Abstract: Integrated magnetics techniques for incorporating inductor, coupled inductor, and/or transformer functions of power electronics and high frequency circuits onto small, integrated structures, while maintaining a high quality factor and a high inductance density. The integrated magnetics techniques include incorporating magnetic vias into the inductive elements to form closed magnetic loops for reducing the reluctance to magnetic flux, while increasing the inductance of the inductive elements.

Abstract: In earth leakage detection device, one end of coupling capacitor is connected to a current path of power storage unit connected to load in a state of being insulated from the ground. Voltage output unit generates a periodically changing periodic voltage, and applies the periodic voltage to the other end of coupling capacitor via first resistor. Second resistor and third resistor are connected in series between a node between coupling capacitor and first resistor and a predetermined fixed potential. Voltage measurement unit measures a voltage at a voltage dividing point between second resistor and third resistor. Earth leakage determination unit determines presence or absence of an earth leakage between the current path of power storage unit and the ground based on the measured voltage.

Abstract: The power transmitter (101) providing power to a power receiver (105) comprises a communicator (309) communicating with the power receiver (105) and a negotiator (305) negotiating a guaranteed power level with the power receiver (105) prior to a power transfer phase. The guaranteed power level is a minimum power level guaranteed by the power transmitter (101) throughout the power transfer phase. During the power transfer phase, a determiner (307) dynamically determines an available power level based on the prevailing operating parameters. The available power level is one that can currently be provided but is not guaranteed. The power controller (309) is arranged to, during the power transfer phase, increase the power level above the guaranteed minimum level in response to power control messages, and to reduce the power level regardless of the power control messages in response to a detection that the power level exceeds the available power level.

Abstract: A PWM-based (pulse width modulation-based) overcurrent protection circuit and an operating method for the same are provided. The PWM-based overcurrent protection circuit includes a pulse-width-modulation circuit that is connected to a charge pump and a load detection circuit of a power-switch circuit. The charge pump outputs a voltage to the power-switch circuit according to a clock-voltage signal. The load detection circuit is used to detect an overcurrent flowing through the power-switch circuit according to a load at an output end of the power-switch circuit. Thus, when the load detection circuit detects the overcurrent, the pulse-width-modulation circuit controls a duty-cycle width of the charge pump, so as to suppress the voltage outputted by the charge pump. Therefore, an output voltage from the power-switch circuit can be corrected for preventing or reducing the overcurrent.

Abstract: A light switch cover for converting a standard toggle switch into a remote-controlled toggle switch.

Abstract: A method for controlling a power system having at least one inverter-based resource connected to an electrical grid includes monitoring, via at least one controller of the at least one inverter-based resource, one or more command signals issued by a system-level controller. The method also includes determining, via the at least one controller of the at least one inverter-based resource, whether the one or more command signals issued by the system-level controller includes oscillatory behavior characteristic of an instability. In response to determining that the one or more command signals issued by the system-level controller includes oscillatory behavior characteristic of the instability, the method includes reducing one or more gains of a volt-var regulator of the system-level controller to reduce the instability.

Abstract: A relay drive control device is configured to control drive of a relay for connecting a battery mounted on a vehicle and an external power supply. The relay drive control device includes a controller configured to, when driving the relay, supply an output voltage of the battery to the relay after increasing the output voltage to a voltage value at which the relay is drivable.

Abstract: An electronic device for simulating load currents when testing a tow-vehicle brake controller is described. The electronic device utilizes current monitoring circuitry to measure a current of an input signal from the tow vehicle. The electronic device also includes a series of resistors that are arranged in parallel on the input signal as wells a series of switches (e.g., relays or transistors) that can activate and deactivate each one of the resistors. Microcontroller circuitry within the electronic device controls the series of switches based on the measured current of the input signal, and, by extension, controls the series of resistors applied to the input signal. In so doing, the electronic device is able to simulate a desired load current on the tow-vehicle brake controller being tested.

Abstract: An electrical over stress protection device is provided. A detection circuit detects an input voltage from a pad, provides a first discharge path when the input voltage is higher than a preset voltage, and provides a turn-on voltage to a discharge protection circuit to control the discharge protection circuit to provide at least one second discharge path.

Abstract: Provided is a power source system that can more easily realize a configuration that can support a plurality of charging methods and supply a relatively high voltage and a relatively low voltage based on power from a battery. A power source system is a system that is to be installed in a vehicle including a travel motor, and into which a charging current flows via a charging path when receiving supply of power from an external apparatus provided external to the vehicle. The power source system includes a first conductive path and a second conductive path that are electrically connected to the charging path and branch from the charging path, a first relay that is provided on the first conductive path, and a first DC/DC converter that performs voltage conversion.

Abstract: A housing and/or installation frameworks for a modular multi-level energy system includes a set of similar cabinets configured for orthogonal (e.g., vertical and horizontal) alignment of the modules. The cabinets are configured so modules of a particular phase are oriented along an axis parallel to a reference plane. Modules of the same level of the multi-level arrangement but of different phases are mounted in each cabinet, arranged such that a module for each phase is a defined distance from the reference plane. The cabinets are arranged equidistant and orthogonal to the reference plane, minimizing distance for connections between modules of the same phase across multiple cabinets, and facilitating convenient addition or removal of levels. The framework also facilitates data and reference signal connections between local control devices of the modules, and between the local control devices and a master control device for the system.

Abstract: In a communication system, a control unit and driver units are connected in a daisy chain; each unit includes a corresponding insulated communication circuit, respectively. The control unit measures a communication delay time between the control unit and each driver unit from a response time to transmission of a pulse signal performed to each driver unit during a measurement period. Then, based on each communication delay time, the control unit transmits a shift time to each driver unit for equalizing the timing of signals output by the driver units. When each driver unit receives, from the control unit, an instruction instructing each driver unit to output a signal, each driver unit outputs the signal when the shift time has elapsed.

Abstract: A wireless-controlled smart plug device and methods of use and operation, using a solid state switch to provide electrical power from an outlet to a load, and provide protection against overload, short circuit, ground, arc, or voltage surge faults. The switch includes a bidirectional semiconductor switch with two back-to-back connected transistors, such as silicon power MOSFETs, silicon insulated-gate bipolar transistors (IGBTs), silicon carbide (SiC) transistors, or gallium nitride (GaN) transistors, each configured to control the current flow from the electrical receptacle to the external electrical load.

Abstract: A power source control device that includes: a make-and-break relay configured to either make or break conduction between a first terminal of a load and a first electrode of a direct current power source; a dark current generation circuit configured to generate a dark current by lowering a voltage of the direct current power source, in a state in which a first terminal is connected to the first electrode of the direct current power source and a second terminal is connected to the first terminal of the load so as to be parallel to the make-and-break relay; and a bypass circuit configured to dissipate some of power supplied from an external charger by making conduction between a second electrode of the direct current power source and the first terminal of the load in response to the direct current power source being charged by the external charger.

Abstract: A wireless power receiver system includes a receiver antenna including a plurality of receiver coils, each of the plurality of receiver coils configured to receive alternating current (AC) wireless power signals from a wireless power transmission system. The system further includes a receiver controller configured to generate communications signals. The system further includes a plurality of modulation circuits, each of the plurality of modulation circuits operatively associated with one of the plurality of receiver coils and the receiver controller, each of the plurality of modulation circuits configured to partially dampen a magnetic field, coupling the wireless power receiver system with the wireless power transmission system, based on the communication signals provided to each of the plurality of modulation circuits by the receiver controller.

Abstract: An apparatus includes a current-based temperature compensation circuit having a reference buffer, a biasing current mirror, and a controller. The reference buffer is configured to receive a biasing reference voltage at a voltage input terminal and replicate the biasing reference voltage to first and second buffer terminals. At least one of the first and second buffer terminals is configured to be electrically connected to at least one gate terminal of an analog complementary metal oxide semiconductor (CMOS) physically unclonable function (PUF) cell. The biasing current mirror is configured to receive a reference current at a current input terminal and replicate the reference current to the first buffer terminal. The controller is configured to compensate an output of the CMOS PUF cell for temperature variation based on a weighted sum of a bandgap current, a current proportional to absolute temperature, and a current complementary to absolute temperature.

Abstract: Techniques for distributing electrical power to a plurality of electrical loads can include coupling an existing group of electrical loads to a common power source through a load management system, measuring an aggregate group current drawn by at least the existing group of electrical loads and comparing the measured aggregate group current to an aggregate group current threshold value. When the measured aggregate group current exceeds the aggregate group current threshold value, increase a number of subgroups of the existing group, using subgroups that are formed without requiring information about individual current associated with the individual electrical loads, sequentially apply power to individual subgroups during non-overlapping time periods, sequentially measure at least a corresponding current drawn by the individual subgroups while power is applied to the subgroups, and sequentially comparing the measured current to a threshold value.

Abstract: The disclosure relates to a method for determining a characteristic curve for a photovoltaic (PV) string of a photovoltaic system having an inverter which is connected to the photovoltaic string and to a power supply network. The photovoltaic string includes a series connection of a plurality of photovoltaic modules, in which series connection at least one of the photovoltaic modules is integrated into the series connection of the photovoltaic modules via a DC/DC converter. The at least one DC/DC converter operates the photovoltaic module assigned thereto in a first operating mode M1 at a maximum power point by varying, over time, a conversion ratio of output voltage (UOut) to input voltage (UIn), and operates the photovoltaic module in a second operating mode M2 with a conversion ratio of output voltage (UOut) to input voltage (UIn) that is constant over time.

Abstract: An implantable medical system includes an implantable medical device and a external charger. The implantable medical device includes a rechargeable power source, electronic components coupled to the rechargeable power source to deliver a therapy to or monitor a parameter of a patient, and a recharge system operably coupled to the rechargeable power source including a secondary coil to receive power via an inductive power transfer. The external charger includes a housing forming an internal compartment, recharger electronic components disposed on a printed circuit board assembly in the internal compartment, and a recharge coil assembly disposed within the internal compartment, the recharge coil assembly including a recharge coil to provide power to the secondary coil via the inductive power transfer and a flux guide having a ferrite sheet disposed between the recharge coil and the printed circuit board assembly.

Abstract: A mobility system includes: one or more controllers; one or more batteries; a switching device configured to switch connections between the one or more controllers and the one or more batteries; and a processor configured to control an order of update target controllers among the one or more controllers and batteries to supply power to the update target controllers among the one or more batteries by controlling the switching device based on at least one of relative importance of the one or more controllers, a present state of the one or more batteries, or a vehicle driving state.