Abstract: Various embodiments of a wireless connector system are described. The system has a transmitter module and a receiver module that are configured to wirelessly transmit electrical energy and/or data via near field magnetic coupling. The wireless connector system is designed to increase the amount of wirelessly transmitted electrical power over a greater separation distance. The system is configured with various sensing circuits that alert the system to the presence of the receiver module to begin transfer of electrical power as well as undesirable objects and increased temperature that could interfere with the operation of the system. The wireless connector system is a relatively small foot print that is designed to be surface mounted.

Abstract: A power transmission system is provided. In the power transmission system, a plurality of power supply voltages are switched alternately and periodically, and is sent from an upstream module unit toward a downstream control unit as one system of output voltage. In the downstream control unit, a plurality of voltages from the inputted voltage is separated and supplied to loads, and the voltage is monitored so as to determine switching timing. Further, the downstream control unit is equipped with capacitors for each system of voltages, and thereby the voltages are maintained even during a time period when no power is supplied from the upstream module unit. A low voltage required by a CPU of the downstream control unit is generated by a voltage regulator of the downstream control unit. The power loss that is caused in generating power to be consumed by low-voltage loads can be reduced.

Abstract: Various embodiments of a wireless connector system are described. The system has a transmitter module and a receiver module that are configured to wirelessly transmit electrical energy and/or data via near field magnetic coupling. The wireless connector system is designed to increase the amount of wirelessly transmitted electrical power over a greater separation distance. The system is configured with various sensing circuits that alert the system to the presence of the receiver module to begin transfer of electrical power as well as undesirable objects and increased temperature that could interfere with the operation of the system. The wireless connector system is a relatively small foot print that is designed to be surface mounted.

Abstract: An object detection system in a saw includes an electrically conductive plate positioned at a predetermined distance from the implement, a detection circuit comprising a transformer, and a single cable connecting first terminal and second terminals of the transformer. The single cable includes a first conductor electrically connected to the first terminal of the winding and to the electrically conductive plate, a second conductor electrically connected to the implement, and an electrical insulator positioned between the first conductor and the second conductor.

Abstract: In one embodiment, a battery backup unit (BBU) cut-off and recharge circuit includes: a first transistor, a power entry connection connected to a main power supply, where power from the power entry connection flows to application circuits for an electronic device, and the first transistor is positioned between a BBU and the power entry connection, and a microcontroller, where the microcontroller is operative to: detect a loss of power from the main power supply, turn on the first transistor to enable the BBU to discharge through the power entry connection to application circuits, detect a status of charge (SOC) for the BBU, and upon detecting that the SOC is under a predefined threshold, set the BBU cut-off and recharge circuit to a lockdown state by turning off the first transistor.

Abstract: This control apparatus includes (A) a first connecting part, which is connected with a driving control apparatus for controlling driving of a power unit for assisting a human power or with the power unit, and through which a current relating to charging and discharging of an electrical power storage device flows, (B) a second connecting part, which is provided separately from the first connecting part, and through which a current relating to charging to the electrical power storage device flows via an electrical connection, and (C) a controller to control charging and discharging of the electrical power storage device, which are performed by using a current, which flows in the first connecting part and/or the second connecting part.

Abstract: An in-vehicle communication system includes communication lines connecting ECUs together in the form of a daisy chain, has a maximum transferable data length of 64 bytes or more, and selects a speed of data transfer from one of a plurality of transmission speeds more than or equal to 2 Mbps. Each ECU includes a substrate-side connector with surface-mounted connector pins. The connector pins include a first connector pin pair and a second connector pin pair. The first connector pin pair has leads whose lengths equal to each other. The second connector pin pair has leads whose lengths are equal to each other and different from those of the second connector pin pair. This minimizes the distortion of waveform of signals when the signals are transmitted at a speed higher than that in a high-speed CAN, thereby enables the number of nodes to be increased.

Abstract: A wireless power transmitter for wirelessly transmitting power to a wireless power receiver is provided. A wireless power transmitter according to various embodiments may include: a driving unit that provides power; and a power transmission unit that wirelessly transmits power to the wireless power receiver based on the power received from the driving unit, wherein the power transmission unit may include at least one capacitor; a first coil connected to the at least one capacitor, and a second coil connected to the at least one capacitor and disposed parallel to the first coil.

Abstract: A method for detecting a foreign object between a transmission pad and a reception pad for wireless power transfer (WPT) may comprise steps of performing a zero phase angle (ZPA) control for a power transfer converter included in or connected to the transmission pad; detecting a characteristic parameter with respect to at least one of an input current and a switching frequency of the power transfer converter; and determining whether or not a foreign object exists between the transmission pad and the reception pad according to whether the characteristic parameter with respect to at least one of the input current and the switching frequency deviates from an allowable range.

Abstract: A charging device housed on board a motor vehicle includes at least one “WPC” inductive primary antenna, having a charging frequency, and a second “A4WP” resonant primary antenna, having a resonant frequency at least 1000 times higher than the charging frequency, a ferromagnetic body situated below and joined to the inductive antenna. The method for charging a mobile terminal includes: equipping the ferromagnetic body and inductive antenna beforehand with a system able to move the ferromagnetic body and inductive antenna with respect to the resonant antenna, moving the ferromagnetic body associated with the inductive antenna with respect to the resonant antenna, depending on the resonant frequency of the resonant antenna when the mobile terminal is charged by the resonant antenna, and moving the ferromagnetic body associated with the inductive antenna depending on the charging efficiency of the inductive antenna when the mobile terminal is charged by the inductive antenna.

Abstract: A modular lighting control system is disclosed for lighting control, modular home electronic devices and home networking of modular electronic devices. The system includes a switch module having one or more magnets, a wireless power transmission coil, an infrared light transmitter and an infrared light receiver and a user interface module having one or more wireless power reception coils, one or more magnets, an infrared light emitter and an infrared light detector. The user interface module can be removably attached to and powered by one or more of the switch modules and communicate with one or more of the switch modules without any mechanical attachment or electrical connection on either the switch module or the user interface module.

Abstract: The invention relates to a method for operating an inverter (1) and to an inverter (1) for converting a direct voltage (UDC) into an alternating voltage (UAC) with a specified grid frequency (fAC) for supplying loads (12) and/or feeding into a supply grid (13), comprising a direct voltage input (2) and multiple AC power units (6) which are connected in parallel and comprise semiconductor switches (7) in a bridge circuit and freewheeling diodes (8) arranged parallel thereto. The outputs of the AC power units (6) are connected to an alternating voltage output (10) via a respective inductivity (9).

Abstract: A DC power distribution system has power sources, a DC power distribution bus with DC bus sections. The system has power switching assemblies to couple one of the DC bus sections to another and a system controller. An inverter is connected to one of the power switching assemblies to supply a consumer. The first and second terminals are electrically coupled to first and second bus sections. First and second semiconductor devices between the terminals control current flow and there is a current connection from each terminal to a power switching assembly controller for providing an indication of current. A control signal line is connected between the power switching assembly controller and each semiconductor device provides a signal to the semiconductor devices to control the current flow and an inverter coupler couples each current connection to the inverter. The inverter coupler has a feed from each current connection to the inverter.

Abstract: A circuit breaker is disclosed for interrupting an electrical circuit when current limit values are exceeded. The circuit-breaker includes a current sensor for determining the electrical current flow and a control device. When current limit values are exceeded, the electrical circuit is interrupted. A first current limit value, when exceeded, results in an immediate interruption and a second current limit value, when exceeded, results in a time-delayed interruption, such that the second interruption time reduces as the current increases. Only one control element is included for setting a current limit value. The element defining the second current limit value is included for the time-delayed interruption of the electrical circuit. The other parameters are either set in a fixed manner and/or are related to the settable second current limit value.

Abstract: A vehicle front portion structure that includes: a first vehicle body frame that extends in a vehicle transverse direction at a vehicle front portion; a second vehicle body frame that is positioned at a rear side of the first vehicle body frame, and that extends in the vehicle transverse direction at the vehicle front portion; and a non-contact charger having a front side part that is joined to the first vehicle body frame and having a rear side part that is joined to the second vehicle body frame, wherein the non-contact charger includes: a power receiving coil, a cover having a charger bottom surface that is positioned beneath the power receiving coil, and a pair of left and right longitudinal direction frames that respectively extend in a vehicle longitudinal direction at left and right sides of the power receiving coil.

Abstract: The present invention is directed to an electronic switch device, the device including a housing assembly including a front cover assembly having a user accessible surface, a back body assembly, terminals configured to be coupled to an AC power source and the load; an antenna assembly including an antenna substrate disposed inside the housing assembly adjacent a portion of the front cover assembly, an antenna being disposed on the antenna substrate having a conductive grid structure; and a circuit assembly disposed inside the housing assembly coupled to the terminals, the circuit assembly comprising a printed circuit board, the printed circuit board including a ground plane, the circuit assembly being electrically connected to the antenna assembly via a conductor, the printed circuit board being separated from the antenna assembly by a predetermined distance, the circuit assembly including a relay switch having at least one solenoid winding connected to the circuit assembly and a set of contacts.

Abstract: A device with controllable switch terminal voltage, comprising: a switch signal unit for outputting a corresponding switch signal according to the state of a switch, wherein the switch is coupled between the switch signal unit and an output of a power supply; a biasing unit coupled to the switch signal unit for outputting a bias voltage to the switch signal unit; wherein when the switch is open and a conductive liquid and/or the stream of conductive liquid exists inside the switch, the biasing unit cooperates with the switch signal unit so as to control the terminal voltage of the switch and the current flowing through the switch. The disclosed switch design allows the switch terminal voltage to be less than 1V when the switch is opened, which greatly depresses the electrochemical reaction of the switch, thus prolonging the switch life, and avoiding the possibility of hydrogen explosion.

Abstract: A non-contact feeding device has a power transmission device, and a power receiving device to which power is transmitted from the power transmission device in a non-contact manner. The power transmission device includes a transmission coil configured to supply the power to the power receiving device, a power supply circuit configured to supply AC power to the transmission coil and to be capable of adjusting at least one of a switching frequency and voltage of the AC power supplied to the transmission coil, a first communicator configured to receive an output voltage abnormal signal from the power receiving device, and a control circuit configured to change at least one of the switching frequency and the voltage of the AC power supplied from the power supply circuit to the transmission coil when the first communicator receives the output voltage abnormal signal.

Abstract: The present invention presents a real-time synchronization system for power converters interconnected with the electrical network, whose operation is based on a structurally stable limit cycle oscillator and which develops pure sinusoidal trajectories, creating references free of harmonics and disturbances in network. The proposed invention has the advantage that it has a high degree of immunity and robustness within highly contaminated networks, either due to the presence of harmonics or other types of contamination that may exist in the network, with a better performance than the systems previously reported. Another advantage of the present invention is that regardless of the initial conditions that are established, the system always synchronizes with the signal of the network, guaranteeing a smooth transient from any initial condition to the limit cycle, so it does not require prior tuning.

Abstract: Disclosed is a solid state power controller configured to supply electric power from an AC power supply to at least one load via at least one power distribution channel, the at least one power distribution channel comprising a primary solid state switching device and a secondary solid state solid state switching device connected in series. The solid state power controller includes a primary control terminal driver configured to supply a primary control voltage to the control terminal (G) of the primary solid state switching device with respect to a reference potential (R) and a secondary control terminal driver configured to supply a secondary control voltage to the control terminal (G) of the secondary solid state switching device.