Class / Patent application number | Description | Number of patent applications / Date published |
336173000 | INTERLINKED COILS OR WINDINGS (E.G., CURRENT TRANSFORMER) | 19 |
20100045417 | Large current sensor - A large current sensor is disclosed. In at least one embodiment, the large current sensor includes a primary coil and a secondary coil, wherein the primary coil is in a spiral form and forms a cavity, and the secondary coil is disposed in the cavity for producing an induced secondary voltage when a primary current flows in the primary coil. Advantages of the large current sensor of at least one embodiment of the present invention can include that it is simple in structure, safe in operation, and its out signal has high linearity and high accuracy and it can supply power to an electronic trip unit. | 02-25-2010 |
20110248809 | Inductor Structure - An inductor structure includes a first inductor and a second inductor. The second inductor includes a loop that surrounds the first inductor. The first inductor includes a first loop and a second loop, and a crossover section coupling the first loop to the second loop so as to cause current flowing through the first inductor to circulate around the first loop in a first rotational direction and around the second loop in a second rotational direction opposite to the first rotational direction; wherein the first and second inductors are arranged in an equilibrated configuration about a first axis that bisects the inductor structure such that the first loop is on one side of the first axis and the second loop is on a second side of the first axis, such that the magnetic interaction between the inductors due to current flow in the inductors is cancelled out. | 10-13-2011 |
20120086536 | High Frequency Power Transformer and Method of Forming - A high frequency power transformer including a first winding, a second winding and a core, wherein: the core is arranged to encompass at least a portion of the second winding, the second winding includes at least two winding apertures that pass through the second winding, and the first winding is arranged to pass through the at least two winding apertures. | 04-12-2012 |
20130300529 | COIL STRUCTURE AND ELECTROMAGNETIC COMPONENT USING THE SAME - An electromagnetic component including a multi-layer, spiral coil structure embedded in a molded body is disclosed. Each layer of the coil structure makes approximately one and a quarter turns of a winding. Each layer of the coil structure has a loose middle segment, two slim end segments overlapping each other with a spacing therebetween, and tapered neck segments respectively connecting the loose middle segment with the two slim end segments. | 11-14-2013 |
20140176275 | AUTOMATIC SWITCHABLE LOW THRESHOLD CURRENT POWER SUPPLY - A device connectable to a power line conductor includes an electrically conductive insulated first winding of wire wound into at least two turns having a first end and a second end. The first end is configured to be attached to a first power line conductor. An electrically conductive insulated second winding of wire wound into at least one turn. The second winding of wire includes a first end connected to the second end of the first winding of wire and a second end is configured to be attached to a second power line conductor. An automatic switchable connecting device is configured to move between a first position with the first winding of wire in series with the first and the second power line conductors and a second position with the first and the second power line conductors and the first and second windings of wire in series. | 06-26-2014 |
20140176276 | SWITCHABLE LOW THRESHOLD CURRENT POWER SUPPLY - A device connectable to a power line conductor includes an electrically conductive insulated first winding of wire wound into at least two turns having a first and a second end. The first end is configured to be attached to a first power line conductor. An electrically conductive insulated second winding of wire wound into at least one turn having a first end connected to the second end of the first winding of wire and a second end is configured to be attached to a second power line conductor. A switchable connecting device is configured to move between a first position connecting the first and second power line conductors in series, a second position connecting the first winding of wire in series with the first and the second power line conductors, and a third position connecting the first and second power line conductors and the first and second windings of wire in series. | 06-26-2014 |
20140210584 | LOW PROFILE HIGH CURRENT COMPOSITE TRANSFORMER - A low profile high current composite transformer is disclosed. Some embodiments of the transformer include a first conductive winding having a first start lead, a first finish lead, a first plurality of winding turns, and a first hollow core; a second conductive winding having a second start lead, a second finish lead, a second plurality of turns, and a second hollow core; and a soft magnetic composite compressed surrounding the first and second windings. The soft magnetic composite with distributed gap provides for a near linear saturation curve. | 07-31-2014 |
20140218153 | STEP UP OR STEP DOWN MICRO-TRANSFORMER WITH TIGHT MAGNETIC COUPLING - A system and method for manufacturing of a micro-transformer providing direct electrical isolation between a primary winding and a secondary winding while featuring tight magnetic coupling for a large possible step-up or step-down ratio. The micro-transformer may be implemented in an integrated circuit, and may include a magnetic core. A high stepping ratio, e.g. approximately 50 to 100, may be achieved by connecting multiple symmetric primary windings in parallel and multiple symmetric secondary windings in series, or vice-versa. A plurality of windings may be stacked vertically. The micro-transformer may be of particular utility in wireless sensor networks, thermal and vibrational energy harvesters, power converters, and signal isolators. | 08-07-2014 |
20140306788 | FILTER COMPONENT - A filter component is provided with a first winding wire, a second winding wire having a separate electric current supply from the first winding wire, and a third winding wire connected in series with the first winding wire. The first, second, and third winding wires are wound on a magnetic core. The magnetic core has a shape that allows a formation of a first magnetic path having the first and second winding wires interlinked therewith without having the third winding wire interlinked therewith, and a formation of a second magnetic path having the first and third winding wires interlinked therewith without having the second winding wire interlinked therewith. Further, the electric current flow directions of the first and second winding wires are opposite and the electric current flow directions of the first and third winding wires are the same. | 10-16-2014 |
20140347155 | MULTI-TURN HIGH DENSITY COIL AND FABRICATION METHOD - A multi-turn electrical coil and fabrication method uses a plurality of identically constructed flat electrical conductors, alternating ones of which carry an electrically insulating material layer on one major surface. The bare conductors and the insulated conductors are alternatingly stacked about mounting posts in partially overlapped and partially laterally offset pairs of conductors, with each conductor in each conductor pair reoriented relative to the other conductor in the respective conductive pair, and alternating conductor pairs reoriented relative to adjacent conductor pairs, to form a spiral winding turn for the coil. | 11-27-2014 |
20150325361 | Winding Arrangement for Inductive Components and Method for Manufacturing a Winding Arrangement for Inductive Components - A winding arrangement for inductive components includes a first winding section comprising at least one first winding, the at least one first winding comprising at least two electrically isolated parallel flat band conductors being configured as a first flat band stack, a second winding section comprising at least one second winding, the at least one second winding comprising at least two electrically isolated parallel flat band conductors being configured as a second flat band stack. The first ends of the flat band conductors of the first winding section are cross connected in a cross connection to first ends of the flat band conductors of the second winding section such that a first current flow stacking sequence in the first flat band stack is reversed to a second current flow stacking sequence in the second flat band stack. | 11-12-2015 |
20160027571 | ULTRA-HIGH COUPLING FACTOR MONOLITHIC TRANSFORMERS FOR INTEGRATED DIFFERENTIAL RADIO FREQUENCY AMPLIFIERS IN SYSTEM-ON-CHIP DEVICES - An ultra-high coupling factor transformer has a plurality of conductive layers, a primary winding inductor, and a secondary winding inductor. The primary winding inductor is defined by a plurality of turns and disposed on a first one of the plurality of conductive layers and extends to a second one of the plurality of conductive layers. The secondary winding inductor is defined by a plurality of turns and disposed on the first one of the plurality of conductive layers and extends to the second one of the plurality of conductive layers. The primary winding is vertically and horizontally cross coupled with the secondary winding inductor, and defines a mutual coupling inductance from surrounding directions. | 01-28-2016 |
20190148479 | INTEGRATED INDUCTOR | 05-16-2019 |
336174000 | Coil surrounding linear conductor | 6 |
20100148906 | POWER ACQUISITION DEVICE AND POWER ACQUISITION METHOD - A power acquisition device fixed to an illuminating device having a fluorescent tube and a reflective plate so as to acquire power from a magnetic field generated by an alternating current flowing through the fluorescent tube by electromagnetic induction. The power acquisition device is fixed so as to surround the fluorescent tube and at least one of the thickness in the direction perpendicular to the surface of the fluorescent tube and the length in the direction parallel to the length direction of the fluorescent tube is non-uniformly. Assuming that the area where the reflective plate exists in the direction perpendicular to the surface of the fluorescent tube is a first area, and the area where the reflective plate does not exist in the direction perpendicular to the surface of the fluorescent tube is a second area, at least one of the thickness in, the direction perpendicular to the surface of the fluorescent tube and the length in the direction parallel to the length direction of the fluorescent tube is non-uniformly in the first and second areas. | 06-17-2010 |
20100176904 | CURRENT DETECTION PRINTED BOARD, VOLTAGE DETECTION PRINTED BOARD, AND CURRENT/VOLTAGE DETECTOR USING SAME, AND CURRENT DETECTOR AND VOLTAGE DETECTOR - A current detection printed board includes: a board having a penetration hole that penetrates the board; and at least one wire that is formed in a coiled shape having both ends by penetrating the board along the periphery of the penetration hole and alternately connecting a front surface layer and a rear surface layer of the board, wherein, when a conductor, in which an AC current flows, is disposed to pass through the inside of the penetration hole, a current flowing in the wire is output through electromagnetic induction. | 07-15-2010 |
20120218070 | INSULATING SUPPORT FLANGE FOR CURRENT LOOP SYSTEM - The present invention relates generally to systems and methods for isolating a current loop conductor of a current loop system of a pre-charge circuit from a plurality of current transformers disposed around the current loop conductor. In particular, the embodiments described herein include an insulating support flange having a first tubular section, a second tubular section radially disposed around the first tubular section and connected to the first tubular section via a solid annular section extending radially outward from the first tubular section to a first end of the second tubular section, an annular base extending radially outward from a second end of the second tubular section, and a plurality of prongs extending axially from or near to an outer circumference of the annular base, wherein each of the prongs comprises an end face that is angled toward the second tubular section. The insulating support flanges are configured to mate with each other along an axial direction of the current loop conductor. In addition, each of the plurality of current transformers is installed (i.e., held in place) between the prongs, annular base, and second annular section of its respective insulating support flange. As such, a fixed open air space between the first and second annular sections of the insulating support flanges isolates the current transformers from the current loop conductor, thereby reducing the possibility of discharge between the current transformers and the current loop conductor. | 08-30-2012 |
20130120094 | CURRENT TRANSFORMER - A current transformer comprises a plurality of primary conductors (L,N) passing through a ferromagnetic core ( | 05-16-2013 |
20140009253 | CURRENT TRANSFORMER - An improved current transformer has a ring shaped core and a plurality of windings wound around the ring shaped core. The ring shaped core has a rectangular cross sectional area configured to provide a current transformer current rating of at least 375 amperes. | 01-09-2014 |
20140125441 | LARGE-CURRENT TRANSFORMER FOR ELECTRONIC ROUND POWER METER AND METHOD OF MAKING - Disclosed is a large-current transformer for an electronic round power meter, including a current sampling coil ( | 05-08-2014 |