Abstract: An apparatus, including an AC voltage transforming device increases an AC voltage input signal to a higher AC voltage signal, an AC to DC voltage conversion device which converts the higher AC voltage signal to a DC voltage, wherein the DC voltage has a higher voltage level than the peak or peak-to-peak voltage level of the higher AC voltage signal, a DC to DC conversion device which converts the DC voltage input to a higher DC voltage output, and a DC voltage to load connecting device which connects the higher DC voltage to an electrical load when the output of the DC to DC voltage conversion device attains a desired amplitude or an amplitude needed to drive the electrical load.

Abstract: Exemplary embodiments are directed to wireless power receivers. A device may include a power converter configured to receive an input voltage. The device may further include circuitry configured to limit a pulse width modulation duty cycle of the power converter to prevent the input voltage from dropping below a threshold voltage.

Abstract: An electronic resonant circuit of very high efficiency which is suitable for driving loads with a known and controlled current. The resonant circuit has input terminals and output terminals with a first reactance Xs, in series with an input terminal, a second reactance XL, in series with an output terminal, and a reactance Xp, connected such that there is a series connection path between the first input terminal through Xs and Xp to the second input terminal and such that there is also a second series connection path between the first output terminal through XL and Xp to the second output terminal the input terminals being driven from a high frequency inverter, the output terminals being connected to a load, the value of the reactances Xs, XL and Xp being chosen such that at least one frequency, the reactances of Xs, XL and Xp are approximately similar in magnitude.

Abstract: In one embodiment, a power cell chamber for a drive system includes moveable and fixed portions. The moveable portion includes a rectifier stage to rectify an input signal received from a secondary winding of a transformer to provide a rectified signal and an inverter stage having a plurality of switching devices to receive a DC signal and output an AC signal. This moveable portion can be slidably adapted within a cabinet of the drive system. In turn, the fixed portion includes a DC link having at least one capacitor to receive the rectified signal and provide the DC signal to the inverter stage.

Abstract: An electronic apparatus having reinforced power saving and safety functions, the electronic apparatus may include: a power supply which converts alternating current (AC) power input from an AC power source to direct current (DC) power to be outputted; an AC power switch provided on a first AC power input line connecting the AC power source and the power source and is turned on and off to selectively transmit the AC power to the power supply; a relay provided on a second AC power input line connecting the AC power source and the power supply in parallel with the AC power switch, and receives the DC power from the power supply to selectively transmit the AC power to the power supply; a switching unit which selectively transmits the DC power output from the power supply to the relay; and a controller which controls the switching unit to supply the DC power to the relay if the AC power switch is turned on.

Abstract: There is provided an apparatus for capturing cosmic background radiation and for converting cosmic background radiation into electricity. An antenna is configured so as to capture cosmic background radiation. An electrostatic electron multiplier is connected to the antenna. A high voltage power supply is connected to the electrostatic electron multiplier whereby cosmic background radiation is converted to electricity.

Abstract: A power conditioner for a feeding system which stabilizes a load of active power is provided. A power conditioner for a feeding system comprises a first AC-DC and DC-AC converter for performing conversion between AC power and DC power; and a nickel-metal hydride battery disposed between and connected to a high-voltage cable at DC side of the first AC-DC and DC-AC converter and a low-voltage cable at the DC side of the first AC-DC and DC-AC converter.

Abstract: The present invention refers to a system for regulating a load voltage (C) in power distribution circuits comprising at least: a regulation transformer (2) the secondary winding of the regulatory transformer (2) being operatively arranged in series between a power source (F) and the load (C), the power source (F) being capable of providing a supply voltage (VAL) to the load (C); a measuring device (5) operatively associated to the load (C), the measuring device (5) being capable of measuring at least one value of an electric signal of the load (SCA); a control device (4) operatively associated to the measuring device (5), the control device (4) being capable of comparing the value of the electric signal of the load (SCA) with a pre-established reference value and providing a correcting electric signal (SCO); and an actuation device (3) operatively associated to the control device (4), wherein the actuation device (3) is capable of providing an adjustment voltage (VAJ) proportional to the correcting electric s

Abstract: A method and apparatus of tracking the maximum power point of a photovoltaic module. The method includes measuring an output voltage of the photovoltaic module, determining an output voltage of the inverter connected to the photovoltaic module, and measuring output current of the inverter connected to the photovoltaic module. A variable relating to energy of the capacitor is defined using the measured PV module output voltage, and a second harmonic component is extracted from the defined variable. A second harmonic component of the module output power is estimated using the defined variable, measured output current of the inverter, and the determined output voltage of the inverter. The estimated and extracted second harmonic components are multiplied, and a DC component is extracted from the product. A control signal for controlling the inverter connected to the photovoltaic module is formed by using the extracted DC component in a PI algorithm.

Abstract: A LED dimmer device for use in dimmer is provided. The LED dimmer device includes rectifier, voltage boost device, pre-voltage detection circuit and after-voltage detection circuit adapted for detect voltage, master chip adapted for driving circuit and elements to work, elementary transformer and secondary transformer adapter for changing voltage, secondary rectifier adapted for rectifying and secondary filter capacitance circuit adapter for filtering, and secondary switch tube. The rectifier is adapted for transforming alternating current into direct current. The voltage boost device includes a metal oxide semiconductor field effect transistor used to make dimmer entering into a normal edge state. The master chip includes integrated comparing element used to compare voltage. The secondary switch tube is used to driving elementary transformer and secondary transformer, secondary rectifier, secondary filter capacitance circuit so as to drive LED power supply to illuminate.

Abstract: The invention relates to a photovoltaic device comprising at least one photovoltaic cell (60) provided with active thin layers (15) deposited on a substrate (10), said active layers being unsegmented, and at least one static converter (50) associated with each photovoltaic cell (60). Each photovoltaic cell (60) supplies an electrical power with a maximum current (Icc) and a nominal voltage (Vp), and each static converter (50) is adapted in such a way as to transmit the electrical power supplied by the photovoltaic cell towards a load (100), reducing the transmitted current and increasing the transmitted voltage. The laser segmentations of the photovoltaic cells are thus limited, or completely eliminated, on a same panel. The yield of the photovoltaic device production is thereby improved and the dead surfaces are limited.

Abstract: The present invention relates to a reconfigurable power converter module for a wind turbine facility adapted to supply electric power to an associated power supply grid. The reconfigurable power converter module comprises a frequency converter operatively connected to filter means, wherein said frequency converter and said filter means are mutually reconfigurable so as to suppress internal and/or internal resonances/harmonics.

Abstract: A circuit include: a first power factor correction circuit that forces current produced by the positive AC voltage to be in phase with the positive AC voltage so that a power factor of electric power is improved; a second power factor correction circuit that forces current produced by the negative AC voltage to be in phase with the negative AC voltage so that a power factor of electric power is improved; and an output circuit including a first capacitor storing first electric power with a power factor improved by the first power factor correction circuit and a second capacitor storing second electric power with a power factor improved by the second power factor correction circuit, the first capacitor and the second capacitor being provided in series, the output circuit outputting the first electric power stored in the first capacitor and the second electric power stored in the second capacitor.

Abstract: The present invention provides an alternating current regulating means including a positive half-cycle current-limiting circuit and a negative half-cycle current-limiting circuit. The positive half-cycle current-limiting circuit includes a first diode and a first current-limiting circuit. The negative half-cycle current-limiting circuit includes a second diode and a second current-limiting circuit. The first diode allows the positive half-cycle current of the alternating current to pass through, and the second diode allows the negative half-cycle current of the alternating current to pass through. Thus, when the input power supply generates an alternating current, the first diode and the second diode respectively allow the positive half-cycle current and the negative half-cycle current of the alternating current to pass through.

Abstract: A solar electricity system, comprising a solar collection surface adapted to convert light into DC electricity; a power inverter to convert the DC electricity into AC electricity; and a power cable connected to the power inverter, the power cable comprising a male plug on its distal end adapted to mate with a female power receptacle on a building structure.

Abstract: A phase-controlled power supply is disclosed. The power supply includes a power conditioner with an input configured to connect to an external source of electrical power, the power conditioner being configured to provide conditioned power on its output. The power supply also includes a transformer having a primary winding and a secondary winding, and a switching module coupled between the output of the power conditioner and to the primary winding of the transformer. The switching module has two modes of operation and a control signal input configured to accept a first control signal. The switching module includes a switching element configured to connect the power conditioner output to the primary winding of the transformer. The switching module operates in the first mode when the first control signal is in a first state, switching the first switching element at a first frequency and first duty cycle.

Abstract: An electrical device enclosure includes a front panel, a power supply and a switch assembly mounted on the front panel. The power supply includes an alternating current (AC) plug and a power circuit. The AC plug is used to receive an AC voltage. The power circuit is used to convert the AC voltage from the AC plug into a direct current voltage. The switch assembly is connected between the AC plug and the power circuit to turn on/off a connection between the AC plug and the power circuit.

Abstract: A capacitor circuit includes a first capacitor line including a film capacitor and a second capacitor line including a ceramic capacitor that are connected in parallel with each other. The second capacitor line includes an inductance element that is connected in series with the ceramic capacitor. The inductance element is set to a value such that a series resonant frequency of the first capacitor line and a series resonant frequency of the second capacitor line are matched.

Abstract: An isolated feedback system for power converters includes an error amplifier for receiving an input voltage to output an error signal; a modulator circuit to modulate the error signal with a carrier signal; an acoustic transformer unit, one end of the acoustic transformer connected to the modulator circuit, where a frequency of the carrier signal is away from resonant frequencies of the acoustic transformer; and a demodulation circuit connected to the other end of the acoustic transformer and receiving the modulated signal.

Abstract: A power factor correction converter and a control method thereof are provided includes an interleaving control tube set, an interface to an alternating current power supply, a first inductor, a second inductor, a third inductor, a capacitor, a first bridge arm and a second bridge arm. Abridge arm includes a first switch tube and a second switch tube connected in series; The first bridge arm, the second bridge arm, and the capacitor are connected to each other in parallel; the alternating current power supply and the first inductor are connected in series, and the second inductor and the third inductor are connected in parallel, and then connected to the first inductor in series; the second inductor is connected to the first bridge arm, and the second inductor is connected to the second bridge arm; and the alternating current power supply and the first inductor are connected in series.

Abstract: An inverter module and an integrated-inverter electric compressor using the same, which can eliminate noise interference, noise leakage, and the like attributable to a smoothing capacitor accommodated therein and which can be reduced in size and weight is provided. An inverter module (11) includes a resin module case (17); a power system board (15) provided on a bottom side of the module case (17); and a control board (19) provided on an upper side of the module case (17). A smoothing capacitor (18) connected to a power supply line for the power system board (15) is incorporated into the module case (17), and the smoothing capacitor (18) is electromagnetically shielded with respect to the power system board (15) and the control board (19).

Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertize to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.

Abstract: A shade or blind comprises a header and a photovoltaically active area. The photovoltaically active area is suspended from the header. The shade or blind further comprises a light and conductors coupling the photovoltaically active area to the light.

Abstract: There are provided an apparatus and a method for controlling the power quality of a power generation system. According to the present invention, there is provided an apparatus for controlling the power quality of a power generation system including a DC/AC inverter converting DC voltage into AC voltage and supplying inverter current to a grid, including: a grid voltage phase follower generating a grid signal; a fundamental extractor extracting a magnitude of a fundamental wave of a load current introduced into a non-linear load connected between the DC/AC inverter and the grid; a first calculator subtracting a preset current compensation value from the magnitude of the fundamental wave from the fundamental extractor; and a second calculator generating an inverter current instruction value for the DC/AC inverter by using the output value of the first calculator and the grid signal and the load current from the grid voltage phase follower.

Abstract: The present invention is a spike converter providing a special mode of operation of a low power fly-back converter in a very narrow duty cycle range in particular. This spike operation minimizes the size of the required reactive components such as that of the power transformer and output capacitance. The present invention automatically achieves low idle power consumption due to the nature of the feedback under fixed, narrow duty cycle or spike operation. The spike operation is defined by the lower limit of the on time of the switching element being generated by the sum of the propagation delays of a current sense comparator and an off time pulse generating comparator.

Abstract: The disclosure describes a processing system with a soft power switch assembly configured to include a zero-power off mode that would allow an off state with no power drain by the device while maintaining all other soft power off mode capabilities, including low power modes, (e.g., sleep, hibernation modes). The processing system can be restored from the zero-power off mode using the same actuation mechanism used when switching from a power on mode to a soft power off mode.

Abstract: A solid state device controller is provided that includes a first electrical connector configured to be in electrical communication with an alternating current (AC) electrical power source and a second electrical connector in electrical communication with the first electrical connector, wherein the second electrical connector is configured to be in electrical communication with a direct current (DC) electrically powered device. The controller further includes circuitry in communication between the first electrical connector and the second electrical connector, wherein the circuitry is configured to convert the supplied AC electrical power to DC electrical power, and a housing configured to enclose at least a portion of the first electrical connector, the second electrical connector, and the circuitry, wherein the housing is further configured to be removably received by a service panel assembly.

Abstract: A power conversion system includes a photovoltaic source to generate direct current (DC) power; a direct current (DC) to an alternating current (AC) single stage inverter to convert the direct current (DC) power from the photovoltaic source to alternating current (AC) power for delivery to a power grid, and a load balancing unit coupled to the single stage inverter. The power conversion system also includes a controller configured to determine a maximum power point for the power conversion system, regulate an output voltage of the single stage inverter, compute a power balance difference between a power demand from the power grid and an output power of the single stage inverter obtainable at the maximum power point and control in real-time the load balancing unit based on the power balance difference.

Abstract: A reverse energy recovery circuit is located on a power conversion circuit equipped with a transformer which has a primary winding side connected to a power switch driven by a control unit. The primary winding side has a first end and a second end bridged by the reverse energy recovery circuit which comprises a first capacitor, a second capacitor, an ancillary winding and a diode. The first and second capacitors are coupled in series. The second capacitor has one end connected to the first end of the primary winding side. The ancillary winding has a first end connected to the first end of the primary winding side. The diode has a cathode connected to a second end of the ancillary winding and an anode bridged the first and second capacitors so that the diode and ancillary winding form a one way path between the first and second capacitors.

Abstract: A power source system including power-factor modifying circuits to modify a power factor of supplied electric power, a time difference circuit to output start signals for instructing the power-factor modifying circuits to start an operation to the power-factor modifying circuits at specified time intervals, and a control circuit to supply the electric power to the power-factor modifying circuit to start the power-factor modifying circuit when the power-factor modifying circuit acquires the start signal output from the time difference circuit.

Abstract: According to one disclosed embodiment, a smart power delivery system includes a power conversion unit having a communication module and a power management module that can convert mains power into an optimized voltage and limited current used to power an electronic device. In one embodiment, a power conversion unit can optimize an output voltage by communicating with a connected electronic device and exchanging parameters representing desired characteristics of the output voltage. In one embodiment, an electronic device receives power from a power conversion unit through a wired power conduit. In another embodiment, an electronic device receives power from a power conversion unit through a wireless power conduit. In one embodiment, an optimal voltage is selected after negotiation between multiple electronic devices and a power conversion unit.

Abstract: The present disclosure generally relates to a superconducting power grid having one or more AC/DC converters. The superconducting grid may further include one or more pairs of superconducting DC cables connecting each AC/DC converter. Each pair of superconducting DC cables may include a first positive polarity cable and a first negative polarity cable. The grid may also include at least one switching device configured to operatively connect at least one of the first and second AC/DC converters with at least one of the pairs of superconducting DC cables, the switching device further configured to adjust the polarity of at least one of the polarity cables. Other embodiments and implementations are also within the scope of the present disclosure.

Abstract: A power adaptor detection system includes a power adaptor device configured to receive electrical power at a first voltage and to convert the electrical power to a second voltage. The second voltage has a lower value than the first voltage. An identification generating circuit is coupled to the power adaptor device. The identification generating circuit is configured to convert a portion of the electrical power to a substantially constant value electrical current. An identification detection circuit is configured to detect the second voltage. Detecting the second voltage causes the identification circuit to determine the value of a pulse of the electrical current, wherein the value of the electrical current is an identification attribute of the power adaptor device.

Abstract: A system for power hardware in the loop testing is described. The system includes a power system and a control system, the power system connected to a power converter of a device under test, the control system being in communication with the power system and the power converter. The control system determines the voltage input to the power system by utilizing the voltage output of the power converter, the voltage input determination being made by a control algorithm comprising.

Abstract: An electric massager comprising an enclosure box that contains a reverse structure of audio speaker less a speaker diaphragm, the said reverse structure in the box comprising two metal plates sandwiching a permanent magnets, a coil-cone and a thin metal leaf spring connecting to the said magnet and to the enclosure box. The said massager as a kit includes a separate AC/AC transformer, and as an optional item, a DC/AC inverter for an automobile use. When the said coil is energized by the AC/AC transformer or the DC/AC inverter, the said sandwiched magnet vibrates at a given AC frequency. The vibration is transferred to the enclosing box via the said leaf spring so that the enclosure box vibrates and the heat generated by the coil is trapped within the enclosure box and warms the box, the massager.

Abstract: DC current in a high voltage AC/DC or DC/AC converter station can be measured via the Faraday effect in one or more loops of an optical sensing fiber located at the base of a bushing extending through a wall of the hall. This arrangement can exploit the base of the bushing being at ground potential, which can simplify mounting work and maintenance.

Abstract: An inverter system includes inverting circuitry for inverting an input DC signal into a square wave or quasi-square wave AC signal across a resistance, and a controller for causing the inverting circuitry to invert the input DC signal into the AC signal. The DC signal is a DC voltage having a value that ranges from 24-32 volts DC. The AC signal is an AC voltage having a value that ranges from 115-230 volts AC RMS.

Abstract: System and method for providing isolated power to a component that is also subject a set of RF signals that includes at least a first RF signal having a first RF frequency is provided. There is included providing a DC voltage signal and modulating the DC voltage signal into an isolated power signal using an isolation transformer. The isolated power signal has an intermediate frequency that is higher than 60 Hz and lower than the first RF frequency. There is included supplying the DC voltage signal to the primary winding and obtaining the isolated power signal from the secondary winding; and delivering the isolated power to the component using the isolated power signal.

Abstract: A power supply with synchronized clocks includes a transformer for transforming an AC input voltage into a DC input voltage, a delay unit for delaying phase of a standard clock signal to generate a plurality of synchronization clock signals, a major DC-DC converter for adjusting voltage level and phase of the DC input voltage according to one of the plurality of synchronization clock signals to generate a major output voltage, and a plurality of parallel DC-DC converters each for adjusting voltage level and phase of the major output voltage according to one of the plurality of synchronization clock signals to generate a minor output voltage.

Abstract: An inverter device includes a power module, which converts DC power into AC power, and a bus bar, which is fastened to a terminal of the power module by a bolt. In a state in which a current sensor is arranged between the terminal of the power module and the bus bar, the bolt fastens together the bus bar, the current sensor, and the terminal. The current sensor detects current flowing through the bolt to detect current flowing through a power supply route, which includes the bus bar.

Abstract: A power generation system comprises a power source, a transformer module for converting a low voltage from the power source into a higher voltage, and a voltage-multiplier module for amplifying higher voltage from the transformer module. The transformer module comprises a number N of transformer units. Each transformer unit comprises at least one transformer, and each transformer comprises a magnetic core, a primary winding, and a secondary winding. Primary windings of the transformers in the transformer module are electrically coupled in parallel to the power source, secondary windings of the transformers of each transformer unit comprise a pair of output terminal, and N is equal to or greater than two. The voltage-multiplier module comprises the number N of multipliers. Each multiplier module comprises a positive and a negative input terminal, and a positive and a negative output terminal.

Abstract: An apparatus comprises a first energy storage device configured to output a DC voltage, a first bi-directional voltage modification assembly coupled to the first energy storage device, and a charge bus coupled to the first energy storage device and to the first bi-directional voltage modification assembly. The apparatus also comprises high-impedance voltage source coupleable to the charge bus and a controller configured to monitor a transfer of charging energy supplied from the high-impedance voltage source to the first energy storage device. The controller is also configured to compare the monitored transfer of charging energy with a threshold value and, after the threshold value has been crossed, control the first bi-directional voltage modification assembly to modify one of a voltage and a current of the charging energy supplied to the first energy storage device.

Abstract: Systems and methods are provided for bi-directional energy delivery. A charging system comprises a first bi-directional conversion module, a second bi-directional conversion module, and an isolation module coupled between the first bi-directional conversion module and the second bi-directional conversion module. The isolation module provides galvanic isolation between the first bi-directional conversion module and the second bi-directional conversion module.

Abstract: Systems and methods are provided for operating a charging system with galvanic isolation adapted for multiple operating modes. A vehicle charging system comprises a DC interface, an AC interface, a first conversion module coupled to the DC interface, and a second conversion module coupled to the AC interface. An isolation module is coupled between the first conversion module and the second conversion module. The isolation module comprises a transformer and a switching element coupled between the transformer and the second conversion module. The transformer and the switching element are cooperatively configured for a plurality of operating modes, wherein each operating mode of the plurality of operating modes corresponds to a respective turns ratio of the transformer.

Abstract: A power converter employing a magnetic device including a magnetic core and first and second tapped windings. Each winding of the magnetic device has first and second winding sections, respectively, coupled to the magnetic core, wherein the first and second winding sections are formed from a formed and folded planar conductive sheet. The magnetic core includes a common leg, a plurality of outer legs, and a top plate. The first and second winding sections are constructed with a formed and folded planar conductive sheet formed with structures usable as pins in a through-hole, surface-mount, or combined printed wiring board assembly process. The outer legs at either end of the magnetic core are positioned back from magnetic core ends, and the magnetic core is formed with a stepped structure to accommodate winding pins in a surface-mount printed wiring board assembly process.

Abstract: A method for operating a switching power supply is provided. A switching element is switched on and off by a switching signal with a variable switching frequency. A frequency bandwidth is predefined for determining average levels of a frequency spectrum of the switching signal. The switching frequency is modulated by a modulation frequency greater than a frequency bandwidth.

Abstract: An electronic device is disclosed herein. An embodiment of the electronic device comprises an electronic component, wherein the electronic component is operated by a DC voltage. The electronic component comprises an AC to DC converter that converts an AC voltage to the DC voltage, wherein the RMS value of the AC voltage is greater than the DC voltage. The electronic device further comprises a power supply comprising an input and an output. The input is connectable to a line voltage and the output is connected to the AC to DC converter of electronic component. The AC voltage is output by the output of the power supply.

Abstract: A means of providing solar powered electricity for day and nighttime use supported in part by power from the grid to allow a small generator to electrify the home or business with a small generator operating with much larger capacity. Excess solar energy is provided to the power company as needed.

Abstract: A circuit for operating a household appliance, having a switching power supply for transforming a grid voltage of a supply grid to a direct current supply voltage, a controller for controlling processes of the household appliance that can be coupled to the switching power supply and supplied by the DC supply voltage, and a button by means of which the switching power supply can be coupled to the supply grid by closing an electrical switch. The switch has two mechanically stable states and can be transitioned from one mechanically stable state to the other by actuating the button and/or by an at least indirect energy input from the controller.

Abstract: A power line communication device comprises a plurality of transformers in series. These transformers are used to increase the voltage of a digitally encoded signal in a stepwise fashion prior to being coupled into a power line. While a transmit path includes at least a first transformer and a second transformer in series, a receive path may include only one of these two transformers. For example a receive path may include only the first transformer, or include the first transformer and a third transformer. The net ratio of voltage increase and decrease may be different in the transmit and receive paths. Additionally, the communication interface can be disposed within an AC/DC converter or distributed among an AC/DC converter and an appliance attached thereto.