Abstract: A mounting frame may be configured as a self-adjusting mounting frame that biases itself against a surface of structure. The mounting frame may be a component, for example, of a remote control device or a faceplate assembly. The mounting frame may be configured to bias a rear surface of the mounting frame against the surface of a structure. The mounting frame may include biasing members. Each biasing member may include an attachment portion and a pair of resilient spring arms that suspend the attachment portion relative to a perimeter wall of the mounting frame such that the attachment portion is spaced further from the rear surface of the mounting frame than locations where the spring arms extend from the mounting frame. The rear surface of the mounting frame may be defined by the perimeter wall.

Abstract: A power converter (10) for operating a first electric machine (12) and a second electric machine (14), comprising: a first converter element (16), a second converter element (18) and a first terminal connection (21), a second terminal connection (22) and a third terminal connection (23) for connecting the power converter (10) to a three-phase energy supply (60), wherein the first converter element (16) comprises a first rectifier circuit (31) and a second rectifier circuit (32), the second converter element (18) comprises a third rectifier circuit (33), wherein the first rectifier circuit (31) has a first AC-side pole (51) and a second AC-side pole (52), the second rectifier circuit (32) has a third AC-side pole (53) and a fourth AC-side pole (54) and the third rectifier circuit (33) has a fifth AC-side pole (55) and a sixth AC-side pole (56), the first rectifier circuit (31) and the second rectifier circuit (32) are connected in parallel on the DC-voltage side and are connected to a common first DC-voltag

Abstract: An electric vehicle power supply includes a housing, a power supply, and a plurality of fasteners. The housing defines an internal cavity and has inwardly protruding tabs that extend into the cavity. The power assembly has a front cover and an end cover. The power assembly also has an array of electrical switching units arranged horizontally between the front and end covers. The front and end covers have outwardly protruding tabs. Each of the plurality of fasteners extend vertically, engage one inwardly protruding tab, and engage one outwardly protruding tab to secure the power assembly to the housing.

Abstract: A consumer product electric power supply is provided and includes a grid power converter that is coupled to a power grid; an energy storage element that is coupled to the grid power converter, which provides an intermediate voltage to the energy storage element; a load power converter that is coupled to the energy storage element and provides constant power to a load; and a power controller that measures a state variable of the grid, wherein the power controller controls the grid power converter based on the state variable of the grid to help stabilize the grid.

Abstract: An interleaved DC-DC converter includes a non-gapped coupled inductor with first, second, and third windings. The converter also includes first, second, and third legs in parallel. The first leg has silicon carbide or silicon nitride switches, and the second and third legs have silicon switches. A controller modulates the switches of the first leg at a frequency greater than a frequency of the switches of the second and third legs.

Abstract: Provided is a power supply control device. The power supply control device includes a plurality of semiconductor switches that are connected in parallel between two power sources and control the supply of power to a load that is connected to the two power sources via the plurality of semiconductor switches, the power supply control device including a temperature detection unit that detects a rise of temperature due to heat that is produced from at least one of the plurality of semiconductor switches, and a switching control unit that executes control that switches the plurality of semiconductor switches from OFF to ON if the temperature detection unit detects a temperature that is at least a threshold temperature.

Abstract: A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.

Abstract: According to one aspect, a UPS system is provided including an input configured to receive AC input power, an output configured to provide AC output power to a load, a rectifier coupled to the input, an inverter coupled to the rectifier and the output, an auxiliary branch coupled to the input and the output, and a controller coupled to the rectifier, the inverter, and the auxiliary branch, and configured to receive voltage information indicative of a voltage level of the AC input power and AC output power, select, based on the voltage information satisfying a first condition, a buck mode of operation, select, based on the voltage information satisfying a second condition, a freewheel mode of operation, and communicate one or more control signals to at least one of the rectifier, the inverter, and the auxiliary branch based on the selected mode of operation.

Abstract: An islanding operation is detected appropriately through interconnection to the power grid which may have various characteristics. A detection apparatus is provided, which includes a frequency parameter calculation unit configured to calculate frequency parameters according to frequencies of power supplied by a power supply, a deviation parameter calculation unit configured to calculate a deviation parameter according to a frequency deviation based on the frequency parameters in a first term and the frequency parameters in a second term earlier than the first term, an islanding operation detection unit configured to detect whether the power supply is in an islanding operation based on the deviation parameter, and a time gap change unit configured to change a time gap between the first term and the second term.

Abstract: The disclosure relates to a motor vehicle having an electric drive, wherein the motor vehicle has an HV primary energy storage device to supply energy to the electric drive, wherein the motor vehicle has at least one predetermined mounting area, which is formed such that an HV alternative energy storage device can be mounted in the mounting area and the motor vehicle is formed with an access opening through which the HV alternative energy storage device can be placed in the mounting area and through which an HV alternative energy storage device mounted in the mounting area can be removed from the motor vehicle.

Abstract: The present disclosure relates to a power distribution unit (PDU) having at least one power receptacle for enabling attachment of an AC power cord of an external device thereto. A branch receptacle controller (BRC) has at least one bistable relay and is associated with the one power receptacle for supplying AC power thereto from an AC power source. The BRC monitors a voltage of an external power source and uses it to detect when AC power is lost, and then toggles the bistable relay, if the relay is in a closed position, to an open position.

Abstract: A power harvesting system including multiple parallel-connected photovoltaic strings, each photovoltaic string includes a series-connection of photovoltaic panels. Multiple voltage-compensation circuits may be connected in series respectively with the photovoltaic strings. The voltage-compensation circuits may be configured to provide respective compensation voltages to the photovoltaic strings to maximize power harvested from the photovoltaic strings. The voltage-compensation circuits may be include respective inputs which may be connected to a source of power and respective outputs which may be connected in series with the photovoltaic strings.

Abstract: An energy distribution system. The energy distribution system has a housing with a rear terminal and a front terminal. An inlet unit receives air therethrough. The inlet unit then passes the air through a one-way valve into a reservoir where the air molecules undergo ionization. Once ionized, the gaseous air is converted into a plasma state. After being converted into the plasma state, electric energy is generated by a pair of magnets and stored in a capacitor.

Abstract: A variable magnetic field in which a power-supplying coil and a power supplying resonator exist is generated only by the power-supplying coil. Power-supplying coils and each of which generates a variable magnetic field due to the supply of a variable current via a first current path on one coil end a side and a second current path on the other coil end side; resonance capacitors which are provided on the first current path and the second current path; and a power-supplying coil short-circuit mechanism which is able to cause at least one of the power-supplying coils and to function as a power supplying resonator by allowing the end portions and of the first current path and the second current path to short-circuit with each other are provided.

Abstract: A system power monitor circuit and method implemented in a system including multiple power supplies measures and scales the power supply output current value at each power supply as a ratio of the power supply output voltage and a reference voltage. Scaled power supply output current values are combined to provide a single system current signal that is referenced to the same reference voltage value being the system voltage signal. The system power is determined from the system current signal and the system voltage signal. In some embodiment, a power supply output voltage of a selected power supply is used as the reference voltage.

Abstract: An in-vehicle power supply apparatus supplies power to an external load while bypassing the occurrence of an overcurrent, even when there is a failure on a main battery side or a failure on a sub-battery side includes a main battery and a sub-battery and two relays. One of the relays is connected to the main battery via the other relay, and transitions from a closed to an open state when an overcurrent flows thereto after the other relay transitions from the closed state to the open state. The other relay transitions from the closed state to the open state when an overcurrent flows thereto. The sub-battery is connected to the main battery via both of the relays. The main battery is connected to a backup load, bypassing both of the relays. A sub-power supply path connects the sub-battery and the backup load via the one relay.

Abstract: Accessory device for a low or medium voltage switching device including an outer housing, first electrical connection means adapted to electrically connect the accessory device with an auxiliary power line and first mechanical connection means adapted to mechanically connect the accessory device with a mechanical support component of the switching device. The accessory device includes a power line communication unit electrically connectable with the auxiliary power line through the first electrical connection means and adapted to communicate with outer electronic equipment electrically connected with the auxiliary power line by transmitting and receiving communication signals along the auxiliary power line.

Abstract: A rectifier circuit rectifies the current that flows through a reception coil. A smoothing capacitor is coupled to the output of the rectifier circuit. A power supply circuit stabilizes the rectified voltage VRECT that occurs across the smoothing capacitor, and supplies the rectified voltage thus stabilized to a load. A dump circuit sinks the first dump current IDUMP from the output of the power supply circuit. A current detection circuit detects the current IOUT that flows through the power supply circuit, and generates a current detection signal S11 that indicates the amount of the current.

Abstract: A semiconductor device includes a plurality of switching elements electrically connected in parallel with each other, a control unit that outputs a control signal for controlling a current supplied to each of the switching elements, and a temperature estimation unit that estimates a temperature difference between the switching elements. When an estimated temperature difference becomes equal to or higher than a predetermined threshold temperature, the control unit shifts an operation mode to a stop mode for stopping driving of a switching element having a temperature higher than the other.

Abstract: Systems for converting a standard direct current (DC) power from solar panels into a rectified DC power signal for further conversion into alternating current (AC) power are described herein. In some example embodiments, the systems may include distributed power converters and a grid interface unit connected by a trunk cable. In some example embodiments, the power converters may be embedded in the trunk cable.