Abstract: At least some embodiments of the present disclosure direct to an electrostatic sheet jamming apparatus comprising a first sheet comprising a first conductive layer, the first sheet comprising a set of first features, a first dielectric layer, and a second sheet comprising a second conductive layer and disposed proximate to the first dielectric layer, the second sheet comprising a set of second features. The first dielectric layer is disposed between the first conductive layer and the second conductive layer. The first sheet and the second sheet are non-extensible and flexible. The first sheet and the second sheet are movable relative to each other in a first state. The first sheet and the second sheet are jammed with each other in a second state when a voltage is applied between the first conductive layer and the second conductive layer.

Abstract: An integrated circuit device having insulated gate field effect transistors (IGFETs) having a plurality of horizontally disposed channels that can be vertically aligned above a substrate with each channel being surrounded by a gate structure has been disclosed. The integrated circuit device may include electrostatic discharge (ESD) protection circuit structures. The ESD protection circuit structures may be formed in regions other than the region that the IGFETs are formed as well as in the region that the IGFETs having a plurality of horizontally disposed channels that can be vertically aligned above a substrate with each channel being surrounded by a gate structure are formed. By forming ESD protection circuit structures in regions below the IGFETs, an older process technology may be used and device size may be decreased. Furthermore, planar IGFETs of FinFETs may be formed in other regions to decrease device size and improve costs.

Abstract: The present disclosure provides a display panel static electricity protection device (400), static electricity protection method, and a display device (100), including a detection sub-circuit (401), a detection sub-circuit (401), a discharge circuit (402) connected with the driving chip (301), a current driving sub-circuit (403) connected with the detection sub-circuit (401), the discharge circuit (402), and a discharge terminal (404), and the discharge terminal (404) connected with a grounding wire of the driving circuit board. The detection sub-circuit (401) detects static electricity, the current driving sub-circuit (403) inputs and detects current in the detection sub-circuit (401) to open or close the discharge circuit (402). The static electricity is discharged to the discharge terminal (404) through the discharge circuit (402) and the current driving sub-circuit (403).

Abstract: An ionic wind generator and an electronic device having a heat dissipation function using the same are proposed. The ionic wind generator includes a power module; a first electrode configured to receive power from the power module by being connected to the power module to become an emitter electrode; and a second electrode spaced apart from the first electrode and grounded and at the same time connected to the power module to become a counter electrode. In addition, the first electrode is configured as a carbon brush including multiple carbon fibers. Accordingly, in the ionic wind generator, the emitter electrode is configured as the carbon brush having multiple carbon fibers.

Abstract: A resettable electronic fuse for a high-power device such as a power tool, a battery pack for the power tool, or a battery pack charger. The resettable electronic fuse is connected in a current path of the device and is operable or configured to selectively interrupt current through the resettable electronic fuse based on a detected condition of the device (e.g., a detected fault condition of the device). The resettable electronic fuse is also configured to be reset after a detected fault condition has ended. In some embodiments, the resettable electronic fuse is configured to reset itself. In other embodiments, the resettable electronic fuse is configured to receive a signal (e.g., from a device controller) to reset.

Abstract: An output circuit included in an integrated circuit may employ multiple protection circuits to protect driver devices from damage during an electrostatic discharge event. One protection circuit clamps a signal port to a ground supply node upon detection of the electrostatic discharge event. Another protection circuit increases the voltage level of a control terminal to one of the driver devices during the electrostatic discharge event to reduce the voltage across the driver device and prevent damage to the device.

Abstract: A power storage device includes a plurality of power storage units and a plurality of disconnection units. The plurality of power storage units are electrically connected in parallel between a pair of connection points. The plurality of disconnection units each connect to a corresponding power storage unit in the plurality of power storage units. Each of the plurality of disconnection units is configured to electrically disconnect between the corresponding power storage unit and at least one of the pair of connection points in accordance with flowing of a current at a value more than or equal to a predetermined value in the corresponding power storage unit.

Abstract: At least some embodiments of the present disclosure direct to a flexible device, comprising a flexible component layer, and a jamming device disposed proximate to the flexible component layer. The jamming device permits the flexible component layer to be bent in a first state. The jamming device is configured to resist bending of the flexible component layer in a second state.

Abstract: Electrostatic discharge protection for high speed transceiver interface is disclosed. In one aspect, an electrical overstress (EOS) protection device includes an anode terminal and a cathode terminal, a silicon controlled rectifier, a second NPN bipolar transistor including a base connected to the anode terminal and an emitter connected to an emitter of the first PNP bipolar transistor, and a second PNP bipolar transistor including an emitter connected to an emitter of the second NPN bipolar transistor and a base connected to a base of the first PNP bipolar transistor. Two or more paths for current conduction are present during a positive overstress transient that increases a voltage of the anode terminal relative to the cathode terminal, including a first path through the silicon controlled rectifier and a second path through the second NPN bipolar transistor and the second PNP bipolar transistor.

Abstract: A circuit for controlling an interface between an integrated circuit of an electronic device and an external device includes each of an interface control switch and an overvoltage protection switch. The interface control switch includes a controller for controlling a mode of the interface between a data communication mode that connects the external device to the integrated circuit of the electronic device via one or more communication lines of the electronic device, and a power transmission mode that connects a power source of the external device to a battery of the electronic device. The controller includes a reset line for resetting the interface control switch. The overvoltage protection switch is connected between the one or more communication ports and the reset line, and is configured to activate the reset line of the controller in response to an overvoltage condition at the one or more communication lines of the electronic device.

Abstract: A system and method for identifying an earth fault in a resonant grounded medium voltage network that employs a REFCL compensation system. The method derives a zero-sequence real power from a phase voltage to ground on each phase and a current on each phase and aligns the zero-sequence real power in time with a magnitude of a zero-sequence voltage provided by the REFCL compensation system. The method determines when the zero-sequence real power and the zero-sequence voltage exceed predetermined thresholds. The method delays the magnitude of the zero-sequence voltage for a predetermined period of time when the zero-sequence voltage exceeds the threshold and determines that the fault is occurring when both the time aligned zero-sequence real power exceeds the threshold and the magnitude of the zero-sequence voltage exceeds the threshold for the predetermined period of time at the same time.

Abstract: The present disclosure provides a system, apparatus and method for providing rapid shutdown for photovoltaic power systems and provides a system, apparatus and method for providing arc sensing for photovoltaic power systems. An AC current can be put on the DC bus to control PV panel shutdown. Local mean decomposition can be used to sense arcing on the DC bus.

Abstract: A method for monitoring a polyphase network includes the steps, repeated regularly, of: acquiring voltage measurements taken by voltage sensors of an item of electrical equipment, and producing current values of electrical parameters; accessing a reference table comprising a list of connection configurations each associated with a distinct combination of reference values of said electrical parameters, the list of connection configurations comprising configurations each corresponding to a combination of connection states for each phase (P1, P2, P3) and for the neutral (N); implementing an exploratory algorithm intended to explore the reference table to identify the current connection configuration.

Abstract: A dropout recloser is capable of in accordance with its operating programming after a predetermined number of fault interrupting operations, e.g., 1, 2, 3 or more but typically 3, to drop out of a cutout and hang freely in a hinge contact of the cutout providing sectionalization with an observable visible gap. The recloser includes fault interrupting and reclosing components, a drop out mechanism and a controller. The drop out mechanism may include a bi-stable actuator to affect fault interrupting operation and dropout operation. The device may include motion limiting structures. The recloser may have a number of operating modes or sequences.

Abstract: An electrostatic discharge clamp is shown, which includes a clamping circuit, a driving circuit, a capacitor and resistor network, and a bias circuit. The clamping circuit has a plurality of transistors connected in a cascode configuration. The driving circuit is coupled to the gates of the transistors of the clamping circuit. The capacitor and resistor network introduces an RC delay in response to an electrostatic discharge event to control the driving circuit to turn on the transistors of the clamping circuit for electrostatic discharging. The bias circuit biases the driving circuit to turn off the transistors of the clamping circuit when the capacitor and resistor network does not detect the electrostatic discharge event.

Abstract: The present disclosure relates to a direct current relay having a mover assembly having improved contact pressure. In one embodiment, a direct current relay comprises a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises: a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; an upper yoke and a lower yoke disposed above and below the movable contactor to generate an electromagnetic force, respectively; and a contact pressure spring disposed between the lower yoke and the mover support, wherein the upper yoke and the lower yoke form a magnetic path to offset an electron repulsive force generated between the fixed contactors and the movable contactor.

Abstract: A method and circuit for determining and extinguishing electrical faults includes a power supply, and electrical load, a controller module, and electrical sensors, and when the controller module does not extinguish the electrical fault, another switch blows a fuse.

Abstract: A system for reducing a specific absorption rate includes a source field generation unit wound with a first cylindrical coil and accommodating a source material therein, and generating a source field by applying a periodic input signal to the first cylindrical coil; a physical property change unit wound with a second cylindrical coil disposed adjacent to the first cylindrical coil and accommodating a transfer target therein, and changing a physical property of the transfer target based on the generated source field; and a target field circuit unit controlling the transfer target to form a target field by a PCB substrate with a power supply interface connected to a power supply and an input of the power supply.

Abstract: Circuits, integrated circuits, apparatuses, and methods, such as those for protecting circuits against electrostatic discharge events are disclosed. An example apparatus comprises a thyristor coupled to a node and configured to limit the voltage and discharge the current associated with an over-voltage event at the node. The over-voltage event includes a negative voltage having a magnitude that exceeds a trigger voltage of the thyristor. The example apparatus further comprising a transistor coupled to the thyristor and configured to adjust the magnitude of the trigger voltage.

Abstract: A power detection circuit is provided. The protection circuit is coupled to a pad and includes a trigger circuit and a discharge circuit. The trigger circuit includes a first transistor of a first conductivity type and a second transistor, also of the first conductivity type, which are coupled in series between the pad and a ground terminal. The trigger circuit detects whether a transient even occurs on the pad. The discharge circuit is coupled between the bonding pad and the ground terminal and controlled by the trigger circuit. In response to the transient event occurring on the bonding pad, the trigger circuit generates a trigger voltage to trigger the discharge circuit to provide a discharge path between the pad and the ground terminal.