Abstract: The power control of a transport system comprises an electric motor for moving the transport appliance as well as a power supply appliance of the motor, which comprises an intermediate circuit. The power supply appliance of the motor is fitted between the power source and the electric motor. The transport system further comprises a rectifier of the intermediate circuit power, which is fitted between the intermediate circuit of the power supply appliance of the motor and the supplied load for transmitting intermediate circuit power to the supplied load.

Abstract: An appliance having various mechanical components that can be replaced with a component that provides power or data to the appliance. The component being replaced includes handles, trim pieces, face plates, or the like. The source of power to the new mechanical component comes from an external source which can also provide data.

Abstract: A substantially uninterruptible backup power system to provide power to common household appliances comprises a rechargeable battery, a trickle-charging circuit to keep the battery fully charged at all times from the receptacle power, a DC to AC inverter to supply standard AC line voltage from the battery to the lamp, a relay switch, controlled by main power voltage, to switch to the backup system when main power fails, and a timing circuit to optimize a voltage output of the system based on current battery voltage and a desired time period for the voltage output. The system can be set to operate only when the appliance is turned on, which optimizes the current and power required to provide backup power to the appliance for a maximum period of time.

Abstract: Systems and methods are provided for precharging high-voltage buses. The precharge system comprises an energy source having a first terminal and a second terminal, wherein a first voltage is equal to a potential difference between the first terminal and the second terminal. The precharge system further comprises a bus having a first rail and a second rail, wherein a second voltage is equal to a potential difference between the first rail and the second rail. A first contactor is coupled between the first terminal and the first rail and a second contactor is coupled between the second terminal and the second rail. A controller is coupled to the energy source, the bus, and the contactors. The controller is configured to activate the second contactor, and thereafter activate the first contactor if the magnitude of a difference between the first voltage and the second voltage is less than a threshold tolerance.

Abstract: An inductive power transmission platform includes a plurality of inductive power outlets connected to a common driver via individual power switches. The inductive power outlets are configured to couple with inductive power receivers to provide power to electrical loads wired thereto. The switches may be configured to remain closed while current passes therethrough. The common driver may be used to manage the power drawn by the transmission platform to each of the inductive power outlets.

Abstract: A capacitive keyboard device with a keystroke triggering threshold adaptively adjustable capability is proposed, which is designed for integration to an electronic unit, such as PDA (Personal Digital Assistant) computers, mobile phone unit, and calculator, for use as a data input device for the electronic unit. The proposed capacitive keyboard device is characterized by the operation of a triggering threshold adaptive adjustment function that can adaptively adjust the keystroke triggering threshold of the capacitive keyboard device in response to the user's habitual key-pressing action during each use, which also takes account of all internal factors (such as decay of the capacitor structure) and external factors (such as physical characteristics of the user's fingers). This feature allows the capacitive keyboard device to be reliable in operation for long period of use.

Abstract: A modular HVDC converter system including a high voltage direct current network, and at least two DC/AC converters being connected in series to the HVDC network. Each of the DC/AC converters is arranged to provide AC to a separate AC load.

Abstract: Embodiments of the invention are directed to a device that includes a battery having an output of a battery voltage, a step-up voltage converter, a high voltage circuit, a low voltage circuit and a controller. The step-up voltage converter includes an input that is coupled to the battery voltage. The step-up voltage converter is configured to produce a high supply voltage at an output. The high voltage circuit is coupled to the output of the step-up voltage converter. The controller selectively powers the low voltage circuit using either the output from the step-up voltage converter or the battery voltage.

Abstract: A load sharing, multi-module power supply system for supplying power to a load. The system may involve: a first power supply module having a controller, and having a first per unit capacity (pu-c); a second power supply module having a controller, and having a second per unit capacity (pu-c); the controller of the first power supply module adapted to implement a reduction in an output power of the first power supply module upon the detection of an operating event, where a portion of the load being handled by the first power supply module is shed by a percentage, and such that the first power supply module remains operating during the operating event but at a reduced power output level; and upon the occurrence of the operating event the controller of the second power supply module is adapted to increase a power output of the second power supply module sufficient to accommodate the portion of the load that has been shed by the first power supply module.

Abstract: A petroleum dispensing system having a dispenser data distribution system with controllable disconnectors for improving on the conventional wiring that connects dispenser data circuits to the system's site controls. The system includes an emergency stop control system, emergency stop disconnects, data wiring terminals, a circuit for connecting and grouping data signals, and dispenser data disconnect and bypass means.

Abstract: A vehicular lamp is arranged to save power by not driving a cooling fan when an LED is unlit. The vehicular lamp is capable of reducing cost and stopping a supply of current to the LED even in the case of open wiring in a supply of current to the cooling fan. The vehicular lamp includes LEDs connected in series, a cooling fan connected in series with the LEDs and arranged to cool the LEDs. A current supply circuit receives power supplied from a power source and supplies current to the LEDs and the cooling fan.

Abstract: The invention discloses a power-on signal transmitting system, which includes a first electronic device, a second electronic device and a cable coupled between the two electronic devices. The first electronic device includes a power-on control unit. The second electronic device includes a power-on detection unit. The cable includes at least one information wiring and a signal level wiring. The at least one information wiring is used for transmitting an information signal between the first electronic device and the second electronic device. When the second electronic device is at a power-off state, the power-on control unit of the first electronic device is used for transmitting a power-on signal through the signal level wiring to the second electronic device. The power-on detection unit senses the power-on signal and turns on the second electronic device.

Abstract: A method and network device increases the power of the signal transmitted by the device on a wired communications network, such as a powerline communications (PLC) network, without exceeding the maximum allowable common-mode (CM) current specified by regulatory bodies. The device is first tested for regulatory body compliance on a standard network. The output voltage of the device is adjusted until the maximum allowable CM current is detected, and this voltage level and CM current are recorded and stored in non-volatile memory of the device. The device is then connected to the actual network and the output voltage set to the previously recorded value. At this voltage level, the CM current in the actual network is measured and recorded.

Abstract: Charge on a storage capacitor in a backup power supply is managed by discharging the capacitor into an aircraft recorder that is to be powered when a primary power source fails. During the discharging, a first amount of energy discharged from the capacitor is measured along with the length of the discharge time. The first amount of energy and the discharge time are employed to define a target energy level to which the capacitor should be charged to enable the backup power supply to adequately power aircraft recorder. Then charging of the capacitor commences while a second amount of energy stored in the capacitor is measured. The capacitor charging terminates when the second amount of energy reaches the target energy level. Definition of the target energy level also may take into account variation in temperature of the capacitor.

Abstract: A power supply circuit includes a first resistor and a first capacitor. One end of the first resistor is connected to a system power. The other end of the first resistor is connected to the anode of the first capacitor. The cathode of the first capacitor is connected to a digital analog converter A (DACA) VDD pin of a north bridge on a motherboard. The system power provides a stable power signal for the DACA VDD of the north bridge via the first resistor and the first capacitor. Thereby the display no longer ripples when the resolution of the display is adjusted to a certain value.

Abstract: A vehicle power supply device which prevents a lack of power supply to the motor and insufficient recovery of regenerative electric power of the motor at the time of switching between power running and regeneration. First input-output sections (3a, 3b) of a first DC-DC converter (3) are connected to second input-output sections (4d, 4e) of a PDU (4), second input-output sections (3c, 3d) of the first DC-DC converter (3) are connected to a fuel cell (1) and a capacitor (2), first input-output sections (20a, 20b) of a second DC-DC converter (20) are connected to second input-output sections (4d, 4e) of the PDU (4), and second input-output sections (20c, 20d) of the second DC-DC converter (20) are connected to a lithium-ion battery (21).

Abstract: The present invention provides a simplified method of controlling power among the various sources and loads in a power system. Power generating sources are each connected to a common DC bus through a converter designed to optimize power flow to the DC bus. A DC storage device is connected to the common DC bus through a power regulator designed to maintain a constant voltage on the DC bus. Further, an inverter may be provided to convert the DC voltage to an AC voltage for a customer load or for connection to the utility grid. Each power conversion device is independently controlled to provide a modular and simplified power control system.

Abstract: A power transmission control device provided in a power transmitting device of a non-contact power transmission system includes a driver control circuit that controls a power transmitting driver that drives a primary coil, a load state detection circuit that detects a power-receiving-side load state, and a control circuit that controls the driver control circuit. The control circuit performs a foreign object detection process based on load state detection information from the load state detection circuit after receiving ID authentication information from a power receiving device, and starts normal power transmission to the power receiving device after performing the foreign object detection process.

Abstract: The invention relates to an apparatus and a method for wireless energy and/or data transmission between a source device and at least one target device, in which apparatus and method a voltage is induced by at least one primary coil (18), on the source-device side, of at least one primary circuit in at least one secondary coil (20), on the target-device side, of at least one secondary circuit and in at least one coil of at least one resonant circuit, the resonant circuit being arranged so as to be electrically isolated from the primary circuit and from the secondary circuit.

Abstract: A power, ground and communication architecture (100) utilizes hubs (105, 110, 115). Each hub (105, 110, 115) contains computing, communication and power management elements (135, 140). Hubs (105, 110, 115) may be connected to multiple other hubs (105, 110, 115) to distribute communication and power in a freeform web-type arrangement, specific tree, bus or star arrangements are not required. Standardized wiring harness segments (120) are used to join the hubs (105, 110, 115) and control elements. Each of the strands in the web may be an independent point-to-point bus and isolated power line.