For Transformer Patents (Class 361/836)
  • Patent number: 9649995
    Abstract: A utilities pod (10) for a vehicle, especially a caravan. The pod is removably mounted underneath the cabin structure and contains utilities apparatus such as a water heater, space heater (62), battery and water tank (60). The pod is connected to the cabin of the vehicle by an interface unit having multiple ports (18) by which said respective utility services are provided to the cabin. The interface unit is configured for installation in the floor of said cabin such that the ports are exposed to the interior of the cabin structure.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 16, 2017
    Assignee: Munster Simms Engineering Limited
    Inventors: David Smyth, Patrick Hurst, Richard Bell, Richard Bovill
  • Patent number: 9579906
    Abstract: A heat exchange unit and a printing system containing the heat exchange unit, including a heat exchange region, a first print media transport path configured for transporting in operation a first print medium from a supply through the heat exchange, the heat exchange unit further containing a stationary heat exchange member, having a first side facing said first print media transport path and a second opposite side facing said second print media transport path, wherein, in operation, the second print medium is at an elevated temperature with respect to the first print medium and wherein, the first and second print medium have a heat exchange contact in the heat exchange region.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: February 28, 2017
    Assignee: OCE-TECHNOLOGIES B.V.
    Inventors: Peter J. Hollands, Rick Walraven, Eddy J. A. Van De Gaar, Frederik G. Heeman, Cornelis P. M. Van Heijst
  • Patent number: 9353524
    Abstract: Systems and methods which utilize a connection panel having multiple connection types in order to connect supplemental or emergency utility services to a building are provided. The connection panel may be pre-fabricated or engineered to simplify construction and subsequent utility connections. Further, embodiments may dispose standardized utility connections on the connection panel. Upon connecting supplemental sources to the connection panel, embodiments may also include switching systems, such as valves, electrical switches, etc., configured to connect the supplemental sources to infrastructure located in the building.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: May 31, 2016
    Assignee: University of Utah Research Foundation
    Inventor: David J. Quinlivan
  • Publication number: 20150070869
    Abstract: An improved transformer arrangement of a wind turbine is provided. A wind turbine transformer arrangement comprises a transformer that is arranged in the wind turbine. The transformer comprises a housing. The transformer housing is filled with an oil. The transformer arrangement comprises at least one decompression chamber and the interior of the transformer housing is connected to the interior of the decompression chamber by a pressure release tube in a way that an increase in the pressure in the transformer housing due to a malfunction of the transformer is transferred through the pressure release tube into the decompression chamber.
    Type: Application
    Filed: June 30, 2014
    Publication date: March 12, 2015
    Inventors: JESPER GAARD, THORKIL MUNK-HANSEN, JACOB BLACH NIELSEN, CARSTEN K. RASMUSSEN
  • Patent number: 8964410
    Abstract: A transformer has two magnetic cores, at least one primary winding unit mounted in the magnetic cores, at least one secondary winding unit mounted in the magnetic cores and two rectifying circuit boards externally mounted beside the magnetic cores. An AC voltage output from the secondary winding unit is transmitted to and rectified by the rectifying circuit board. Therefore, the size of the transformer is compact, and heat energy generated by electronic elements mounted on the rectifying circuit board is effectively dissipated to maintain normal operation of the transformer. Further, since the transmission path from the secondary winding unit to the rectifying circuit board is short, energy loss is reasonably reduced when the transformer is operated under a high frequency situation or a larger current mode.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: February 24, 2015
    Assignee: Acbel Polytech Inc.
    Inventors: Shun-Te Chang, Chien-Hua Wu, Chia-An Yeh, Hsiang-Yu Hung
  • Patent number: 8912639
    Abstract: Aspects of a method and system for configuring a transformer embedded in a multi-layer integrated circuit package are provided. In this regard, a windings ratio of a transformer embedded in a multi-layer IC package bonded to an IC may be configured, via logic, circuitry, and/or code in the IC, based on signal levels at one or more terminals of the transformer. The transformer may comprise a plurality of inductive loops fabricated in transmission line media. The integrated circuit may be flip-chip bonded to the multi-layer package. The IC may comprise a signal strength indicator enabled to measure signal levels input to or output by the transformer. The windings ratio may be configured via one or more switches in the IC and/or in the multi-layer package. The IC and/or the multi-layer package may comprise ferromagnetic material which may improve magnetic coupling of the transformer.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: December 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Publication number: 20140340794
    Abstract: The transformer module comprises a transformer, a network IC module, and a body. The body has a containing space for encapsulating the transformer and the network IC module. A plurality of upper terminals is set on a top side of the transformer, and the transformer is electrically connected with the network IC module through the plurality of upper terminals, so as to stack the network IC module on the top side of the transformer. A network connector can electrically connect with the transformer and the network IC module of the transformer module in order when being connected with the transformer module through a computer mainboard.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 20, 2014
    Inventor: Nai-Chien CHANG
  • Patent number: 8692540
    Abstract: The size of a status indicator for monitoring a current in a power cable is reduced by integrating a bobbin for the secondary winding with a current transformer core and integrating a circuit board including output terminals with a current transformer assembly.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: April 8, 2014
    Assignee: Veris Industries, LLC
    Inventor: James Bernklau
  • Patent number: 8570768
    Abstract: A transformer assembly is disclosed. An example circuit board assembly includes a circuit board. A drum core inductor is also included and has a drum core, a first winding, and first and second terminals extending from a first end of the drum core inductor. A wire of the first winding is wound around an axis of the drum core. The first winding has first and second ends coupled to the first and second terminals of the drum core inductor, respectively. A bobbin has first and second terminals extending from a first end of the bobbin. A wire of a second winding is wound around an axis of the bobbin. The second winding has first and second ends coupled to the first and second terminals of the bobbin, respectively. The first ends of the drum core inductor and the bobbin are attached to a circuit board such that the drum core inductor is positioned on the circuit board inside an opening of the bobbin defined along the axis of the bobbin. The drum core inductor and the bobbin are detached from one another.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: October 29, 2013
    Assignee: Power Integrations, Inc.
    Inventor: Eng Hwee Quek
  • Publication number: 20130194774
    Abstract: A transformer enclosure has a hood and sill attached to a tank. The hood is retractable upon hinges connected to the top face of the tank. The sill is attached to the front face of the tank near the base and has a gate that drops down to an expanded position. When the enclosure is in a closed position, the hood and sill meet with the sill gate fully retracted along a tamperproof interface. A tamperproof interface is formed at the side of the enclosure by a flange on the side panels of the sill and a baffle on the bottom edges of the hood. A tamperproof interface is formed at the front of the enclosure by a bend and lip formed in the front panel of the hood in cooperation with a recessed portion formed in the gate.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Applicant: ABB Inc.
    Inventors: Thomas Alan Ward, Virgil Bryan Zweifel
  • Patent number: 8498124
    Abstract: A magnetic component provides both electrical interconnectivity and mechanical support between stacked circuit boards. The magnetic component includes a bobbin structure and a magnetically permeable core. The bobbin structure includes an upper bobbin pin rail and a lower bobbin pin rail. The upper bobbin pin rail includes one or more upper bobbin pins extending from the upper bobbin pin rail. Each upper bobbin pin may be adapted for soldering onto a first circuit board. At least one lower bobbin pin extends from the lower bobbin pin rail. Each lower bobbin pin may also be adapted for soldering onto a second circuit board, forming a circuit board assembly. Each soldered connection between a bobbin pin and a circuit board may provide an electrical connection between the circuit board and the magnetic component. Each soldered connection may also provide a mechanical attachment between a printed circuit board and the magnetic component.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: July 30, 2013
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, Mark Bauer, Travis Berry, Mike LeBlanc
  • Publication number: 20130188329
    Abstract: A transformer has two magnetic cores, at least one primary winding unit mounted in the magnetic cores, at least one secondary winding unit mounted in the magnetic cores and two rectifying circuit boards externally mounted beside the magnetic cores. An AC voltage output from the secondary winding unit is transmitted to and rectified by the rectifying circuit board. Therefore, the size of the transformer is compact, and heat energy generated by electronic elements mounted on the rectifying circuit board is effectively dissipated to maintain normal operation of the transformer. Further, since the transmission path from the secondary winding unit to the rectifying circuit board is short, energy loss is reasonably reduced when the transformer is operated under a high frequency situation or a larger current mode.
    Type: Application
    Filed: December 6, 2012
    Publication date: July 25, 2013
    Applicant: ACBEL POLYTECH INC.
    Inventor: ACBEL POLYTECH INC.
  • Publication number: 20130058070
    Abstract: A transformer chamber for a wind turbine is described. The transformer chamber includes a liquid-tight tank for receiving a liquid-filled, in particular oil-filled, transformer, a wind turbine structure component includes a component bedframe adapted for receiving such a transformer chamber and a wind turbine includes such a transformer chamber and such a wind turbine structure component. Furthermore, a method for assembling a wind turbine is described.
    Type: Application
    Filed: August 24, 2012
    Publication date: March 7, 2013
    Inventors: Jesper Gaard, Thorkil Munk-Hansen, Jacob Blach Nielsen, Alex Yundong Wang
  • Patent number: 8274181
    Abstract: A structure for transmission in a power supply, particularly to a power structure for transmission for bearing large DC current, wherein the power supply includes a power input port for connecting to DC input power and a DC/DC conversion circuit for converting the DC input power into DC output power. The architecture including at least one power transmission board for disposing the power input port, wherein the power transmission board is electrically connected to the power process board with the DC/DC conversion circuit mounted thereon by at least one power conduction element. Therefore, through the power conduction elements replacing the conventional connecting wires with large diameter to connect the power input port and the power process board without disobeying the safety regulation, not only the space occupied by the bent connection wires can be reduced, but the collisions and damage to other components caused therefrom also can be avoided.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: September 25, 2012
    Assignees: FSP Technology Inc., 3Y Power Technology (Taiwan), Inc.
    Inventor: Shao-Feng Lu
  • Patent number: 8203853
    Abstract: A chip filter and supplementary tool combination is disclosed. The chip filter includes a insulative holder base having two arrays of wire grooves arranged along two opposing sidewalls thereof and soldering zones defined in a finished surface on each sidewall corresponding to the wire grooves, connection terminals each having a base portion respectively embedded in the soldering zones in the sidewalls of the insulative holder base and a soldering surface respectively kept in flush with the top edge of the associating sidewall, and filter elements having lead wires thereof respectively extending out of the insulative holder base through the wire grooves and respectively rested on the soldering surfaces of the connection terminals and held down in position by the supplementary tool for soldering by an automatic soldering machine.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 19, 2012
    Assignee: U.D. Electronic Corp.
    Inventor: Po-Jung Chen
  • Patent number: 8198714
    Abstract: Aspects of a method and system for configuring a transformer embedded in a multi-layer integrated circuit package are provided. In this regard, a windings ratio of a transformer embedded in a multi-layer IC package bonded to an IC may be configured, via logic, circuitry, and/or code in the IC, based on signal levels at one or more terminals of the transformer. The transformer may comprise a plurality of inductive loops fabricated in transmission line media. The integrated circuit may be flip-chip bonded to the multi-layer package. The IC may comprise a signal strength indicator enabled to measure signal levels input to or output by the transformer. The windings ratio may be configured via one or more switches in the IC and/or in the multi-layer package. The IC and/or the multi-layer package may comprise ferromagnetic material which may improve magnetic coupling of the transformer.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: June 12, 2012
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8081491
    Abstract: A highly accurate current sensing transformer, such as an external neutral current transformer (ENCT), accommodates a wide range of loads. The ENCT includes a housing, first and second terminals each having an end portion extending from and external to the housing, a conductor for carrying a current to be measured, and a current sensor having an aperture for receiving the conductor and having a central axis. The conductor joins the first and second terminals to form a current path that passes through the aperture. Increased accuracy is achieved by arranging the conductor such that a portion thereof passing through the aperture forms a substantial angle relative to the central axis, such that the entry angle of the current path via the conductor through the aperture of the current sensor of the ENCT matches an entry angle of a conductor through an aperture of a current sensor in the electronic trip unit to which the ENCT is attached.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: December 20, 2011
    Inventors: Brent W. De Geus, Dennis W. Fleege, Randy L. Siebels, Salaheddine Faik, Steve A. De Cook, Marcel Montemayor Cavazos, Ignacio Dapic Rodriguez, Ernesto Kim Gomez Bock
  • Patent number: 8044307
    Abstract: A power transformer/reactor immersed in oil including a transformer/reactor core and windings accommodated in a tank including a tank base plate and tank walls. A foundation supports the tank. An elongated continuous band forming a closed frame is arranged between the base plate and the foundation. An outer periphery of the base plate extends outside an inner periphery of the frame and thereby encloses an air volume within the frame, the base plate and foundation. The tank support reduces sound emitted from the transformer/reactor.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: October 25, 2011
    Assignee: ABB Technology Ltd.
    Inventors: Jan Anger, Mats Bernesjö, Ramsis Girgis
  • Patent number: 8004850
    Abstract: The present system and method relate to an arrangement of electrical and/or mechanical components on a large, flexible foil-type conductor area and a method for producing such an arrangement. The flexible foil-type conductor can be easily and flexibly handled and is inexpensive and process-reliable.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: August 23, 2011
    Assignee: Conti Temic Microelectronic GmbH
    Inventors: Turhan Büyükbas, Matthias Gramann, Klaus Scharrer, Peter Guth, Joachim Buhl, Dominik Klein, Bernhard Schuch, Tilo Liebl
  • Patent number: 7965494
    Abstract: The combined ballast apparatus provides dual function, as both slave ballast and emergency battery ballast, without the expense of a dual installation of ballast onto or into a light fixture. The apparatus is further designed for best efficiency in mounting and in service and removal. The mount holes and quick clips provide for installation to existing fixtures without the need for screwdrivers, for example. The quick connects allow the apparatus to be quickly plugged and unplugged from a light fixture, without having to strip wires and use wire nuts or the like. If equipped with the apparatus and needing a ballast change, the fixture is serviced in a matter of perhaps ¼ to ? the time previously required, without the litter.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: June 21, 2011
    Inventors: Michael P. Morris, Emily D. Morris
  • Patent number: 7948771
    Abstract: An electrical component (100) includes a housing (1), a number of terminals (2) molded within housing and at least one electrical element (3). The housing has at least a side wall (11) having a number of recesses (112) and an internal cavity (15). Each terminal has a first end (23) extending to a bottom of the side wall and formed with a platform portion (231) located onto the bottom of the side wall and aligned with the corresponding recess. The electrical element has a number of wires (321) wrapped thereon. One end of the wire extends outward the cavity through the recess and is soldered onto the corresponding platform portion.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: May 24, 2011
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Hong-Bo Zhang, Zheng-Hua Xu, Chao-Dong Huang
  • Patent number: 7898822
    Abstract: A holder holds an electrical component having wire ends that act as electrical connections. The holder includes a body having a center part. The center part has a recess for holding the component. Side walls of the recess have slots for guiding wire ends of the component. The recess and the slots are open at a same side of the body.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: March 1, 2011
    Assignee: EPCOS AG
    Inventors: Günter Feist, Klaus Zimmermann
  • Publication number: 20110019387
    Abstract: A highly accurate current sensing transformer, such as an external neutral current transformer (ENCT), accommodates a wide range of loads. The ENCT includes a housing, first and second terminals each having an end portion extending from and external to the housing, a conductor for carrying a current to be measured, and a current sensor having an aperture for receiving the conductor and having a central axis. The conductor joins the first and second terminals to form a current path that passes through the aperture. Increased accuracy is achieved by arranging the conductor such that a portion thereof passing through the aperture forms a substantial angle relative to the central axis, such that the entry angle of the current path via the conductor through the aperture of the current sensor of the ENCT matches an entry angle of a conductor through an aperture of a current sensor in the electronic trip unit to which the ENCT is attached.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 27, 2011
    Applicant: Square D Company
    Inventors: Brent W. De Geus, Dennis W. Fleege, Randy L. Siebels, Salaheddine Faik, Steve A. De Cook, Marcel Montemayor Cavazos, Ignacio Dapic Rodriguez, Ernesto Kim Gomez Bock
  • Publication number: 20100277886
    Abstract: Power transformer/reactor immersed in oil comprising transformer/reactor core and windings accommodated in a tank (100) comprising tank base plate (110) and tank walls (120), a foundation (500) supporting the tank. An elongated continuous band (310) forming a closed frame (300) is arranged between the base plate (110) and the foundation (500) and the outer periphery of the base plate (110) extends outside the inner periphery of the frame (300) and thereby enclosing an air volume within the frame (300), the base plate (110) and foundation (500). The tank, support reduces the sound emitted from the transformer/reactor.
    Type: Application
    Filed: December 18, 2007
    Publication date: November 4, 2010
    Applicant: ABB Technology Ltd.
    Inventors: Jan Anger, Mats Bernesjö, Ramsis Girgis
  • Publication number: 20090273425
    Abstract: The present invention is related to power supply centers. The power supply centers of the present invention may be self-contained modular units. The power supply centers may have between one or more primary taps, a switch or dimmed tap to compensate for losses when dimming. The power supply centers may also have one or more secondary taps to provide secondary voltages of 11-30V depending upon the secondary voltage of the power supply center. Loads may be connected up the one or more secondary taps up to the full watt rating of the power supply center. In accordance with the power supply centers of the present invention, it is possible that loads at varying distances from the power supply center can be tapped on different taps to recover voltage drop and produce between 85% and 100% light output if the lighting system has been wired properly.
    Type: Application
    Filed: April 27, 2009
    Publication date: November 5, 2009
    Inventor: John M. Tremaine
  • Patent number: 7514881
    Abstract: The discharge lamp lighting apparatus includes a power section operating to generate a high voltage to be applied to a discharge lamp to trigger electrical discharge within the discharge lamp and to generate an AC voltage to be supplied to the discharge lamp to keep the discharge lamp in a stable lighting state, and a control section controlling operation of the power section. The power section and the control section are installed separately within an enclosure of the discharge lamp lighting apparatus.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: April 7, 2009
    Assignee: DENSO CORPORATION
    Inventor: Koichi Kato
  • Publication number: 20090046402
    Abstract: A medical electrical equipment power supply is configured to satisfy at least one industry standard for patient leakage current. The power supply is provided with a plurality of electrical sockets into which IV pumps, patient monitors and other equipment may be plugged in. In one embodiment, the power supply has a housing configured to be mounted on an IV pole. An isolation transformer within the housing helps reduce the total patient leakage current to a value that satisfies at least one industry standard for patient leakage current. In another embodiment devoid of an isolation transformer, the power supply's electrical circuit detects whether the patient leakage current exceeds a predetermined value based on the industry standard, and disconnects power to one or more sockets so as to maintain the patient leakage current below this predetermined value.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Applicant: American IV, Inc.
    Inventors: Tim Malkus, Kenneth M. Eshenbaugh, Richard Stacey, John O. Taylor
  • Patent number: 7491901
    Abstract: An inverter (10) includes a circuit board (20) including a transformer (40) disposed thereon, and a shield cage assembly (60) for enclosing the transformer. The shield cage assembly includes an insulative cage (602) defining an inner receiving space (6028) for receiving the transformer, a first conductive cage (604) defining a first receiving space (6048) for receiving the insulative cage, and a second conductive cage (606) defining a second receiving space (6068) for receiving the first conductive cage. The shield cage assembly blocks EMI emitted by the transformer from interfering with electronic components out of the shield cage assembly, thus enabling the electronic components to perform more reliably.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: February 17, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Fa-Ning Lu
  • Publication number: 20080055814
    Abstract: Disclosed is a lamp transformer and method of assembling a lamp transformer within an igniter module or housing. The lamp transformer comprises a potted bar core transformer; and a carrier attached to the potted bar core transformer, the carrier adapted to position the potted bar core transformer on a pc board and/or within a housing at a predetermined location. In addition, disclosed is a transformer winding and potting method utilizing a transformer carrier.
    Type: Application
    Filed: December 27, 2006
    Publication date: March 6, 2008
    Inventors: Viktor Karoly Varga, Bruce Roberts
  • Publication number: 20080055879
    Abstract: Disclosed is a lamp transformer and method of assembling a lamp transformer within an igniter module or housing. The lamp transformer comprising a potted bar core transformer; and a carrier attached to the potted bar core transformer, the carrier adapted to position the potted bar core transformer on a pc board at a predetermined location.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: Viktor K. Varga, Bruce Roberts
  • Patent number: 7019996
    Abstract: A power converter may employ a planar transformer to minimize winding conduction loss, and the switching devices of the power converter may be aligned in lines parallel to an edge of the planar transformer to minimize the termination leakage inductance. The windings of the planar transformer may be thermally conductively coupled to one or more heat sinks carried by a circuit board which are with respective ones of the switching devices, to provide a cooling path for the planar transformer.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: March 28, 2006
    Assignee: Ballard Power Systems Corporation
    Inventors: Lizhi Zhu, John M. Van Dyke, Richard J. Hampo
  • Patent number: 6754066
    Abstract: A cabinet for an uninterrupted power source (UPS) is disclosed. The cabinet has three portions that characterize the frame. A front portion contains capacitor assemblies, power DC Link, power electronic components, and a control panel. The control panel and power DC Link are situated for front access and cover the power electronic components and capacitors. A rear portion holds a plurality of magnetic components. The magnetic components are accessible from the back of the cabinet and can be installed last in the assembly of the cabinet and configured for a specific voltage rating. A bus portion is divided from the front and rear portions and contains the bus bars for electrical connection of the UPS.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: June 22, 2004
    Assignee: Liebert Corporation
    Inventors: Kylam D. Doan, Ron Williams, James K. Martin, Randall Mathis, Mike Harper
  • Publication number: 20040027223
    Abstract: The connecting pin structure for a transformer core includes an insulating main body having a plurality of recesses therein at its bottom; a plurality of connecting pins installed in the plurality of recesses therein at the bottom of the insulating main body; and at least one coil secured on the insulating main body, the coil has terminal wirings respectively being connected to the connecting pins. The occupied laterally expanded dimension on a printed circuit board (PCB) of the connecting pins is reduced. Further, the L-shaped connecting pins are easy to assembly.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventor: Wen-Hao Hsu
  • Patent number: 6628531
    Abstract: A multi-layer micro-printed circuit board (PCB) is disclosed, which defines a magnetic component, such as a transformer, using planar technology. Instead of using the traditional twelve-layer PCB incorporating both a primary and a secondary winding, this invention stacks multiple PCBs, each having four or six layers and each including a single winding (either the primary or the secondary). The PCBs are stacked in an offset arrangement such that the pins penetrating the PCB or PCBs including the primary winding or windings do not penetrate the PCB or PCBs including the secondary winding or windings. Additionally, this offset arrangement prevents the pins penetrating the secondary PCBs from penetrating the primary PCBs in the same manner. This offset configuration thereby avoids significant flashover problems associated with current planar components.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: September 30, 2003
    Assignee: Pulse Engineering, Inc.
    Inventor: Majid Dadafshar
  • Publication number: 20020158744
    Abstract: The invention provides an apparatus and manufacturing methods useful in the manufacture of large transformer cores, particularly, in the manufacture of large transformer cores made of a ferromagnetic material, especially of annealed amorphous metal alloys. The invention further provides transformer cores produced utilizing the inventive apparatus and manufacturing methods, as well as finished transformers which include such transformer cores.
    Type: Application
    Filed: April 25, 2001
    Publication date: October 31, 2002
    Inventors: Dung A. Ngo, Kimberly M. Borgmeier
  • Patent number: 6466454
    Abstract: A new packaging technology which improves the electrical and mechanical performance of the circuits using magnetic elements. High frequency current loops generate electromagnetic fields which are radiated or induce high frequency current in the rest of the circuit. To reduce the radiated field, these loops have been minimized by locating the high frequency switching components close to each other and very close to the magnetic elements. By separating the high frequency switching electronic components from the rest of the electronic components and locating them on the same multilayer PCB where the magnetic element is constructed, optimal results are obtained.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: October 15, 2002
    Assignee: Ascom Energy Systems AG
    Inventor: Ionel Jitaru
  • Patent number: 6441713
    Abstract: In a discharge lamp apparatus for a vehicle, it is determined that a grounded condition is present when a lamp voltage is less than a predetermined voltage and a lamp current is less than a predetermined current. Electric power supply to the lamp is stopped temporarily in response to the determination of the grounded condition, and then the lighting operation is restarted again. If the grounded condition is determined again, the above operation is repeated. If this repetition continues for a predetermined period, the lighting operation is disabled continuously. In controlling the lamp, a voltage of a battery is boosted by a voltage booster transformer, which is turned on and off by a MOS transistor so that electric power supplied to the lamp is duty-controlled. An upper limit is set to the duty ratio, and the upper limit is increased as the lamp current decreases, so that the lighting characteristics of the lamp is improved.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: August 27, 2002
    Assignees: Denso Corporation, Koito Manufacturing Co., Ltd.
    Inventors: Hiroaki Okuchi, Yasushi Noyori, Tomoyuki Funayama
  • Patent number: 6301127
    Abstract: In the case where a power supply circuit assembly having a small transformer and various electronic components mounted on a mounting substrate is housed in an insulating case, and the case is filled with a resin, the occurrence of cracks at soldering parts situated around the roots of pin terminals projecting from a lower surface of the mounting substrate is avoided. In a circuit block configured in such a manner that an assembly (1) comprising a mounting substrate (2) constituting the power supply circuit is housed in a case (13), and the case (13) is filled with a resin (14), primary-side pin terminals (11) and secondary-side pin terminals (12) are formed to have an L-shape, and their linear portions pass through a coil bobbin (6).
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: October 9, 2001
    Assignee: Tamura Corporation
    Inventor: Toshihiko Kobayashi
  • Patent number: 6247767
    Abstract: A computer enclosure exclusively mounts two differently sized power supplies. The computer enclosure includes a rear panel having a first opening for directly mounting a first power supply, a base panel having a fixing portion near the first opening, and a mounting bracket having a second opening for mounting a second power supply to the rear panel. The second power supply has a smaller dimension than the first power supply. The mounting bracket is assembled with the second power supply. An electrical socket and venting holes of the second power supply is exposed to an exterior of the computer enclosure through the second opening. The assembly of the mounting bracket and the second power supply is mounted to the rear panel and the base panel. The second opening aligns with the first opening for connecting the socket of the second power supply with an outside power source and for exposing the venting holes to the exterior of the enclosure.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: June 19, 2001
    Assignee: Hon Hai - Precision Ind. Co., Ltd.
    Inventors: Alvin Liu, Yun-Lung Chen
  • Patent number: 6247074
    Abstract: A portable computer has a modem telephone line expansion system, and includes: modem circuitry coupled to the portable computer system; a line interface section for reducing a line voltage across a telephone line to a low voltage analog signal level; and a line switch provided between an output of the line interface section and an input of the modem circuitry, and an expansion port the line switch selecting one of the telephone lines leading from the output of the line interface and the expansion port to the line input of the modem circuitry in response to a control signal produced when the portable computer is coupled to a docking station. The line interface includes a transformer with its primary coil connected to the telephone line and of its secondary coil connected to selected terminals of the line switch.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: June 12, 2001
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Seong-Kee Shin
  • Patent number: 6225560
    Abstract: An advanced microelectronic component package incorporating a specially shaped base element which holds and electrically separates the individual conductors associated with the microelectronic component(s) so that the individual conductors may be bonded to external package leads and other conductors within the package. In a first embodiment, jacketed, insulated wire is used as one winding of a toroidal transformer, while unjacketed insulated wire is used as another winding. The jacketing is stripped from the first winding and the exposed conductors are routed into channels along the sides of the base element. The unjacketed conductors are also routed into the same channels, where both conductors are bonded to the external package leads. Raised elements along the sides of the base provide the required electrical separation between the conductors during both manufacture and operation. A method of manufacturing the improved microelectronic package is also disclosed.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: May 1, 2001
    Assignee: Pulse Engineering, Inc.
    Inventor: Russell Lee Machado
  • Patent number: 6201350
    Abstract: In a discharge lamp lighting apparatus for a discharge lamp, each circuit component including a starter transformer is assembled to a bus bar casing, and a high voltage terminal of the starter transformer is connected to one end of a connecting terminal. The bus bar casing is adhesive-cemented to a metal base to which a HIC is attached. Then, a sealing resin fills the bus bar casing to seal the starter transformer and the HIC with the sealing resin. After the sealing resin solidifies, the other end of the connecting terminal and an output cable are connected, and subsequently a resin cover is assembled to the metal base. A shielding sheath covering the output cable is fixed to the bus bar casing by a clip. A ground connection part of the bus bar connectable to the ground side of an electric power source is shaped to protrude from the bus bar casing. The cover, the clip, the ground connection part and the base are ground-connected by a thread.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: March 13, 2001
    Assignee: Denso Corporation
    Inventors: Hiroaki Okuchi, Hiromi Hiramatsu, Yasutoshi Horii, Noboru Yamamoto
  • Patent number: 6115236
    Abstract: The HT power supply unit modular support according to the invention comprises functional housings intended to accommodate the functional elements of the power supply unit, the insulating walls of which are formed by two protruding walls (2, 3) having overlapping complementary inclined surfaces (5, 6). Application to HT power supply units for X-ray sources.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: September 5, 2000
    Assignee: GE Medical Systems S.A.
    Inventors: Hans Jedlitschka, Denis Perillat, Jacques Sireul
  • Patent number: 5959407
    Abstract: A socket portion is provided to project from one side surface of a transformer receiving portion to thereby form a body case, and a lighting transformer is received in the transformer receiving portion so that a high voltage side output end of a secondary coil of the lighting transformer is electrically connected to a terminal provided in the socket portion and a primary coil of the lighting transformer is connected to an external electric path directly or through a circuit portion. Accordingly, the transformer receiving portion and the socket portion are integrally formed with each other to thereby form a unit structure.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: September 28, 1999
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Toshiharu Ito, Takafumi Oshima, Yoshihiko Komura, Minoru Yasuda, Noriyasu Sugimoto, Toshinori Iida
  • Patent number: 5923526
    Abstract: An arrangement for attaching electrical inductive components to a terminal block of a mounting base utilizes interlocking male and female plug-in connections. In instances where the electrical inductive components are measuring transformers, the arrangement accommodates higher electric currents in the area of several amperes seen in the primary winding because a galvanic connection is established simultaneously when the mechanical connection is made. Accordingly, the wiring of the primary circuit is made rapidly and without the possibility of faulty coupling. As the number of electrical inductive components increases, the arrangement disclosed provides compact construction.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: July 13, 1999
    Assignee: ABB Transmit Oy
    Inventor: Simo Kangas
  • Patent number: 5847939
    Abstract: A center bolt LBOR switch 12 comprising a support ring 12-4 and a center bolt or threaded boss 12-2, and a nut 12-3 for securing the switch 12 to a transformer tank wall is disclosed. The disclosed invention allows a switch or other device to be mounted to the wall of a transformer tank without welding and without distorting the tank wall.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: December 8, 1998
    Assignee: ABB Power T&D Company Inc.
    Inventor: John F. Cotton
  • Patent number: 5847933
    Abstract: A high voltage focus potentiometer module includes a housing having a plurality of connection cavities and corresponding wire guides formed therein. A substrate is secured within the housing. The substrate includes the stationary elements of the potentiometer, the wiper of which is located in a recess that is surrounded by a flexible seal. Conductive rubber inserts are loosely fitted in the cavities and are adapted to be piercingly engaged by wires in the wire guides and in contact with corresponding conductive pads on the substrate. Channels are provided in the housing to permit flowable epoxy to surround the conductive rubber inserts and wires in the cavities. A high voltage transformer includes a shell having an open side to which the potentiometer module is snap-fitted. A conductive element on the transformer is positioned in the open side and is adapted to be piercingly engaged by a conductive rubber plug that also engages a conductive pad on the other side of the substrate.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: December 8, 1998
    Assignee: Zenith Electronics Corporation
    Inventors: Arthur J. Lostumo, Steven J. Pulchinski
  • Patent number: 5815378
    Abstract: A flyback transformer has a high-voltage bobbin. The bobbin is provided with a focus-pack connection terminal in addition to electronic-component mounting terminals. The focus-pack connection terminal is connected to one of the electronic-component mounting terminals which provides the desired high voltage. When the desired voltage changes, the focus-pack connection terminal is simply connected to another one of the electronic-component mounting terminals corresponding to the changed voltage, easily changing the focus-pack supply voltage.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: September 29, 1998
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Tadao Nagai
  • Patent number: 5805431
    Abstract: A surface mount package particularly suitable for transformers and other components having numerous windings of fragile, difficult to handle wire has a housing which includes openings along the lower edge, the housing being plated with an electrically conductive material on portions of the lower edge and in areas surrounding the opening. A component is held within the housing, and the leads of the component are disposed in the openings at a point above the lower edge of the housing, and the leads are electrically connected to the plating surrounding the openings and the plating at the flat portions of the lower edge. The plating on the flat portions of the lower edge can be at any suitable location, i.e., remote from or adjacent to the openings. Additional components can be stacked on the exterior of the housing, as connected to the plating surrounding the openings.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: September 8, 1998
    Assignee: Synergy Microwave Corporation
    Inventors: Shankar R. Joshi, Meta Rohde
  • Patent number: 5789828
    Abstract: A low voltage power supply and distribution center comprises a housing and a housing door. The housing door is removably mounted to the housing and may be repositioned between a service position and a closed position. In the service or open position, the housing door is hingely mounted to the housing and provides easy access to circuit components. All of the circuit components of the low voltage power supply and distribution center are directly mounted to the housing door, and access to many of the circuit components, such as switches, fuses and circuit breakers, may be provided directly through the housing door. The housing door is manufactured of a material that efficiently dissipates heat through radiation such that it acts as a heat sink for the circuit components mounted thereon. Vents having adjustable dampers are formed in the housing door and the position of the dampers may be adjusted to meet code requirements associated with a specific installation.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: August 4, 1998
    Inventors: Susan C. Tremaine, John M. Tremaine