Abstract: A signal transmission system includes a switch component and a choke component each coupled to one of a first power wire and a second power wire, a first conductive path between the switch component and a load, a second conductive path between the choke component and the load, and a control block. The control block controls the switch component to not conduct when providing a control signal to the first and/or second conductive paths. When the switch component does not conduct, a magnetic core of the choke component does not reach magnetic saturation. When the switch component conducts, the magnetic core of the choke component operates at magnetic saturation.

Abstract: An uninterruptible power control method includes the steps of: reading a detection result from a motion sensor of an electronic device, determining whether the detection result meets a movement condition, and turning on a power supply path of a sub-battery module of the electronic device when the detection result meets the movement condition. The electronic device is powered by a primary battery module in normal state, and the sub-battery module is built in the electronic device.

Abstract: According to one embodiment, a drive device drives “N” number (N is an integer of “2” or greater) of inverters to generate AC power and transmit respective AC power to transmission coil units corresponding thereto and includes a switching signal generation circuit. The switching signal generation circuit generates switching signals to drive first to fourth switching elements of each inverter to complementarily drive the first switching element and the second switching element, and complementarily drive the third switching element and the fourth switching element so that a phase difference between an output current of an “M”th (“M” is an integer of 2 or greater and “N” or below) inverter and an output current of an “M?1”th inverter becomes or approach “360×L/N” degrees (“L” is an integer of “1” or greater and less than “N”) and supplies the switching signals to the first to fourth switching elements of the inverters.

Abstract: A power receiving portion is installed in a middle in a vehicle width direction at a front portion on a lower surface of a floor panel close to steered front wheels. Therefore, the power receiving portion can be accurately aligned with a power supply portion on the road surface side so as to face each other with a sense of steering in such a manner as to align the center of a vehicle with the power supply portion when the vehicle advances to a predetermined stop position in a parking space. Moreover, a high-current system wire harness for transmitting electric power from a battery located on the lower surface of the floor panel to a motor unit in a front compartment passes above the power receiving portion so as to improve the safety of the wire harness.

Abstract: Aspects of the present disclosure involve a circuit for delivering electrical power from a direct current voltage source to an electronic system. The circuit may include a power injection circuit that injects a first portion of the power from a supply voltage of the source to a first data line and a second portion of the power from the supply voltage to a second data line. The power injection circuit may include first and second conductive paths from the supply voltage to the first and second data lines having first and second inductances, respectively, as well as a third conductive path between the first and second data lines having a third inductance greater than the first and second inductances. A conductive support structure may carry return current from the electronic system to the source.

Abstract: A vehicular power distribution system includes a first and second power control boxes which are configured to distribute the power, and a main connection cable which electrically connects the first power control box and the second power control box. At least the second power control box includes at least one voltage converter which generates output power of second voltage from input power of first voltage determined in advance. A number of kinds of voltage of power passing the main connection cable is smaller than each of a number of kinds of voltage outputted from the first power control box and a number of kinds of voltage outputted from the second power control box.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for dynamically tuning circuit elements. One aspect includes a variable capacitance device. The device includes a first capacitor, a first switch, a second capacitor, a second switch, and control circuitry. The control circuitry is configured to adjust respective capacitances of the first and second capacitors by causing a first control signal to be applied to the first-switch control terminal for a duration of time in response to detecting a zero voltage condition across the first switch, and by causing a second control signal to be applied to the second-switch control terminal for the duration of time in response to detecting a zero voltage condition across the second switch.

Abstract: Disclosed is a wireless power transfer system-charger for wireless power transmission. The wireless power transfer system-charger includes: a power converting unit to convert a DC signal into an AC signal; a control unit to control the power converting unit with a first or second operating frequency; and an induction-type antenna system and a resonance-type antenna system connected in parallel to each other, wherein power is transmitted through the induction-type antenna system or the resonance-type antenna system according to a control of the control unit.

Abstract: A contactless power transfer system includes a power transmission device and a power receiving device. A second electronic control unit of the power transmission device is configured to determine whether a series of manipulations including severing connection between the power transmission device and the power supply via the power supply cable, and then connecting the power transmission device with the power supply again via the power supply cable, are performed. The second electronic control unit is configured to send a predetermined signal to the power receiving device when the second electronic control unit determines that the series of manipulations are performed. A first electronic control unit of the power receiving device is configured to generate a command for start of power transmission to the power transmission device, irrespective of the time schedule, when the first electronic control unit receives the signal.

Abstract: A power electronic device includes at least one inductor configured to couple to a first capacitor and a second capacitor. The power electronic device includes a controller configured to control a first current conducting through the inductor and a second current conducting through the inductor. The first and second currents conduct in opposite directions with respect to each other, and the first and second currents interact with each other through the inductor such that a net direct current (DC) component through the inductor is approximately zero.

Abstract: A apparatus includes: a detector that detects a parameter that indicates a state of an electric power system; a first communication interface that communicates with a device that receives power supplied from the electric power system; a second communication interface that receives a demand response signal from a server that monitors a state of the electric power system; and a control circuit that controls the device via a first communication interface. The demand response signal contains either first information indicating an instruction for increasing the amount of power supplied from the electric power system to the device or second information indicating an instruction for decreasing the amount of power supplied from the electric power system to the device, and the control circuit determines whether control of the device is performed in accordance with the demand response signal based on the first information or second information contained and the detected parameter.

Abstract: A non-contact power reception apparatus comprises a power reception coil which receives AC power supplied from a power transmission apparatus in a non-contact manner; a diode full-wave rectifier circuit which inputs AC power from a resonance circuit to first and second input ends and outputs DC power between an output end and a reference potential end; a common mode filter which comprises first and second coils wound around a common magnetic body in parallel in the same direction for only the same number of turns, connects one end of the first coil with the output end of the diode full-wave rectifier circuit and connects one end of the second coil with the reference potential end; a smoothing capacitor connected between the other end of the first coil of the common mode filter and the other end of the second coil; and a load connected with the smoothing capacitor in parallel.

Abstract: A circuit can include a CAN bus and multiple nodes. The multiple nodes can reboot at the same time so that a Time 0 is set at boot for each node. Each node can store an ID node and determine from its ID node one time slot of a plurality of periodic time slots starting from Time 0 in which to transmit on the CAN bus. Each node can transmit messages on the CAN bus in its determined time slot subsequent to Time 0.

Abstract: A Direct Current (DC) Isolated-Parallel (Iso-Parallel or IP) Uninterruptible Power Supply (UPS) system and method for converting incoming AC power to DC power using several modules which are paralleled at their outputs yet fault isolated from each other. The DCIP UPS has two or more modules connected to a common IP Bus which operates at AC voltage and is disposed between a facility electrical distribution system and the facility's critical electrical loads which operate at DC voltage. The electrical distribution system receives power from a local utility, or from a standby power source when utility power is unavailable, and delivers AC power to the DCIP UPS input. The DCIP UPS converts the power to DC and delivers it to critical electrical loads associated with computer equipment or other devices using DC power.

Abstract: A vehicle may include a battery and an antenna assembly mounted on the vehicle. The antenna assembly may be mounted on the roof of the vehicle. The antenna assembly may include a cooling arrangement electrically connected with the battery, a pair of thermally conductive plates, and a semiconductor sandwiched between the plates, electrically connected with the battery, and configured to, in response to a temperature difference between the plates, generate a current for the battery. A photovoltaic generator may be electrically connected with the battery to increase electrical generation.

Abstract: A method for transmitting electrical energy is proposed in which between two electrical units electrical current is transmitted by means of a superconductive cable system (4). The two ends of the superconductive cable system (4) are each connected in a current conducting manner to one of the electrical units. A normally conductive cable system. (5) is arranged parallel to the superconductive cable system (4). The function of the superconductive cable system (4) is monitored by a control unit (10). During normal operation. only one end of the normally conductive cable system (5) is connected in a voltage conducting manner to one of the electrical units.

Abstract: The present invention relates to a method of managing a charge transfer between, on the one hand means of accumulation (9) of an electrical control device (1) of an electric motor of a motor vehicle (43) and, on the other hand, an external electrical circuit (41) outside said motor vehicle (43), said electrical control device (1) comprising: a voltage converter (21) connected to the accumulation means (9); an H-bridge voltage inverter (3) connected to the voltage converter (21) on the one hand and to the phases of the electric motor on the other hand, characterized in that the method comprises a step of controlling the voltage converter (21) and the voltage inverter (3) as a function of the charge transfer.

Abstract: An energy harvester is provided. The energy harvester includes a housing, a permanent magnet that is disposed within the housing, and a mass body that has a relative position to the permanent magnet changed by a translational motion within the housing by vibration energy from the exterior and that is formed of a magnetic substance. Further, a piezoelectric body generates electricity while elastically supporting vibration with respect to the housing of the permanent magnet by the translational motion of the mass body and an induction coil is disposed within the housing to generate induction electricity based on the vibration of the permanent magnet.

Abstract: An example method disclosed herein includes: acquiring, by at least one sensor in communication with a transmitter, data indicating a location of an electrical apparatus within a transmission field of the transmitter. The transmitter is in communication with a mapping memory that stores information that identifies a set of receivers that has each been designated to receive power waves from the transmitter. The method also includes: determining, by the transmitter, using the mapping memory and the data indicating the location of the electrical apparatus, whether the electrical apparatus is a respective receiver of the set of receivers. The method further includes: transmitting, by the transmitter, power waves to the electrical apparatus upon determining that the electrical apparatus is the respective receiver, wherein the power waves are transmitted to converge in a three dimensional space to form one or more pockets of energy at the location associated with the electrical apparatus.

Abstract: An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In some embodiments, the transmitter can include a plurality of transmitter resonators configured to transmit wireless power to the receiver. The transmitter resonators can be disposed on a flexible substrate adapted to conform to a patient. In one embodiment, the polarities of magnetic flux received by the receiver can be measured and communicated to the transmitter, which can adjust polarities of the transmitter resonators to optimize power transfer. Methods of use are also provided.