Abstract: A DC electrical network comprising DC terminals operatively connectable to a converter; and DC transmission paths arranged to interconnect the DC terminals, and including a DC power transmission medium and a switching apparatus. The DC network further including: an active power electronic device connected in at the DC transmission paths, the active power electronic device; a detector configured to detect faults in the DC transmission paths; and a control unit programmed to operate the active power electronic device to vary an apparent impedance of a faulty DC transmission path to force a current flowing in the faulty DC transmission path to reduce to a target current level, and operate the switching apparatus to block current from flowing in the faulty DC transmission path when the current flowing in the faulty corresponding DC transmission path is reduced to the target current level.

Abstract: A circuit breaker is for interrupting an electric circuit if settable protective parameters are exceeded. In an embodiment, the circuit breaker includes an electronic trip unit, in which the set protective parameters are stored, with a movable sealing pane, which covers at least part of the circuit breaker. The circuit breaker further includes a sensor with which a first state of the sealing pane can be ascertained. The electronic trip unit is designed such that changes to the protective parameters are accepted by the electronic trip unit only in the first state of the sealing pane.

Abstract: Provided is a portable electronic device with an embedded electric shock protection function. A portable electronic device with an embedded electric shock protection function according to an exemplary embodiment of the present invention comprises: a circuit board; a camera module mounted on the circuit board; a conductive cover disposed to cover a part of an upper side of the camera module; a conductive connecting part mounted on the circuit board and configured to come into electrical contact with the conductive cover; and an electric shock protection element mounted on the circuit board to be connected in series to the conductive connecting part and configured to pass static electricity introduced from the conductive cover and block a leakage current of an external power source introduced into a ground of the circuit board.

Abstract: Apparatuses and methods for passively monitoring the integrity of current sensing devices and associated circuitry in protective devices such as Ground Fault Circuit Interrupters and Arc Fault Circuit Interrupters are provided. A protection circuit interrupter employs a capacitively coupled noise signal obtained by an arrangement of one or both of the line side arms relative to a Rogowski coil. The noise signal is monitored while the line and load sides of a protective circuit interrupter are disconnected, and the connection of the line and load sides disabled if the noise signal fails to correlate sufficiently to a reference noise cycle. When the line and load sides are connected, the RMS value of the observed current signal is monitored such that the line and load sides are disconnected if the observed current signal fails to meet an RMS threshold.

Abstract: The object of the invention is a distribution system with an electronic fuse terminal and at least one first series terminal, wherein the electronic fuse terminal and the at least one first series terminal are arranged immediately adjacent to one another on a mounting rail, and wherein the electronic fuse terminal and the at least one first series terminal each have at least one adjacent bridging member, wherein the electronic fuse terminal can be supplied with input voltage, with the electronic fuse terminal making at least one protected first output potential available, and wherein the protected first output potential is forwarded to the first series terminal by means of a first bridging plug to the first series terminal.

Abstract: A discharge unit includes a discharge electrode, a counter electrode opposed to the discharge electrode, and an insulation member having a surface. The surface is continuous from the discharge electrode to the counter electrode. A wall portion is provided on one side with respect to a discharge region formed by the discharge electrode. The wall portion is configured to suppress a contaminant from adhering to the surface of the insulation member.

Abstract: Various aspects of the disclosure are directed to circuitry that may be used to shunt current. As may be consistent with one or more embodiments a first circuit has a plurality of alternating p-type and n-type semiconductor regions with respective p-n junctions therebetween, arranged between an anode end and a cathode end. A second (e.g., bypass) circuit is connected to one of the alternating p-type and n-type semiconductor regions, and forms a further p-n junction therewith. The second circuit operates to provide carrier flow, which influences operation of the first circuit.

Abstract: An electronic apparatus and an overvoltage protection structure thereof are provided. The overvoltage protection structure includes a first signal transmission end and a second signal transmission end. The first signal transmission end has at least one first side, and couples to a protected component through a conductive wire. The second signal transmission end has at least one second side, wherein the at least one second side corresponds to the at least one first side and is adjacent to the at least one first side. Therein, there is at least one gap between the at least one second side and the at least one first side, and the gap is positively related to a threshold voltage of the overvoltage protection structure.

Abstract: The present disclosure discloses a drive circuit of a transistor, including: a high-voltage power supply and a low-voltage power supply; a high-voltage power supply domain circuit and a low-voltage power supply domain circuit, where the high-voltage power supply domain circuit is connected to the high-voltage power supply; an electrostatic discharge apparatus; a level shifter circuit, wherein the level shifter circuit includes a level detection circuit, a current limiting module, a discharge module, and a switch transistor, the level detection circuit is connected to a positive electrode of the high-voltage power supply and is separately connected to the current limiting module, the discharge module, and the high-voltage power supply domain circuit, the current limiting module is further connected to a first end of the switch transistor, the discharge module is further connected to a negative electrode of the high-voltage power supply, a control end of the switch transistor is connected to the low-voltage pow

Abstract: A control device for connecting between two portions of an electrical power supply line. The device includes a bipolar transistor including a wide bandgap semiconductor material and having its emitter connected to one portion of the power supply line, its collector connected to another portion of the power supply line, and the device also including control connected to the base of the transistor.

Abstract: A power switching control device includes a voltage measurement unit to measure a power-source-side voltage of a circuit breaker and a load-side voltage of the circuit breaker, an inter-pole-voltage estimation unit to estimate a future inter-pole voltage from a value of the power-source-side voltage and a value of the load-side voltage, a target closing-clock-time determination unit to set a target activation point of the circuit breaker on a waveform of an absolute value of the future inter-pole voltage, set an inter-pole withstand-voltage characteristic line calculated from a rate of decrease of dielectric strength, so that the inter-pole withstand-voltage characteristic line passes through the target activation point, and determine a clock time when the inter-pole withstand-voltage characteristic line becomes zero as a target closing clock time of the circuit breaker, and a closing control unit to close the circuit breaker at the target closing clock time.

Abstract: A semiconductor apparatus can block the voltage from the power source when the voltage from the power source reaches an excessive level, without requiring a larger chip size. Provided is a semiconductor apparatus including a power semiconductor element a gate of which is controlled in response to a control signal, an overvoltage detector configured to detect that a voltage at a collector terminal of the power semiconductor element reaches an overvoltage level, and a block unit configured to, in response to the detection of the overvoltage level, control the gate of the power semiconductor element to transition to an off-voltage. The semiconductor apparatus may further include a reset unit configured to, in response to that the control signal is input that turns on the power semiconductor element, output a reset signal for a predetermined period of time.

Abstract: An ESD circuit is connected with a pad. The ESD circuit includes a voltage divider, a RC circuit and a path control circuit. The voltage divider is connected between the pad and a first node and provides plural divided voltages. The RC circuit is connected between the pad and the first node. The RC circuit receives the plural divided voltages and provides a control circuit. The path control circuit is connected with the pad and the first node. The path control circuit receives the plural divided voltages and the control voltage. When the pad receives a first ESD zap, the RC circuit controls the path control circuit to turn on a first ESD current path. Consequently, an ESD current flows from the pad to the first node through the first ESD current path.

Abstract: An electrostatic chucking apparatus includes a movable member arranged for movement relative to an axial axis, at least one electrostatic chuck coupled to the movable member, and a stationary member. At least one moving insulated electrode is coupled to the movable member, and at least one stationary insulated electrode is coupled to the stationary member in an axial position corresponding to the at least one moving insulated electrode. A slip ring contact couples electrical energy from the at least one stationary insulated electrode to the at least one moving insulated electrode.

Abstract: One embodiment provides a switching regulator circuit having an overcurrent protection function that enables complete overcurrent protection though simple in configuration. The switching regulator circuit generates an output signal while boosting an input voltage by switching on/off a switching element using a PWM signal. The switching regulator circuit is equipped with a load switch which is connected to the switching element in series and is normally on. And, the switching regulator circuit is further equipped with an overcurrent protection circuit which keeps the load switch off if a current flowing through the switching element is an overcurrent.

Abstract: An arc detection apparatus is provided. The arc detection apparatus detects an arc using an electrical energy, eliminates the possibility of a false arc detection caused by noise due to a power environment, increases accuracy of arc detection, and prevents fires that may occur in a home or an industrial site due to an arc occurrence.

Abstract: A differential protection method for generating a fault signal includes measuring current measurements at least at two different measuring points of a multiphase transformer for each phase. The current measurements for each phase are used to form differential current values and stabilization values. The fault signal is generated if it is determined during a trigger region check that a measurement pair of at least one of the phases, being formed by using one of the differential current values and the associated stabilization value in each case, is in a predefined trigger region. In order to be able to selectively and reliably distinguish an external fault from an internal fault, the transformer has a grounded star point and a zero system current flowing through the star point is used to form the stabilization values. A corresponding differential protection device is provided for performing the differential protection method.

Abstract: A ground fault circuit interrupter (GFCI) breaker testing system can include an enclosure having at least one wall that forms a cavity. The system can also include at least one GFCI breaker disposed within the cavity. The system can further include a sensing circuit assembly having at least one switch, where the at least one switch is electrically coupled to the at least one GFCI breaker. The system can also include a user interface assembly disposed, at least in part, outside the cavity, where the user interface assembly is coupled to the sensing circuit assembly, where the user interface assembly instructs the at least one switch to test the at least one GFCI breaker.

Abstract: An overvoltage protection device protects an electronic medical device in the event of a transient overvoltage on one or more patient lines of the device. A current limiting device is placed in series in a patient line between electronic components of the medical device and a patient interface. A biasing voltage generating device has at least one biasing element located in a line extending off the patient line and at least one additional circuit element connected in series with the biasing element. The biasing voltage generating device is configured to apply a predetermined biasing voltage to the current limiting device via the biasing element in response to a transient overvoltage on the patient line, whereby the current limiting device is switched off and limits current flow through the patient line.

Abstract: The present application discloses a display apparatus having a driver integrated circuit (IC) bonding area for bonding a plurality of signal lines with a driver IC. The display apparatus includes a conductive line layer in a peripheral area of the display apparatus, configured to discharge electrostatic charge in the driver IC bonding area.