Class / Patent application number | Description | Number of patent applications / Date published |
323361000 | Polyphase or plural transformers | 20 |
20080218150 | Method and Device for Supply to a Magnetic Coupler - The invention relates to a method for supply to a magnetic coupler comprising several pairs of windings, each pair being formed from a first and a second adjacent paired winding, magnetically coupled to each other by means of a core of magnetic material. The method further consists of supplying (in | 09-11-2008 |
20090058394 | Device for Supplying Power to Measuring Sensors and Transmitting a Synchronous Clock Signal Thereto - The invention relates to a device for supplying power to measuring sensors and transmitting a synchronous clock signal thereto, in particular, for a low-voltage switchgear, with a power supply unit ( | 03-05-2009 |
20090079413 | Power transformer distribution network and method of operating same - The present invention is single-and multi-phase power distribution systems comprising a plurality of transformers. Each transformer is connected to another of the transformers, in series (single phase) and in series and parallel (multi-phase). Each transformer has a switch connection movable between an on and an off position according to pre-determined rules. | 03-26-2009 |
20090134862 | Transformer Operation Control Apparatus and Method for Suppressing Magnetizing Inrush Current - A control portion | 05-28-2009 |
20100066343 | BINARY VOLTAGE REGULATOR - A voltage regulator is provided that includes a plurality of buck-boost transformers each having primary and secondary windings. The secondary windings of the transformers are electrically disposed in series between a source and a load. Each transformer is controlled by a plurality of control switches configured to control the voltage across the primary winding of a corresponding transformer. A controller monitors the output voltage and generates control signals for the switches. The transformers generate different voltage level changes in between the source and load and the voltages across the primary windings are capable of assuming opposite polarities to enable scaling of resolution and range. The voltage regulator efficiently regulates power with relatively few or no moving parts and also partially protects the power switching components by removing them from the path of the load current thereby producing a device that is smaller in size, costs less and is more reliable. | 03-18-2010 |
20100270999 | TRANSFORMER POWER SPLITTER HAVING PRIMARY WINDING CONDUCTORS MAGNETICALLY COUPLED TO SECONDARY WINDING CONDUCTORS AND CONFIGURED IN TOPOLOGY INCLUDING SERIES CONNECTION AND PARALLEL CONNECTION - A transformer power splitter has a plurality of output ports and an input port. The transformer power splitter includes a plurality of primary winding conductors and a plurality of secondary winding conductors. The secondary winding conductors are electrically connected to the output ports respectively. Each of the secondary winding conductors is electrically connected between a positive terminal and a negative terminal of a corresponding output port. The primary winding conductors are magnetically coupled to the secondary winding conductors respectively. The primary winding conductors are configured in a topology including series and parallel connections between a positive terminal and a negative terminal of the input port. | 10-28-2010 |
20100301833 | LOAD SENSING HIGH EFFICIENCY TRANSFORMER ASSEMBLY - A load sensing, high efficiency, modular transformer assembly for use in power distribution networks. The control of each module of the modular assembly of high efficiency transformers results in considerable energy savings when compared to conventional transformers. The assembly is controlled according to the requirements of the connected load, with modules being switched in and out of circuit, thereby resulting in a transformer with a higher efficiency than is possible with currently available distribution transformers of equivalent capacity. Connection and disconnection of the transformer modules is accomplished with the use of a purpose designed electronic controller. | 12-02-2010 |
20110050199 | CONTROL DEVICE AND CONTROL METHOD OF HIGH VOLTAGE INVERTER - The present invention relates to a control device and a control method of a high voltage inverter capable of automatically and accurately setting up neutral point information at a master controller and a plurality of cell controllers of the high voltage inverter, wherein a master controller determines information of neutral point set up to itself and performs a communication with the cell controllers each disposed at each of a plurality of U phase unit cells, a plurality of V phase unit cells and a plurality of W phase unit cells to determine the neutral point information preset on the cell controllers and to detect a cell controller set up with neutral point information different from that of the master controller, and to correct the neutral point information of the detected relevant cell controller using the neutral point information set up in the master controller, thereby operating the high voltage inverter. | 03-03-2011 |
20110109298 | Power converting device and power supply apparatus - Each voltage converting unit outputs a first signal at a first output and second signal at a second output. Each first transforming unit includes a magnetically coupled primary and secondary coil, the first output of each one of the converting units is connected to a primary coil of a different one of the first transforming units, the primary coil of each one of the first transforming units is electrically connected to one secondary coil of another one of the first transforming units. Each second transforming units includes a magnetically coupled primary and a secondary coil, the second output of each one of the voltage converting units is connected to a primary coil of a different one of the second transforming units, the primary coil of each one of the second transforming units is electrically connected to one secondary coil of another one of the second transforming units. | 05-12-2011 |
20110148391 | VARIOUS METHODS AND APPARATUSES FOR AN INTEGRATED ZIG-ZAG TRANSFORMER - A method, apparatus, and system in which a neutral deriving transformer incorporates a zig-zag transformer configuration is provided. A zig-zag transformer provides an electrical load with a neutral wire. The zig-zag transformer may be electrically connected downstream of a main AC voltage step-down transformer. Additionally, three phase AC voltage lines can be routed to the zig-zag transformer such that the zig-zag transformer comprises a neutral deriving transformer that electrically connects to a ground conductor. The neutral deriving transformer might not be electrically connected to a neutral conductor of the main voltage step-down transformer. The zig-zag transformer can phase shift each winding by approximately 120 degrees and may derive a neutral for at least one single phase load connected to the zig-zag transformer and one of the three phase AC lines in order to provide a common neutral point that takes the place of a neutral cable that connects back to the main AC voltage step-down transformer. | 06-23-2011 |
20120062207 | Powder Core Material Coupled Inductors And Associated Methods - A multi-phase coupled inductor includes a powder core material magnetic core and first, second, third, and fourth terminals. The coupled inductor further includes a first winding at least partially embedded in the core and a second winding at least partially embedded in the core. The first winding is electrically coupled between the first and second terminals, and the second winding electrically is coupled between the third and fourth terminals. The second winding is at least partially physically separated from the first winding within the magnetic core. The multi-phase coupled inductor is, for example, used in a power supply. | 03-15-2012 |
20120112731 | LOAD SENSING HIGH EFFICIENCY TRANSFORMER ASSEMBLY - A load sensing, high efficiency, modular transformer assembly for use in power distribution networks. The control of each module of the modular assembly of high efficiency transformers results in considerable energy savings when compared to conventional transformers. At least two of the transformers have different efficiencies, one higher than the other, The assembly is controlled according to the requirements of the connected load, with modules being switched in and out of circuit, thereby resulting in a transformer with a higher efficiency than is possible with currently available distribution transformers of equivalent capacity. Connection and disconnection of the transformer modules is accomplished with the use of a purpose designed electronic controller. | 05-10-2012 |
20130027019 | Power supply with means for increasing a voltage - The invention relates to a power supply arrangement with a first transformer (T | 01-31-2013 |
20130154607 | REACTIVE REGULATOR - A Reactive regulator capable of introducing reactive powers in an AC electrical system in order to satisfy the reactive power demanded by the loads of such electrical system in a gradual way, when demanded, and in as many stages as necessary to improve the efficiency and viability of such electrical system by having ways to vary the voltage on one or more reactive elements through a coupling element, transformer, autotransformer or any other type of variable voltage drive, whose primary is connected to an electrical system through terminals and the secondary is connected to a reactive element through at least one switch, of solid state or not, which allows the connection of a mobile terminal to any of the derivations of the secondary of the coupling device. | 06-20-2013 |
20130241528 | POLYPHASE CONVERTER WITH MAGNETICALLY COUPLED PHASES - Polyphase converter, comprising a plurality of electrical phases ( | 09-19-2013 |
20130271108 | CELLULAR POWER SUPPLY NETWORK, INTELLIGENT GATEWAY AND POWER SUPPLY CONTROL METHOD THEREOF - The embodiments of the present invention provide a cellular power supply network, an intelligent gateway and a power supply control method thereof. The cellular power supply network further comprises: at least one cellular power supply layer formed by a plurality of transformers connected as a cellular structure. In the embodiments of the present invention, the electricity energy can be transferred from one transformer to another transformer demanding power as needed, so that the power is more reasonably distributed and the energy utilization rate is improved. In the technical solutions of the present invention, when a certain transformer cannot work normally due to a fault, the electricity energy outside the transformer can be introduced into the user of the transformer using the cellular power supply network, so as to keep continuous power usage. Meanwhile, the transformer can be separated from the power supply network for repairing and maintenance. | 10-17-2013 |
20140021937 | CONVERTER SYSTEM - A converter system includes a first converter, a second converter, and a first inter-phase transformer. The first converter is electrically connected to the second converter in parallel between a first input terminal parallel end and a first output terminal parallel end. The first inter-phase transformer is disposed at the first input side parallel terminal or the first output side parallel terminal, and the first inter-phase transformer is operable to restrain a circulating current generated by the first converter and the second converter. | 01-23-2014 |
20140266146 | CURRENT DISTRIBUTION APPARATUS - A current distribution apparatus comprising a common current source arranged to deliver an input current into a plurality of branches such that the input current is distributed into a plurality of individual branch currents, wherein each of the plurality of branches includes an inductive arrangement arranged to form an inductive coupling with an associated inductive arrangement of at least one other associated branch. | 09-18-2014 |
20150028844 | COUPLING DEVICE FOR A MULTI-PHASE CONVERTER - The invention relates to a coupling device ( | 01-29-2015 |
20160098054 | COUPLED-INDUCTOR CORE FOR UNBALANCED PHASE CURRENTS - An embodiment of a coupled-inductor core includes first and second members and first and second forms extending between the first and second members. The first form has a parameter (e.g., length) of a first value, and is operable to conduct a first magnetic flux having a first density that depends on the first value of the parameter. The second form is spaced apart from the first form, has the parameter (e.g., length) of a second value different from the first value, and is operable to conduct a second magnetic flux having a second density that depends on the second value of the parameter. Because two or more of the forms of such a core may have different values for the same parameter, the core may be suitable for use in a multiphase power supply where the currents through the phases are unbalanced. | 04-07-2016 |