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US20150222175 Power Use Reduction Transformer  
A power conditioning device reduces capacitive-in-nature, out of phase current (verses voltage), non-linear distortion, and/or leading power factor “noise” in electrical current in an electrical...
US20110063881 SYSTEM AND METHOD FOR AUTOMATICALLY TUNING A VOLTAGE CONVERTER  
A power converter system is provided, comprising a plant having a plant input and a plant output; and a plant identification filter that receives the plant input and the plant output, and...
US20110051475 REGULATOR CIRCUITRY FOR REDUCING RIPPLE RESULTED FROM LINE VOLTAGE TRANSMITTING TO SECONDARY SIDE OF POWER TRANSFORMER  
The present invention discloses a regular circuitry for reducing ripple resulting from a line voltage transmitting to a secondary side of a power transformer. The regular circuitry electrically...
US20120236606 METHOD AND SYSTEM FOR APPLYING POWER HARMONICS TO SECONDARY LOADS  
A system and method for harvesting and applying power harmonics (e.g., harmonic distortion) comprises a shunt filter that is harmonically tuned for one or more connected loads. The shunt filter...
US20130279216 COMPENSATING RIPPLE ON PULSE WITH MODULATOR OUTPUTS  
A ripple compensation apparatus comprises a ripple detection unit to detect a ripple on a dual DC bus, a waveform generation unit to generate a modulated waveform based on a base waveform and the...
US20150155772 ABSORPTION CIRCUIT FOR ABSORBING A POWER RIPPLE AND ASSOCIATED METHOD  
The present invention concerns an absorption circuit (9) for absorbing a power ripple intended to be connected in parallel to a piece of electrical equipment powered by a power factor correction...
US20090046486 MAGNETIC INTEGRATED CIRCUIT FOR MULTIPHASE INTERLEAVED FLYBACK CONVERTER AND CONTROLLING METHOD THEREOF  
The configurations of an interleaved flyback converter and a controlling method thereof are provided. The proposed two-phase interleaved flyback converter includes a transformer including a first...
US20130322135 COMPACT, METHOD FOR PRODUCING COMPACT, REACTOR, CONVERTER, AND POWER CONVERSION DEVICE  
A low-loss compact and a method for producing the compact are provided. A method for producing a compact by using coated soft magnetic powder that includes coated soft magnetic particles...
US20080304296 DC-DC and DC-AC power conversion system  
A galvanic isolated DC-DC and DC-AC power conversion system is coupled to a plurality of DC sources which are derived from a combination of a plurality of single-phase and three-phase AC-DC...
US20120092906 ARRANGEMENT FOR EXCHANGING POWER  
An arrangement for exchanging power with a three-phase electric power network comprises a Voltage Source Converter having three phase legs with each a series connection of switching cells. The...
US20140347899 CONTROL METHODS FOR POWER CONVERTERS  
A method of operating a power converter arrangement, the power converter arrangement includes a dc link and a dc load/source, an active rectifier/inverter having dc terminals connected to the dc...
US20150194873 CONVERTER HAVING AUXILIARY RESONANT CIRCUIT WITH CURRENT DISCRIMINATING INDUCTOR  
A resonant power converter includes a DC power source, a positive DC conductor, a negative DC conductor, a phase conductor, and a power converting unit between the DC power source and phase...
US20100236612 Inverter for a Distributed Power Generator  
Provided is a maximum power point (MPP) tracker for a PV cell inverter, and a PV cell inverter. The MPP tracker decouples output power oscillations from the input power generation and extracts...
US20090097283 Methods for Minimizing Double-Frequency Ripple Power in Single-Phase Power Conditioners  
A method is provided for minimizing a double-frequency ripple power exchanged between a load and an energy source, the energy source delivering electrical power to the load through a single-phase...
US20050141248 Novel efficient and reliable DC/AC converter for fuel cell power conditioning  
A novel power conditioning converter which provides a significant reduction in input current ripple (<1%), with efficiency above 90% and reduced thermal management is proposed. The converter in...
US20140233281 POWER CONVERTER WITH NOISE-CURRENT REDUCTION CAPACITOR  
In a power converter, a housing is grounded. A power converter circuit is installed in the housing and configured to perform power conversion of input power into output power. An external terminal...
US20110013430 POWER SUPPLY APPARATUS AND ELECTRONIC DEVICE HAVING THE POWER SUPPLY APPARATUS  
A power supply to improve an EMI characteristic and an electronic device having the power supply. The power supply includes a power converter to convert an alternating current (AC) power applied...
US20140104899 CONVERTER ARRANGEMENT  
A converter arrangement has at least one AC voltage connection, at which an alternating current can be fed in or drawn, and at least one DC voltage connection, at which a direct current can be fed...
US20080025053 Uninterruptible power supply with transient suppression  
A power supply system with transient suppression includes an uninterruptible power supply (UPS). A power conditioning circuit is coupled to the UPS for conditioning power supplied by a power...
US20080205095 Ripple compensator and switching converter having such a ripple compensator  
Systems and methods for compensating ripple current and improved ripple compensators and switching converters capable of compensating ripple current. In one embodiment, the ripple compensator for...
US20140321172 SYSTEMS AND METHODS FOR A DC PHASEBACK CHOKE  
Phaseback DC choke includes a common core, a first coil formed about the common core, and a second coil formed about the common core in parallel opposing configuration relative the first coil. A...
US20110305050 METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS  
A method is provided for minimizing a double-frequency ripple power exchanged between a load and an energy source, the energy source delivering electrical power to the load through a single-phase...
US20110235372 Systems And Methods For Scaling A Signal In A Power Factor Correction Circuit  
Systems and methods for scaling a current signal in a power factor correction circuit are disclosed. An exemplary method may include providing a power factor correction circuit for a power supply,...
US20140301118 SWITCHING POWER SUPPLY DEVICE  
The invention provides a switching power supply device such that the occurrence of noise is reduced by jitter control of a switching frequency. The switching power supply device includes a...
US20140233282 NOISE FILTER  
A noise filter is assembled to an electric power conversion device and has a metal housing casing and two capacitors connected to an external terminal of the device through which an electric power...
US20150054598 Filter for Switched Mode Power Supply  
There is provided a filter for receiving a rectangular or stepped source voltage to be filtered and for providing an output voltage, the filter including means arranged to determine the output...
US20130201733 ISOLATED DYNAMIC CURRENT CONVERTERS  
Isolated Dynamic-Current (“Dyna-C”) converters are converters that convert incoming 3-phase AC or DC power to a mix of DC and AC power via an isolation link. In various embodiments, the isolation...
US20140376284 SYSTEMS AND METHODS FOR TUNING THE CONTROL OF A SHUNT ACTIVE POWER FILTER OVER A VARIABLE FREQUENCY  
Embodiments relate to systems and methods for tuning the control of a shunt active power filter over a variable frequency. In aspects, a shunt active power filter is provided to filter current...
US20060034103 Utility grid-interactive power converter with ripple current cancellation using skewed switching techniques  
The invention is an electrical power conversion apparatus for converting DC voltage to poly-phase AC current where the AC current is supplied directly to the electric utility grid for power...
US20130077359 Power Supply and Method of Operation  
A switched-mode power supply (SMPS) and a method of control thereof is described, wherein the SMPS is operable to apply a spread spectrum modulation to a switching driver signal to reduce EMI in...
US20130322134 NOISE REDUCTION UNIT, POWER SUPPLY DEVICE, AND METHOD FOR DISPOSING CORES IN NOISE REDUCTION UNIT  
A noise reduction unit includes a plurality of cores each having formed therein a through hole, a plurality of wires connected to a noise source and each wound around the corresponding core...
US20070236968 POWER SUPPLY WITH RIPPLE ATTENUATOR  
A power supply configured for converting an input AC voltage into an output DC voltage having a desired voltage level is provided. The power supply includes a front-end power converter such as a...
US20080019436 PWM MODULATOR IN MULTI-PHASE CONVERTER  
A circuit for preventing inductor saturation during a step-up load transient in a multi-phase converter circuit where phases are turned ON sequentially by a shared clock signal with a fixed phase...
US20090284996 SYSTEM AND METHOD OF CANCELLING NOISE RADIATED FROM A SWITCH-MODE POWER CONVERTER  
A switch-mode power converter comprises a converter circuit and an auxiliary switching circuit. The converter circuit comprises a storage component configured to temporarily store input energy;...
US20100177539 ELECTRICAL APPLIANCE AND POWER SUPPLY THEREOF  
A power supply includes an adapter and a delay module. The adapter is operable to receive an input voltage and convert the input voltage into a first operation voltage to power a load controlled...
US20140140112 POWER CONVERSION APPARATUS WITH LOW COMMON MODE NOISE AND APPLICATION SYSTEMS THEREOF  
A power conversion apparatus, comprising: a power conversion circuit comprising an AC source; a power conversion unit with DC terminals and AC terminals; a filter inductor unit including first and...
US20140177294 SYSTEMS AND METHODS FOR SUPPRESSING RESONANCES IN POWER CONVERTERS  
Systems and methods for suppressing resonances in power converters are provided. A power converter (100) includes an input stage (101) configured to receive alternating current (AC), an output...
US20110222321 POWER CONVERTER AND METHOD FOR CONTROLLING THE SAME  
An oscillation control part composed of a control switching element and a damping resistance connected in parallel is arranged between an input power supply and a main switching element of a power...
US20070236969 AIRCRAFT POWER CONVERTOR WITH IMPROVED VOLTAGE OUTPUT CHARACTERISTICS  
A multi-phase AC-DC aircraft power converter having an input filter, power transformer, rectifier, output filter, and dummy load that provides improved voltage regulation across a range of output...
US20130201734 DEVICE FOR SUPPRESSING HIGH-FREQUENCY CURRENTS IN INFEED LINES OF AN INVERTER  
A device for suppressing high-frequency currents in infeed lines to an inverter having a common-mode impedance. A magnetic core is configured for inductively coupling the infeed lines, wherein the...
US20080212343 INVERTER BASED STORAGE IN DYNAMIC DISTRIBUTION SYSTEMS INCLUDING DISTRIBUTED ENERGY RESOURCES  
A microsource is provided, which includes an inverter, an energy storage device, and a controller. The controller calculates a maximum frequency change for the inverter based on a first comparison...
US20130201727 METHOD TO MINIMIZE INPUT CURRENT HARMONICS OF POWER SYSTEMS SUCH AS ESP POWER SYSTEMS  
Disclosed is a method for the improvement of the line quality in a system, in which a common feeding (1), via at least one distribution transformer (3), feeds at least two non-linear loads (11)...
US20140218979 POWER CONVERSION DEVICE  
A power conversion device has a power module that switches the ON/OFF state of a switching element and converts and outputs input power, a metal housing that houses the power module, and a...
US20090257253 METHOD FOR OPERATING A CONVERTER CIRCUIT AND APPARATUS FOR IMPLEMENTING THE METHOD  
The disclosure specifies a method for operating a converter circuit, the converter circuit having a converter unit with a large number of drivable power semiconductor switches and with a...
US20090290392 ACTIVE EMI FILTERING USING MAGNETIC COUPLING CANCELLATION  
An active electromagnetic interference (EMI) filtering may reduce the requirements for high current differential mode inductors. The active EMI filtering of the present invention may be useful in...
US20110101689 METHOD AND APPARATUS FOR GENERATING POWER IN A WIND TURBINE  
A power converter for a wind turbine including an array of switching devices and a control module having a current damping device. The control module is configured to control a switching behavior...
US20140376283 SYSTEMS AND METHODS FOR ACTIVE DAMPING DEVICE FOR STABILIZING A POWER GRID OF ACTIVE SOURCES AND LOADS  
Embodiments relate to systems and methods for an active damping device for stabilizing a power grid of active sources and loads. In power system networks or grids which incorporate active power...
US20100238690 METHODS FOR MINIMIZING DOUBLE-FRQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS  
A method is provided for minimizing a double-frequency ripple power exchanged between a load and an energy source, the energy source delivering electrical power to the load through a single-phase...
US20100073971 Regulating Device for a Multi-Phase Voltage Converter  
A regulating device for a multi-phase voltage converter includes a connecting element for picking-off an input/output voltage signal at a power path of the multi-phase voltage converter, and a...
US20070127275 Switching power supply capable of reducing low-frequency secondary-side common-mode voltage  
The invention discloses a switching power supply capable of reducing a low-frequency secondary-side common-mode voltage. The power supply mainly has two common-mode filtering circuit devices to...

Matches 1 - 50 out of 93 1 2 >