Abstract: A cable stripper may be provided. The cable stripper may comprise a stripper body, a trigger assembly, a cable support body, and a blade. The trigger assembly may be slidably engaged within the stripper body. The trigger assembly may comprise a trigger assembly block. The cable support body may be attached to the stripper body. The blade may be attached to a front of the stripper body and enclosed by the cable support body. The blade may extend into a cable opening in the apparatus. The trigger assembly block may press a cable against the blade. The cable may be in the cable opening. The blade may extend into a jacket of the cable without extending to a conductor of the cable.

Abstract: A wire harness protector includes a bottom panel, a first side panel rising from one edge of the bottom panel, and a second side panel rising from another edge of the bottom panel. The bottom panel, first side panel, and second side panel demarcate an accommodation route that accommodates a main line of a wire harness. The first side panel is provided with a notch through which a branch line that branches from the main line is drawn out to an exterior of the accommodation route. A surface of the first side panel that faces the accommodation route is a route forming surface, and a projecting portion projects from the route forming surface.

Abstract: One aspect is a feedthrough for a medical implantable device including a ferrule having a metal that is configured to be welded to a case of the implantable device. The ferrule substantially surrounds an insulator and shares an interface therewith, the insulator having a glass or ceramic material. Conductive elements are formed through the insulator providing an electrically conductive path through the insulator. There is no braze or solder at the interface between the ferrule and the insulator and that there is no braze or solder adjacent the conductive elements.

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 method for monitoring a compressor includes measuring a power factor of a motor of a compressor. The method includes selectively detecting an occurrence of a fault event of an electrical grid based on the power factor. The method includes, in response to detecting that the fault event has occurred, switching the compressor from a first state to a second state. The compressor consumes less power in the second state than in the first state. The method includes identifying an apparent conclusion of the fault event. The method includes, in response to the apparent conclusion of the fault event, waiting for a first delay period before switching the motor of the compressor back to the first state.

Abstract: In a three-level chopper apparatus, a protection switch circuit is controllable to change a current pathway through which an overvoltage is applied to a second capacitor or a first capacitor to a current pathway through which no overvoltage is applied to the second capacitor or the first capacitor.

Abstract: A calibration circuit according to various aspects of the present invention comprises a battery pack, a protection IC, and a power source. The power source may have a predetermined voltage and may be selectively coupled to the protection IC. The power source may be capable of providing a current to the protection IC through one of a first current loop and a second current loop, wherein the current through the first current loop generates a first voltage across a first and second terminal of the protection IC, and the current through the second current loop generates a second voltage across the first and second terminals that is substantially equal to the voltage of the power source.

Abstract: A direct current switch-off device comprises an on-state current branch circuit and a current commutating and breaking unit which are connected in parallel. The on-state current branch circuit has a mechanical switch (S) and a current transfer module which are connected in series. The current commutating and breaking unit comprises a bridge-type branch circuit and a current-breaking branch circuit. The current-breaking branch circuit and two bridge arms of the bridge-type branch circuit are connected in parallel. The current-breaking branch circuit comprises a nonlinear resistor (RI) and a valve group consisting of fully-controlled devices connected in series. The nonlinear resistor (RI) and the valve group are connected in parallel. Two ends of each fully-controlled device in the valve group are connected in parallel with a buffering and reclosing circuit.

Abstract: A fault protection system for an electrical power distribution system and a method of configuring and operating a fault protection system for an electrical power distribution system accepts device fault protection parameters, such as the time-current-characteristics (TCC's), of boundary devices, and selects and sets fault protection parameters for one or more fault protection devices, such as fault-interrupters, that thus coordinate with the boundary devices. Fault protection parameter selection for each fault protection device may occur automatically, and each device may reconfigure its fault protection parameters based upon changes in the electrical power distribution system, for example, as the result of fault isolation and/or service restoration.

Abstract: A novel system is offered for supplying power from an input node to a load coupled to an output node. The system may have multiple switches coupled between the input node and the output node. One or more limiting circuits may be configured for controlling the switches so as to limit outputs of the switches. For example, the limiting circuits may limit current through the respective switches. One or more timers may set a delay period for indicating a fault condition after the limiting is initiated.

Abstract: A safety protection circuit is described, comprising a fuse, a first voltage detection circuit, a first Silicon-Controlled Rectifier, SCR, wherein the first SCR is triggered upon detection of a threshold voltage by the first voltage detection circuit, a second voltage detection circuit, and a second SCR, wherein the second SCR is triggered upon detection of a threshold voltage by the second voltage detection circuit.

Abstract: A surge protection device includes: a pair of terminal fittings to be connected to a pair of power supply terminals of a field device together with a power supply cable; a circuit board on which a surge protection element is mounted, the surge protection element including two electrodes connected to the pair of terminal fittings and a ground electrode configured to cause a surge current to flow to a ground when a surge voltage is applied between the two electrodes; an earth wiring cable connected to the ground electrode; and a main body that houses the circuit board, the main body being configured such that the pair of terminal fittings and the earth wiring cable protrude from an inside of the main body to an outside.

Abstract: Detecting electrostatic discharge (“ESD”) events in a computer system, includes: determining, from an ESD detector installed in the computer system, that an ESD event has occurred; identifying a component of the computer system within a predefined proximity to the ESD detector as possibly affected by the ESD event; and notifying a user of the computer system of the component possibly affected by the ESD event.

Abstract: A power management integrated circuit includes pairs of high-side and low-side drivers, sensing circuitry, and a processor. The high-side and low-side drivers are used in combination with external discrete NFETs to drive multiple windings of a motor. The N-channel LDMOS transistor of each high-side driver has an associated isolation structure and a tracking and clamping circuit. If the voltage on a terminal of the integrated circuit pulses negative during a switching of current flow to the motor, then the isolation structure and tracking and clamping circuit clamps the voltage on the isolation structure and blocks current flow from the substrate to the drain. An associated ESD protection circuit allows the voltage on the terminal to pulse negative. As a result, a large surge of current that would otherwise flow through the high-side driver is blocked, and is conducted outside the integrated circuit through a body diode of an external NFET.

Abstract: In the examples provided herein, an electrostatic discharge (ESD) recording circuit has a first memristive element coupled to a pin of an integrated circuit. The first memristive element switches from a first resistance to a second resistance when an ESD event occurs at the pin, and the first resistance is less than the second resistance. The ESD recording circuit also has shunting circuitry to shunt energy from an additional ESD event away from the first memristive element.

Abstract: An apparatus includes a processor to: assign each value of each set of values of an initial supply meter data and of an initial load meter data to one of multiple buckets based on weather conditions and/or time and date; for each bucket, generate upper and lower bounds of power provision and power consumption values, and use the upper and lower bounds to identify outlier values assigned to the bucket; for each set of values within the initial supply meter data and within the initial load meter data, generate a naive model from the non-outlier values, and use interpolation and the naive model to fill in gaps, thereby generating cleansed supply meter data and cleansed load meter data; and store the cleansed supply meter data and cleansed load meter data together as merged meter data for use in making predictions.

Abstract: An abnormality detection device for a grid interconnection relay to detect an abnormality of the grid interconnection relay upon switching to grid independent operation, and includes an abnormality detector to execute commercial power system voltage determination of determining whether or not there is a commercial power system voltage, and first voltage determination to be executed if it is determined that there is no commercial power system voltage through the commercial power system voltage determination, of causing the power conditioner to chronologically alternately output monitor voltages having different values in a state where a contact of the grid interconnection relay is controlled to open and executing abnormality determination as to the grid interconnection relay according to whether or not each of the monitor voltages is followed by difference between a voltage of the power conditioner and voltage of the commercial power system with respect to corresponding one of the monitor voltages.

Abstract: A power switch configured to apply power to a device is described. The power comprises a switching module having a switch for selectively applying power to a device based upon control signals; and a control module removably coupled to the switching module and in communication with the switching module when the control module is attached to the switching module; wherein the control module comprises a wireless communication circuit and provides the control signals to the switching module to enable a switching operation of the power switch. A method of implementing a power switch configured to apply power to a device is also described.

Abstract: Active impedance-injection module enabled for distributed power flow control of high-voltage (HV) transmission lines is disclosed. The module uses transformers with multi-turn primary windings, series-connected to high-voltage power lines, to dynamically control power flow on those power lines. The insertion of the transformer multi-turn primary is by cutting the line and splicing the two ends of the winding to the ends of the cut high-voltage transmission line. The secondary winding of the transformer is connected to a control circuit and a converter/inverter circuit that is able to generate inductive and capacitive impedance based on the status of the transmission line. The module operates by extracting power from the HV transmission line with the module floating at the HV transmission-line potential. High-voltage insulators are typically used to suspend the module from transmission towers, or intermediate support structures. It may also be directly suspended from the HV transmission line.

Abstract: A distributed energy resource (DER) may store electrical power from an AC circuit and discharge stored electrical power to the AC circuit. A DER may be coupled to the AC circuit via a plug inserted into a receptacle coupled to the AC circuit, and a load device may be plugged into the DER via a receptacle of the DER. The DER may pass AC power from the AC circuit to the load device, and may draw additional power from the AC circuit to charge an energy storage circuit of the DER. The DER may also discharge stored energy into the AC circuit and/or power the load device directly.

Abstract: The present invention discloses a passive islanding to grid-connection switching method for a VSC HVDC transmission system. When the VSC HVDC transmission system in an island operation state, whether the VSC HVDC transmission system enters an grid-connection state is determined by detecting whether an overcurrent phenomenon has occurred in a converter valve-side three-phase alternating-current or a converter bridge arm current, and detecting a change status of an alternating-current side voltage. The system is controlled to switch from an island operation control mode to a grid-connection control mode. At a moment of switching, the online control mode is smoothly switched to by changing a power instruction and performing phase tracking on a current grid voltage, so that continuous operation of the system is maintained.

Abstract: A method of synchronization comprises receiving, at a first generator set, data indicating a characteristic for a component of a voltage for a source, and receiving, at a second generator set, the data indicating the characteristic for the component of the voltage for the source. The method also includes calculating, by each of the first and second generator sets, a speed offset parameter and a voltage offset parameter based on the received data. The first and second generator sets are configured to receive the same data indicating the component and independently calculate the same speed offset parameter and voltage offset parameter. The method further includes controlling operation of the first and second generator sets based on the calculated speed offset and voltage offset parameters.

Abstract: Improved techniques for photovoltaic power generation are described. Inverter failure is can be a significant problem in solar photovoltaic systems as it can lead to loss of opportunity to harvest energy. A solar photovoltaic (PV) power generation system is described comprising solar PV panels and power conditioning units. A dc power distribution bus is coupled to the solar PV panels and the power conditioning units to switchably share dc power from the solar PV panels between the power conditioning units. Power distribution controllers detect a faulty power conditioning unit and reroute power from a solar PV panel coupled to the faulty power conditioning unit to other power conditioning units via the dc distribution bus.

Abstract: This power control system (100) includes a power generation apparatus (33) that generates, while a current sensor (40) detects forward power flow equal to or greater than a threshold, power corresponding to a value detected by the current sensor, and a power control apparatus (20) that controls distributed power sources. The power control apparatus is connected to a dummy current output unit capable of supplying the current sensor with dummy current. The control method includes, in a state of constant current flowing to a load from the power generation apparatus and the power control apparatus for a predetermined time, a first step of the power control apparatus increasing the dummy current from the dummy current output unit stepwise, and after the first step, a second step of storing, as the threshold, a minimum of the forward power flow when output voltage of the power generation apparatus rises.

Abstract: A power supply apparatus of the disclosure is interconnected to the grid together with a power generation apparatus, and configured to control a solar cell and a storage battery. The power supply apparatus includes an inverter for converting DC power from the solar cell and the storage battery into AC power, a first relay for switchover a connection between the inverter and the grid, an AC-DC converter capable of converting AC power from the power generation apparatus into DC power and supplying the DC power to the storage battery during an grid-independent operation, and a controller for controlling such that, at the time of recovery of the grid from the power outage, the AC-DC converter starts operating, that the first relay is switched on, and that the AC-DC converter keeps operating until a reverse power flow to the grid is detected.

Abstract: A PCS comprises a DC/DC convertor that converts a voltage of a DC power input from a solar cell; an inverter that converts the DC power to an AC power; and a controller 134 that stops an operation of the DC/AC convertor without stopping the inverter when a condition that stops an output of the solar cell is satisfied.

Abstract: A method to co-optimize the energy production and frequency regulation of power generation systems. A three-level co-optimization model is used to determine the day-ahead unit commitment schedule considering the impacts of real-time generation dispatch and frequency regulation. Generation upward and downward regulation speed constraints are added to represent the system requirements for generation quick responses, and the actual regulation performance is also taken into account through the simulation of primary generation control.

Abstract: A power transmission system includes: a power transmitter connected to a power supply; a plurality of power receivers respectively connected to a plurality of loads; a power transmission line connecting the power transmitter and the plurality of power receivers; and a controller. The controller acquires information on optimum power for maximizing transmission efficiency in the power transmission line and information on power demands requested by the loads, and routes transmission power from the power transmitter selectively to the plurality of power receivers. The transmission power is equal to or smaller than the optimum power. When a total power demand is larger than the optimum power, the controller requests another controller to supply supplementary power. When the total power demand is smaller than the optimum power, the controller notifies the other controller that surplus power is available.

Abstract: Systems and methods that can be retrofitted into an existing wired electrical system replacing existing switches whether as a standalone single switch or part of a multi-way switch configuration that can be controlled locally nominally by touch, controlled remotely by a remote, or controlled remotely by a computer. The systems and method provide that the switches establish a local network allowing for retrofit or construction of a structure or facility with electrical system automation without the need for additional wiring.

Abstract: A voltage balancing circuit is applied to a power supply system. The power supply system comprises N power storage devices. The voltage balancing circuit comprises: N switches, N capacitors and a controller; the N switches are respectively connected to the N serial power storage devices; the N switches are respectively connected to the first terminals of the N capacitors; the second terminals of the N capacitors are connected to a common neutral line; the controller is connected to the N switches through a control line to control the switching of the N switches. The voltage balancing circuit avoids power loss when balancing the voltage of a plurality of serial power storage devices, and is small in size and low-cost, and balances voltage quickly.

Abstract: A battery device having a chargeable and dischargeable battery; a detection unit that detects a state of the battery; and a control unit. The control unit calculates a value of a maximum charging current that can be supplied to the battery during charging of the battery on the basis of the state of the battery detected by the detection unit, and notifies a result of such calculation to a charging device.

Abstract: An electricity storage system includes: a plurality of rechargeable batteries connected in parallel; and a control unit that controls the rechargeable batteries. The control unit detects a deactivation target rechargeable battery of which charge or discharge need to be deactivated, of the rechargeable batteries, electrically separates and deactivates the deactivation target rechargeable battery from a load in a case where a charging rate of the deactivation target rechargeable battery is lower than a predetermined charging rate, and performs control such that a temperature of the deactivated rechargeable battery is within a predetermined temperature range. In this manner, it is possible to disperse ions inside a battery such that it is possible to recover performance of the battery.

Abstract: A particular embodiment of a storage system includes at least one storage device. The storage device can store working clothing. The storage system further includes a wired and/or wireless charging device. The wired and/or wireless charging device can transmit electrical energy to an energy storage unit of the work clothing. The wired and/or wireless charging device can charge different work-clothing items of the work clothing. The work clothing can be disposed in the storage device. The storage system further includes a sensor device that can sense a characteristic variable of the work clothing.

Abstract: A device includes a charger case. Charging electronics are supported within the case. An electrical connector is coupled to the charging electronics for coupling to a power source. A cooling element is coupled to the charger case and extendable to an extended position from the case such that a cooling surface area of the charger case is increased.

Abstract: Systems for landing and facilitating power flow or data transfer between an unmanned aerial vehicle (UAV) and a charging mat using a boom are described. The system includes a mat with a conductive mesh on the top and a conductive surface on the other bottom of the mat. The conductive mesh and bottom conductive surface are separated (electrically isolated) by an isolation core. The outer portion of the boom contacts part of the conductive mesh of the mat to create an electrical pathway. An inner portion of the boom penetrates through the top layer conductive mesh, through the isolating core, and contacts the bottom conductive surface of the mat to create another electrical pathway.

Abstract: An interactive surgical device storage and supply cart is provided and includes a top storage assembly having multiple storage containers for various size product packages, a bottom storage assembly having drawers to retain larger packages of sterilized devices and an intermediate shelf having storage trays for frequently used items. One or more batter chargers are provided on the cart to supply fully charged batteries. A docking station is provided on the cart to receive computers for inventory management and display instructional material. The docking station also can receive communication devices for consultation with outside sources in real time. Additionally, a power strip is provided to power the battery charger (s) and docking station as well as other auxiliary, powered devices and instruments.

Abstract: A frequency response optimization system includes a battery configured to store and discharge electric power, a power inverter configured to control an amount of the electric power stored or discharged from the battery, and a frequency response controller. The frequency response controller includes receiving a regulation signal from an incentive provider, determining statistics of the regulation signal, using the statistics of the regulation signal to generate a frequency response midpoint, and using the frequency response midpoint to determine optimal battery power setpoints for the power inverter. The power inverter is configured to use the optimal battery power setpoints to control the amount of the electric power stored or discharged from the battery.

Abstract: A frequency response controller includes a high level controller configured to receive a regulation signal from an incentive provider, determine statistics of the regulation signal, and use the statistics of the regulation signal to generate a frequency response midpoint. The controller further includes a low level controller configured to use the frequency response midpoint to determine optimal battery power setpoints and use the optimal battery power setpoints to control an amount of electric power stored or discharged from a battery during a frequency response period.

Abstract: A power source apparatus includes a power source section configured to output a current comprising a preset current value as a power supply current after reducing a voltage value of a power supply voltage in case the power supply current reaches a preset current value, a first protection section configured to stop operation of the power source section if the power supply voltage stays below a first voltage value until lapse of a first period subsequent to establishment of connection between a mobile terminal device and a power supply terminal, and a second protection section configured to cause the power source section to output a power supply voltage of a voltage value based on instruction information by a second time interval if the voltage value of the power supply voltage falls below a second voltage value after reaching a target voltage value.

Abstract: The present disclosure discloses a charging system and method, and a power adapter. The system includes a power adapter and a terminal. The power adapter includes a first rectifier, a switch unit, a transformer, a synthesizing unit, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a current sampling value and/or a voltage sampling value, such that a second alternating current outputted by the synthesizing unit meets a charging requirement. The terminal includes a battery.

Abstract: Systems and methods for limiting battery discharge based on battery temperature are disclosed. In an example, a controller sets a current limit, using battery temperature, and provides corresponding current limits to a power management device and a system-on-chip (SOC). Upon battery discharge current exceeding the discharge current limit, the controller increases the discharge current limit, and provides updated current limits to the PM device and the SOC. Upon the battery temperature exceeding a battery pack maximum temperature, the controller issues a shutdown command to the PM device and the SOC.

Abstract: Disclosed herein are a wireless charging apparatus and a wireless charging method capable of avoiding a cross connection. A wireless charging apparatus, including: a controller receiving voltage range information from a mobile terminal and generating voltage pattern information corresponding to the voltage range information; a power converter generating authentication power having a predetermined voltage pattern corresponding to the voltage pattern information; and a resonator transmitting the authentication power to the mobile terminal.

Abstract: According to various embodiments of the present disclosure, disclosed is a wireless power charging apparatus that includes a transparent dielectric body including a cavity for accommodating an electronic device, a transparent conductor provided on a wall of transparent dielectric configured to substantially block wireless power to outside the cavity, and at least one frequency filtering region disposed in the transparent conductor configured to perform at least one of pass a communication frequency of the electronic device and substantially block the wireless power to outside the cavity.

Abstract: A portable power charger is provided for charging one or more electronic devices from a rechargeable internal battery. The portable power charger is attachable to the surface of an electronic device via an attachment means located on the charger housing. The portable power charger includes at least one power connection for connecting the charger with an external power source, or at least one electronic device, or both, for direct charge connectivity. The power connection can be a power connection port or a power connector cable, attached to the charger housing, each capable of acting as a power input, a power output, or both. The portable charger also includes wireless power transmission components, such as a transmitter and a receiver, for recharging the charger as well as electronic devices via wireless power transmission methods.

Abstract: An inductive charger comprising an inductive charging coil for providing energy to a inductive receiving coil; and a fuel cell configured to provide electricity to the inductive charging coil.

Abstract: A wireless power receiver is coupled to an impedance matching network, the impedance matching network having a first node and a second node. Coupled to the first node is a first branch having a first positive reactance and a second branch having a first negative reactance, wherein an absolute value of the first positive reactance is different from an absolute value of the first negative reactance, and coupled to the second node is a third branch having a second positive reactance and a fourth branch having a second negative reactance, wherein an absolute value of the second positive reactance is different from an absolute value of the second negative reactance.

Abstract: Apparatus, methods and systems of wireless power distribution are disclosed. Embodiments involve the redirection of collimated energy to a converter, which stores or converts the energy into a more suitable form of energy for at least one specific point-of-use that is coupled to the converter.

Abstract: Methods, systems, and products describe a car, truck, or other vehicle that charges a battery in a mobile device. The vehicle wirelessly inductively charges the battery based on historical usage.

Abstract: Systems and methods to wirelessly transmit power are provided. A power delivery system may include a central controller assembly and a transmit assembly. The central controller assembly can form transmit coils in the transmit assembly. The central controller assembly can also receive information from devices coupled to the transmit assembly and optimize the transmit coils based on the received information and on information about the transmit assembly.

Abstract: Systems and methods are described herein for providing automotive type transient protection of a solar charge source. In one embodiment, a system is provided that includes a load and a solar charge source for providing DC power to the load. The solar charge source including a solar charge controller including an automotive type transient suppression module configured to provide automotive type transient protection for the solar charge source from an automotive type transient.