Abstract: An exemplary embodiment suggested in the present specification provides an apparatus and a method of controlling a voltage of a direct current terminal of construction machinery equipped with a motor, which are capable of improving energy efficiency of a power conversion apparatus, such as an inverter and a converter by changing a voltage of the direct current terminal to an optimum voltage size in consideration of operation conditions of a swing motor, an engine auxiliary motor, and an energy storage apparatus.

Abstract: An exemplary method includes circulating a fluid through a heat exchanger and a battery pack when the battery pack requires cooling, and circulating the fluid through an exhaust gas heat recovery device and the battery pack when the battery pack requires heating. An exemplary system includes a battery pack, a heat exchanger, an exhaust gas heat recovery device, and a fluid valve moveable to a cooling position that permits a fluid to circulate between the heat exchanger and the battery pack and a heating position that permits the fluid to circulate between the exhaust gas heat recovery device and the battery pack.

Abstract: A wireless power transfer system comprising a wireless power transmitting apparatus and a plurality of wireless power receiving apparatuses, the wireless power transmitting apparatus comprising: a power transmitting unit adapted to transmit power to the wireless power receiving apparatus; a recognition unit adapted to recognize the wireless power receiving apparatus; and a transmitting unit adapted to transmit predetermined charging delay information according to a recognition result of the recognition unit to the wireless power receiving apparatus recognized by the recognition unit, and the wireless power receiving apparatus comprising: a power receiving unit adapted to receive power transmitted from the power transmitting unit; a receiving unit adapted to receive the predetermined charging delay information transmitted from the transmitting unit; and a display unit adapted to make a display based on the predetermined charging delay information received by the receiving unit.

Abstract: In the specimen processing system in which each of a specimen input portion which inputs a specimen, a specimen processing portion which processes the specimen, a specimen recovery portion which recovers the processed specimen, and a specimen transporting line which transports the specimen between the specimen input portion, the specimen processing portion, and the specimen recovery portion, are connected to each other by a plurality of processing (analysis) units, the processing (analysis) unit is provided with a CPU that controls the operation, and provided with a mechanism control portion which receives an electric signal from the CPU and operates the mechanism parts in the processing unit, and the mechanism part control portion includes means which can supply and stop the power of one or more arbitrarily specified mechanism parts by the electric signal from the CPU.

Abstract: A power transmitting device includes power transmitting coils, which contactlessly transmit electric power to a power receiving coil, and a switching device. When the power receiving coil is a solenoid coil, the switching device connects the power transmitting coils in parallel with each other such that magnetic fluxes generated inside the power transmitting coils flowing in the same direction along a winding axis. When the power receiving coil is a circular coil, the switching device connects the power transmitting coils in series with each other such that magnetic fluxes generated inside the power transmitting coils flowing in opposite directions along the winding axis.

Abstract: A radio frequency (RF) control system including a RF generator having a power amplifier that outputs a RF signal and a controller. A matching network receives the RF signal and generates a plurality of RF output signals. The matching network includes a ratio tuning element to vary a ratio of power between the plurality of RF output signals. The first controller communicates a ratio control signal to the matching network, and the matching network controls the ratio tuning element in accordance with the ratio control signal. The RF controls system operates in a continuous and pulse mode of operation. The controller can also control the rise or fall of a pulse edge or a level or duration of incremental changes in the pulse edge.

Abstract: A method of undervoltage detection includes detecting a voltage level for a power supply of a system, placing the system in an undervoltage state if the voltage level is below an undervoltage threshold, activating a load of the system at a first power level if the detected voltage level exceeds a first activation threshold and if the system resides in the undervoltage state, and activating the load at a second power level if the detected voltage level exceeds a second activation threshold.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for controlling a battery power source. In one aspect, a system includes a first MOSFET having a first gate, a first source, and a first drain. A second MOSFET having a second gate, a second source, and a second drain. The first source is connected to the second source, and the second drain is coupled to a ground. A control circuit connected to the first gate and the second gate and that provides control signals to the first gate and the second gate that cause the first and second MOSFETS to operate in saturation regions during a first operational state to cause the first power source to discharge and the first MOSFET operates in a linear region during a second operational state to limit a charging current that charges the first power source.

Abstract: A multiple relay arrangement having a plurality of relay sockets which are arranged next to each other and a plurality of relays. The relay sockets contain additional plug connections with which the relays are controlled by the system cabling. The system cabling contains a distribution section having cable sections and plug connectors and allows the plurality of relays to be controlled.

Abstract: Described herein are improved configurations for a wireless power converter that includes at least one receiving magnetic resonator configured to capture electrical energy received wirelessly through a first oscillating magnetic field characterized by a first plurality of parameters, and at least one transferring magnetic resonator configured to generate a second oscillating magnetic field characterized by a second plurality of parameters different from the first plurality of parameters, wherein the electrical energy from the at least one receiving magnetic resonator is used to energize the at least one transferring magnetic resonator to generate the second oscillating magnetic field.

Abstract: A portable generator system provides power to a load source including an engine and a generator. The engine drives the generator to provide a generator alternating current (AC) electrical power output. An energy storage system (ESS) provides an ESS direct current (DC) electrical power output. A first inverter is connected to the generator for receiving the generator AC electrical power output and for providing a DC power output. A second inverter is connected to the first inverter and the ESS for receiving the DC power output from the first inverter and the ESS DC electrical power output for providing an AC power output. A first power mode includes the generator maintaining a first generator power output level corresponding to a specified power requirement of a load source, and the ESS providing an additional first ESS power output level for satisfying the specified power requirement of the load source.

Abstract: A power control includes a switch, having a first terminal coupled to a power supply, a second terminal coupled to a voltage converter, and a control terminal and a first switch controller coupled to the control terminal of the switch and the chipset, controlling the switch to couple the power supply to the voltage converter according to a turning-on event of the power supply system, wherein the first switch controller comprises a power-on switch. The switch does not couple the power supply to the voltage converter before the turning-on event of the power supply system. The power control circuit is configured such that when the power supply is plugged in, but before the power-on switch is conducting during the turning-on event of the power supply system, the power supply is isolated from the voltage converter and the chipset.

Abstract: The invention includes; a sealed housing made of a plastic or metal material; a conductive plate made of a copper material, positioned in the center of the housing, and respectively connected to power lines so as to accumulate magnetic energy generated in an internal polymer-clay nanocomposite; a base insulation plate having insulation characteristics so as to fix the conductive plate; electric wires which are power lines for transmitting the magnetic energy stored on the conductive plate to the outside; the polymer-clay nano composite filled in the bottom portion of the housing such that the conductive plate is submerged therein; an upper ceramic layer coated on the inner wall of the housing so as to promote the magnetic interaction of a ceramic compound in the upper space portion of the polymer-clay nano composite.

Abstract: In some embodiments, an apparatus includes a single-inductor multiple-output (SIMO) direct current (DC-DC) converter circuit, with the SIMO DC-DC converter circuit having a set of output nodes. The apparatus also includes a panoptic dynamic voltage scaling (PDVS) circuit operatively coupled to the SIMO DC-DC converter circuit, where the PDVS circuit has a set of operational blocks with each operational block from the set of operational blocks drawing power from one supply voltage rail from a set of supply voltage rails. Additionally, each output node from the set of output nodes is uniquely associated with a supply voltage rail from the set of supply voltage rails.

Abstract: An electric power system includes N electric power sources and N switching circuits, where N is an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.

Abstract: A wall-mountable remote control device may be installed in place of an existing light switch and may be configured to transmit wireless signals to an electrical load device, such as a screw-in light-emitting diode (LED) lamp, to provide control of the electrical load device. The remote control device may comprise an air-gap switch adapted to be electrically coupled in series between a power source and the controllable light source, but may not comprise a bidirectional semiconductor switch for controlling the amount of power delivered to the electrical load device using a phase-control dimming technique. The remote control device may have a low-profile enclosure that is smaller than an enclosure of a standard dimmer switch, and thus may be easier to install in an electrical wallbox. The remote control device may comprise two parts including an air-gap switch device and a wireless communication device mounted to the air-gap switch device.

Abstract: A multiple location load control system comprises a main device and remote devices, which do not require neutral connections, but allow for visual and audible feedback at the main device and the remote devices. The main device and the remote devices are adapted to be coupled together via an accessory wiring. The main device can be wired on the line side and the load side of the load control system. The main device is configured to enable a charging path to allow the remote devices to charge power supplies through the accessory wiring during a first time period of a half-cycle of the AC power source. The main device and the remote devices are configured to communicate with each other via the accessory wiring during a second time period of the half-cycle, for example, by actively pulling-up and actively pulling-down the accessory wiring to communicate using tri-state logic.

Abstract: There is described a method for driving paralleled electronic switches via a drive signal processing circuit (1) connected to respective driver circuits (5A, 5B) associated with said electronic switches (7 A, 7B). During the turn-off intervals of the electronic switch, the driver circuit sends a fault signal to the drive signal processing circuit. During the turn-off intervals of the electronic switch, the driver circuit masks the fault signal coming from the drive circuit of the electronic switch.

Abstract: A power-generating system is provided including a fluid-tight chamber and an electricity-generating assembly arranged in the chamber, the electricity-generating assembly comprising a fuel cell for generating power by means of an oxidation-reduction reaction between an oxidizer and a fuel, and a supply system for supplying oxidizer and fuel to the fuel cell, the power-generating system also including a heat-control system including a cold source and a hot source, and a heat-transport fluid circuit that is configured to control the temperature of the electricity-generating assembly by exchanging heat with the cold source and the hot source.

Abstract: The present invention has: a pump capacitor (12), which has one end thereof connected to the source power supply (B) side via a diode (7), and which has the other end thereof connected to two kinds of voltage sources via switches (3, 4); and an output capacitor (13), which has one end there of connected to a high-potential terminal of a pump capacitor via a diode (8), and the other end thereof connected to a source power supply. A filter circuit configured with a resistor (15) and a capacitor (11) is provided between the source power supply and the diode (7).