandwidth product. Transformers of low/moderate coupling are also utilized in the preliminary stages of the PA to improve the overall bandwidth. In addition, the PA exploits the different behavior of the output impedance matching network for differential mode (DM) and common mode (CM) excitations. The PA is also stabilized against the combination of DM and CM oscillation modes. The PA also provides a technique to stabilize transformer-based mm-wave amplifiers against various modes of undesired oscillations.

Abstract: A controller for a power conversion circuit that includes an inductor, a diode, and a switch. The controller includes a counter configured to determine, based on a first voltage input to the inductor, an on-time of the diode. The on-time of the diode corresponds to an amount of time that the diode is conducting a first current to a load of the power conversion circuit. A current estimation circuit configured to estimate, based on the on-time of the diode and an on-time of the switch, an output current of the power conversion circuit. The on-time of the switch corresponds to an amount of time that the switch is conducting a second current. A pulse width modulator is configured to provide, based on the estimated output current, a gate drive signal to the switch. The gate drive signal selectively transitions the switch between an on state and an off state.

Abstract: A load testing apparatus includes a resistance unit configured with a plurality of resistor-groups arranged in stages, each resistor-group including an array of resistors, and a coupling switch unit including a main body, a switching unit that controls resistor-groups applied for a load test among the plurality of resistor-groups, and a first bus bar coupled to a first terminal of the switching unit and one of power source lines from a power source subjected to the load test. A terminal of the resistor of the resistor-group is coupled to a second terminal of the switching unit. The main body includes a first face and a second face vertical to the first face, the switching unit being attached to the first face, the first bus bar being attached to the second face via an insulator with a certain gap between the first bus bar and the second face.

Abstract: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

Abstract: An AC/DC conversion circuit of a power conversion apparatus receives an AC signal and has a switching element. A voltage sensing circuit generates a voltage reference signal according to an AC voltage signal. A harmonic generation circuit generates a harmonic injection signal according to the voltage reference signal. A subtraction circuit of a maximum power tracking circuit outputs a first DC signal and a second DC signal according to the voltage reference signal. An arithmetic circuit outputs a reference signal. A current sensing circuit outputs a feedforward signal according to one phase of an AC current signal. A current control circuit outputs an error signal according to the reference signal and the feedforward signal. A pulse width modulation circuit outputs a control signal to control the switching element according to the error signal and the harmonic injection signal, so that an aerogenerator operates at the maximum power approximation line.

Abstract: The present invention is directed to a protective device that includes a cover assembly having a plurality of receptacle openings, a reset button and a test button. The reset button and the test button are disposed along a first diagonal and in opposite corners of a substantially square area defined by the reset button and test button. At least one receptacle contact structure includes a portion extending across the first diagonal and at least one receptacle contact substantially aligned with one of the receptacle openings. An electromechanical apparatus is disposed in the back body within a region substantially aligned with the substantially square area. The electromechanical apparatus includes a toroidal sensor assembly coupled to an actuator coil arranged along a center axis in substantial alignment with the first diagonal, the center axis forming an acute angle relative to a side wall of the back body.

Abstract: There is provided a radio frequency input circuit including a first direct current blocking unit provided between an input terminal and an input circuit unit and blocking a direct current voltage introduced through the input terminal, a first ESD protection circuit unit provided in parallel with the first direct current blocking unit and forming a bypass path according to an ESD voltage introduced through the input terminal, and a ground circuit unit provided between a first connection node between the first direct current blocking unit and the input circuit unit, and a ground, and forming a ground path according to the ESD voltage.

Abstract: A circuit for protecting a transistor is enclosed. The circuit includes a temperature sensing device coupled to the transistor and a tunable clamping circuit connected between transistor terminals, wherein the tunable clamping circuit is configured to provide an adjustable clamping voltage. A temperature controller coupled to the temperature sensing device and the tunable clamping circuit is also included. The temperature controller is configured to trigger a change in a clamping voltage of the tunable clamping circuit based on a feedback from the temperature sensing device.

Abstract: Provided is an amplifying repeater to intensify and amplify a magnetic field of electromagnetic waves. Also provided is a wireless power conversion charging device using the magnetic field of electromagnetic waves, which is located between an electromagnetic wave generating source transmitter and a receiving coil or attached to a transmitter and a receiving coil. Accordingly, charging power for various electronic devices can be provided and power can be wirelessly supplied to various loads.

Abstract: A protective device protects an LC filter in a vehicle. The vehicle includes a first vehicle-mounted electric device and a second vehicle-mounted electric device. The first vehicle-mounted electric device includes a first power converter. The second vehicle-mounted electric device includes a second power converter and shares a power supply with the first vehicle-mounted electric device. The LC filter is arranged between the first power converter and the power supply. The LC filter is configured such that the resonance frequency band of the LC filter can be changed. The resonance frequency band of the LC filter is changed based on a ripple amount in a current flowing in the LC filter.

Abstract: An exemplary method is disclosed for disturbance current compensation for an electrical system by a disturbance current compensation device, which electrical system has a voltage source and a series circuit which is connected via a conductor in parallel with the voltage source. The series circuit has an inductance and a capacitance, with the inductance being connected in series with the capacitance via a conductor. To compensate for disturbance currents, the conductor for the connection of the voltage source to the series circuit of the inductance with the capacitance, and/or the conductor of the series circuit between the inductance and the capacitance, can be surrounded by a ring (e.g., a portion of the conductor can be substantially surrounded by the ring) which can be magnetized. The ring includes an air gap of the disturbance current compensation device. A compensation voltage can be applied by magnetization of the ring.

Abstract: The present invention relates to an integrated power inserter, comprises: a housing; a voltage lowering and rectifying member; and a coupling member having a power input end, a radio frequency signal coupling circuit, a radio frequency signal input end and a radio frequency signal output end, wherein the radio frequency signal input end is input with a radio frequency signal and outputs a power signal, the radio frequency signal output end outputs a radio frequency signal being coupled to a television; with the mentioned structure of the integrated power inserter, a power inserter can be integrated in a power adaptor for simplifying wire layout and lowering production cost.

Abstract: The present invention provides an amplifying repeater, which is constructed in such a manner that a ferrite core is inserted into a coil with a predetermined number of winds to increase an induced electromotive force caused by an increase in flux linkage using a time-varying magnetic field of electromagnetic waves at a position distant from various electromagnetic wave generating sources by a predetermined distance and the induction coil and a variable condenser for inducing resonance are connected to each other to increase current while reducing a resistant component existing in the induction coil to intensify and amplify the magnetic field of electromagnetic waves. Furthermore, the present invention provides a wireless power conversion charging device using the magnetic field of electromagnetic waves, which is located between an electromagnetic wave generating source transmitter and a receiving coil or attached to the transmitter and receiving coil.

Abstract: A structure and method for reducing the effects of chip-package resonance in an integrated circuit assembly is described. A series RLC circuit is employed to reduce the output impedance of the power delivery system at the resonance frequency.

Abstract: An RF signal processing device which includes a countermeasure set connected to the processing device. The RF signal processing device shifts an incoming RF signal by ninety degrees and combines the phase shifted RF signal with RF jamming signals from a jammer. The processing device next transmits the RF signal including the RF jamming signals from the jammer.

Abstract: A structure and method for reducing the effects of chip-package resonance in an integrated circuit assembly is described. A series RLC circuit is employed to reduce the output impedance of the power delivery system at the resonance frequency.

Abstract: An apparatus for protecting hardware devices is disclosed. A DC pass RF surge suppressor includes a housing defining a chamber having a central axis, the housing having an opening to the chamber, an input conductor disposed in the chamber of the housing and extending substantially along the central axis of the chamber, an output conductor disposed in the chamber of the housing and extending substantially along the central axis of the chamber, a non-linear protection device positioned in the opening of the housing for diverting surge energy to a ground, a capacitor connected in series with the input conductor and the output conductor, a first spiral inductor having an inner edge connected to the input conductor and an outer edge coupled to the non-linear protection device, and a second spiral inductor having an inner edge connected to the output conductor and an outer edge coupled to the non-linear protection device.

Abstract: The present invention provides an amplifying repeater, which is constructed in such a manner that a ferrite core is inserted into a coil with a pre-determined number of winds to increase an induced electromotive force caused by an increase in flux linkage using a time-varying magnetic field of electromagnetic waves at a position distant from various electromagnetic wave generating sources by a predetermined distance and the induction coil and a variable condenser for inducing resonance are connected to each other to increase current while reducing a resistant component existing in the induction coil to intensify and amplify the magnetic field of electromagnetic waves. Furthermore, the present invention provides a wireless power conversion charging device using the magnetic field of electromagnetic waves, which is located between an electromagnetic wave generating source transmitter and a receiving coil or attached to the transmitter and receiving coil.

Abstract: An electrostatic discharge protection circuit has a substrate; a first P-well installed on the substrate and having a first P+-doped region and a first N+-doped region, both of which are connected to ground; a second P-well installed on the substrate and having a second P+-doped region and a second N+-doped region, both of which are connected to a power supply voltage; and a third P-well installed on the substrate and having a third N+-doped region, a third P+-doped region, and a fourth N+-doped region, all of which are for input/output signals.

Abstract: An exemplary method is disclosed for disturbance current compensation for an electrical system by a disturbance current compensation device, which electrical system has a voltage source and a series circuit which is connected via a conductor in parallel with the voltage source. The series circuit has an inductance and a capacitance, with the inductance being connected in series with the capacitance via a conductor. To compensate for disturbance currents, the conductor for the connection of the voltage source to the series circuit of the inductance with the capacitance, and/or the conductor of the series circuit between the inductance and the capacitance, can be surrounded by a ring (e.g., a portion of the conductor can be substantially surrounded by the ring) which can be magnetized. The ring includes an air gap of the disturbance current compensation device. A compensation voltage can be applied by magnetization of the ring.

Abstract: A leakage current protection device with a single laminated magnetic core transformer that is formed by punch pressing an amorphous metal material, or a nanocrystalline soft metal material, in a high punch velocity press to form the ring laminations for the magnetic core. In a ground fault circuit interrupter, the single laminated magnetic core transformer serves as the input sensor for both the current imbalance detection circuitry and the low impedance ground fault protection circuitry.

Abstract: A structure and method for reducing the effects of chip-package resonance in an integrated circuit assembly is described. A series RLC circuit is employed to reduce the output impedance of the power delivery system at the resonance frequency.

Abstract: A detector system for precursively identifying an electrical arcing event is provided. The system may include a transmission channel for transmitting a radio frequency signal to a zone where an arcing event may occur. The system may further include a reception channel for receiving a radio frequency signal resulting from an interaction of the transmitted radio frequency signal and an electric field which forms at the zone as a precursor to an arcing event. A pre-arc identification circuit may be coupled to process the resulting radio frequency signal. The identification circuit may be configured to generate a signal indicative of a pre-arc condition based on at least one parameter of the resulting radio frequency signal.