Patents Issued in December 30, 2010
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Publication number: 20100327966Abstract: To include a plurality of circuit blocks each including a plurality of nonvolatile memory elements arranged in the X direction, a plurality of comparing circuits that are respectively allocated to the nonvolatile memory elements, and a determining circuit that is commonly allocated to the comparing circuits. The nonvolatile memory elements included in a predetermined circuit block among the circuit blocks are arranged in a first area. The comparing circuits and the determining circuit included in the predetermined circuit block are arranged side by side in the X direction in a second area that is located in the Y direction with respect to the first area. With this arrangement, because the circuit block becomes a shaped block, even when a plurality of circuit blocks are repeatedly arranged, it is possible to realize a further reduction of the chip area.Type: ApplicationFiled: June 22, 2010Publication date: December 30, 2010Applicant: ELPIDA MEMORY, INC.Inventors: Takashi ISHIHARA, Minoru YAMAGAMI, Hisayuki NAGAMINE
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Publication number: 20100327967Abstract: Provided is a test apparatus for testing a device under test that outputs, as an output signal, an amplitude-phase modulated signal having a level and a transition point phase selected from among a plurality of levels and a plurality of phases according to transmission data, the test apparatus comprising a comparing section that compares the output signal to a first comparison level, which is less than the expected level, before the expected phase, and compares the output signal to a second comparison level, which is greater than the expected level, and to a third comparison level, which is less than the expected level, after the expected phase; and a judging section that judges that the output signal matches the expected values on a condition that (i) the output signal is less than or equal to the first comparison level before the expected phase and (ii) the output signal is less than or equal to the second comparison level and greater than or equal to the third comparison level after the expected phase.Type: ApplicationFiled: June 21, 2010Publication date: December 30, 2010Applicant: ADVANTEST CORPORATIONInventors: Kazuhiro YAMAMOTO, Toshiyuki OKAYASU
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Publication number: 20100327968Abstract: Method and system for optimising operating temperature in a power amplifier of a base station of a cellular telecommunications network. The system comprises: a power amplifier of a BTS the power amplifier configured for: measuring its operating temperature; if the operating temperature exceeds a temperature threshold TTH, sending an alarm message to a controller unit; the controller unit, which can be included in the BTS or in the corresponding BSC or RNC, configured for analyzing the alarm messages received and, when determined conditions are met, executing at least one action from a list of actions to reduce the dissipated power of the power amplifier.Type: ApplicationFiled: June 30, 2010Publication date: December 30, 2010Applicant: VODAFONE GROUP PLCInventors: Inigo Güemes Cabrejas, Miguel Arranz Arauzo, Alberto Gómez Coloma
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Publication number: 20100327969Abstract: An amplification device includes a series combination of a driver stage, an output terminal matching network, and a secondary amplification stage. The driver stage includes a driver amplifier and an output matching network. The secondary amplification stage includes a parallel combination of an impedance transformation network and a main amplification stage. The main amplification stage includes a plurality of main amplification branches in parallel with each other, and an input matching network in series with the parallel combination. Each main amplification branch includes a main amplifier, and input and output impedance matching networks. A control circuit supplies activation signals to the main amplification branches to selectively turn them on and off. The device has no switches in the path of the signal that is amplified. In at least one operating mode, the control circuit turns on at least two of the main amplification branches at the same time.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Applicant: Avago Technologies Wireless IP (Singapore) Pte. Ltd.Inventors: Joo Min JUNG, Moon Suk JEON, Sang Hwa JUNG, Jung Hyun KIM
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Publication number: 20100327970Abstract: In one embodiment, an integrated circuit antenna array includes: a substrate, a plurality of antennas adjacent the substrate; and an RF network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrate, wherein the RF feed network and the distributed plurality of amplifiers are configured to form a resonant network such that if a timing signal is injected into an input port of the RF network, the resonant network oscillates to provide a globally synchronized RF signal to each of the antennas.Type: ApplicationFiled: September 3, 2010Publication date: December 30, 2010Inventor: Farrokh Mohamadi
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Publication number: 20100327971Abstract: A transmission device includes an amplifier that amplifies a transmission signal according to a voltage to be applied, an envelope detector that detects an envelope signal of the transmission signal, a rate decreasing unit that decreases changing rate of the envelope signal detected by the envelope detector, and a voltage controller that changes the voltage applied to the amplifier according to the envelope signal whose changing rate is decreased by the rate decreasing unit.Type: ApplicationFiled: June 21, 2010Publication date: December 30, 2010Applicant: FUJITSU LIMITEDInventor: Kazuhiko Kumagai
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Publication number: 20100327972Abstract: A system, method and apparatus is provided for pulse width correction in a power driver. In an embodiment, an apparatus includes an operational amplifier having an input and an output. The input of the operational amplifier is coupled to receive an input pulse signal. The apparatus further includes an output stage having an input coupled to the output of the operational amplifier. The output stage also includes a current output configured to couple to a load and to a voltage sense output. The apparatus also includes a comparator having an inverting input coupled to the voltage sense output of the output stage, a non-inverting input configured to couple to an input signal, and an output. Also, the apparatus includes a timing circuit with an input coupled to the output of the comparator and an input coupled to the input signal. The timing circuit also has an output to supply the input pulse signal. The timing circuit measures a delay from a change in the input signal to a change in the output of the comparator.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: William David MacLean, Bruce Carl Larson
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Publication number: 20100327973Abstract: According to one embodiment, an amplifier circuit includes a clock generation circuit, a switching amplifier circuit, and a smoothing circuit. The clock generation circuit generates a pseudo random period pattern signal whose period varies. The switching amplifier circuit samples an input signal based on the pseudo random period pattern signal used as a sampling clock. The smoothing circuit smoothes an output signal of the switching amplifier circuit.Type: ApplicationFiled: June 21, 2010Publication date: December 30, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Shuichi Takada
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Publication number: 20100327974Abstract: An operational amplifier is provided. The operational amplifier includes a first transistor configured to receive a first input voltage, a second transistor configured to receive a second input voltage, and a current steering module coupled to first and second transistors and configured to receive a reference voltage. The first and second transistors form a differential pair. The first transistor, second transistor, and current steering module are configured such that a current is steered from the current steering module or to the current steering module based on common-mode voltages of the first and second input voltages and the reference voltage to set a common-mode output voltage of the operational amplifier.Type: ApplicationFiled: July 17, 2009Publication date: December 30, 2010Applicant: Broadcom CorporationInventors: Ahmad Yazdi, Ahmad Mirzaei, Hooman Darabi
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Publication number: 20100327975Abstract: A signal amplifier controls an output amplitude of a differential transmitted from an amplifier circuit to two output terminals via each of 2N number of MOS transistors that operate as a switch by switching a control value n, and includes an amplitude-control-word switching unit that multiplies the control value n by a value 1 or a value ?1 and switches between an amplitude control word of a value (N+n) and an amplitude control word of a value (N?n) of a complementary 2N-bit amplitude control word.Type: ApplicationFiled: April 29, 2010Publication date: December 30, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Hiroyuki Kobayashi
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Publication number: 20100327976Abstract: A compact integrated power amplifier is described herein. In an exemplary design, an apparatus includes (i) an integrated circuit (IC) die having at least one transistor for a power amplifier and (ii) an IC package having a load inductor for the power amplifier. The IC die is mounted on the IC package with the transistor(s) located over the load inductor. In an exemplary design, the IC die includes a transistor manifold that is placed over the load inductor on the IC package. The transistor(s) are fabricated in the transistor manifold, have a drain connection in the center of the transistor manifold, and have source connections on two sides of the transistor manifold. The IC die and the IC package may include one or more additional power amplifiers. The transistor(s) for each power amplifier may be located over the load inductor for that power amplifier.Type: ApplicationFiled: February 12, 2010Publication date: December 30, 2010Applicant: QUALCOMM INCORPORATEDInventors: Guy Klemens, Thomas A. Myers, Norman L. Frederick, JR., Yu Zhao, Babak Nejati, Nathan M. Pletcher, Aristoteie Hadjichristos
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Publication number: 20100327977Abstract: An exemplary apparatus is disclosed that comprises a plurality of voltage to current transducers to convert an input signal voltage into a plurality of input signal currents and a cascode stage. The cascode stage is coupled to the voltage to current transducers to provide amplifier gain control. The cascode stage comprises a thin gate oxide transistor and a thick gate oxide transistor.Type: ApplicationFiled: December 11, 2009Publication date: December 30, 2010Applicant: QUALCOMM INCORPORATEDInventor: Devavrata V. Godbole
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Publication number: 20100327978Abstract: A Darlington pair amplifier includes a temperature compensation device. In one case, the device is a resistor connected in series between: (a) an intermediate node of two bias resistors for the Darlington pair, and (b) the control terminal of the Darlington pair. In another case, the device is a second, smaller, Darlington pair connected in series with the two bias resistors for the first Darlington pair. In still another case, the device is a combination of: (1) a resistor connected in series between: (a) an intermediate node of the two bias resistors for the Darlington pair, and (b) the control terminal of the Darlington pair; and (2) a second, smaller, Darlington pair connected in series with the two bias resistors for the first Darlington pair.Type: ApplicationFiled: June 29, 2009Publication date: December 30, 2010Applicant: Avago Technologies Wireless IP (Singapore) Pte. Ltd.Inventor: Wei Yi THOR
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Publication number: 20100327979Abstract: A highly accurate current detection apparatus is realized in a one-chip LSI. An end of a current detector is connected to an analog power supply (VACC) or a virtual analog ground potential (VAG) of a voltage amplifier and an A/D converter, and a predetermined voltage is supplied between the voltage amplifier and the virtual ground potential (VAG) by a power supply.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicant: Hitachi Automotive Systems, Ltd.Inventors: Nobuyasu KANEKAWA, Teppei Hirotsu, Takayuki Hashimoto, Itaru Tanabe
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Publication number: 20100327980Abstract: A heterojunction bipolar transistor with InGaP as the emitter layer and capable of both reliable electrical conduction and thermal stability wherein a GaAs layer is inserted between the InGaP emitter layer and AlGaAs ballast resistance layer, to prevent holes reverse-injected from the base layer from diffusing and reaching the AlGaAs ballast resistance layer.Type: ApplicationFiled: September 10, 2010Publication date: December 30, 2010Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Isao OHBU, Chushiro KUSANO, Yasunari UMEMOTO, Atsushi KUROKAWA
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Publication number: 20100327981Abstract: A delta-sigma fractional-N frequency synthesizer having a charge pump with error canceling circuitry eliminates a non-linear term from the charge pump transfer function. The charge pump includes a matched pair of charging current sources, each supplying a first current IP1 to a common node, when enabled. The charge pump also includes a matched pair of discharging current sources, each sinking a second current IN1 from the common node, when enabled. The error canceling circuitry includes a charging current source, which supplies a current equal to the second current IN1 to the common node, when enabled. The error canceling circuitry also includes a discharging current source, which sinks a current equal to the first current IP1 from the common node, when enabled. The charging and discharging current sources of the error canceling circuitry are both enabled when either one of the matched pairs of charging and discharging current sources is enabled.Type: ApplicationFiled: June 29, 2009Publication date: December 30, 2010Applicant: INTEGRATED DEVICE TECHNOLOGY, INC.Inventors: Zhenyu Yang, Tianwei Liu
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Publication number: 20100327982Abstract: The described embodiments provide a configurable pulse generator circuit. More specifically, the described embodiments include a pulse generator circuit; an inverting difference oscillator (IDO) enabling circuit coupled to the pulse generator circuit; and a disable signal coupled to the IDO enabling circuit. When the disable signal is asserted, the IDO enabling circuit is disabled and the pulse generator circuit is configured as a pulse generator. In contrast, when the disable signal is deasserted, the IDO enabling circuit is enabled and the pulse generator circuit is configured as part of an IDO.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Applicant: SUN MICROSYSTEMS, INC.Inventors: Anand Dixit, Robert P. Masleid
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Publication number: 20100327983Abstract: Multiple multi-stage delay circuits each have n (n is an integer) output terminals. The multi-stage delay circuits each apply delay times to a corresponding input signal, and output, via n output terminals, n delayed signals to which different delay times have been applied. Multiple inverters invert the respective input signals. The multiple multi-stage delay circuits and multiple inverters are alternately connected in the form of a ring.Type: ApplicationFiled: January 30, 2009Publication date: December 30, 2010Applicant: ADVANTEST CORPORATIONInventor: Kazuhiro Yamamoto
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Publication number: 20100327984Abstract: Phase locked loop circuits are provided, in which a phase locked loop module includes a voltage controlled oscillator to generate an oscillation signal with an output frequency according to a control voltage, and a gain calibration module triggers the phase locked loop module to induce a frequency variation characterized by a delta function in the output frequency and calculates a gain of the voltage controlled oscillator according to a phase error caused by the frequency variation in the output frequency.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Applicant: MEDIATEK INC.Inventor: Ping-Ying Wang
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Publication number: 20100327985Abstract: An oscillator circuit comprises a charging block (200) with a first terminal (201) for feeding a first charging current (IREF1), to which terminal a first capacitor (C1) and a series circuit of a first and a second switch (MN1, MN2) are connected, and with a second terminal (202) for feeding a second charging current (IREF2), to which terminal a second capacitor (C2) and a series circuit of a third and a fourth switch (MN3, MN4) are connected, as well as a comparison circuit (160) with a first and a second comparator (161, 162). The comparators (161, 162) are configured to compare voltages (VC1, VC2) at the first and second terminals (201, 202) to a reference voltage (VREF_OSC), wherein their output is connected to control terminals of the third or first switch (MN3, MN1).Type: ApplicationFiled: June 30, 2010Publication date: December 30, 2010Applicant: austriamicrosystems AGInventor: Gregor SCHATZBERGER
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Publication number: 20100327986Abstract: A circuit for a voltage controlled oscillator (VCO) buffer is described. The circuit includes a first capacitor connected to an input of the VCO buffer that is connected to a VCO core. The circuit also includes a second capacitor connected to the input of the VCO buffer and the gate of a p-type metal-oxide-semiconductor field effect (PMOS) transistor. The circuit further includes a first switch connected to the first capacitor and the gate of the PMOS transistor. The circuit also includes a third capacitor connected to the input of the VCO buffer. The circuit further includes a fourth capacitor connected to the input of the VCO buffer and the gate of an n-type metal-oxide-semiconductor field effect (NMOS) transistor. The circuit also includes a second switch connected to the third capacitor and the gate of the NMOS transistor.Type: ApplicationFiled: June 28, 2010Publication date: December 30, 2010Applicant: QUALCOMM INCORPORATEDInventors: Chinmaya Mishra, Rajagopalan Rangarajan, Hongyan Yan
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Publication number: 20100327987Abstract: The present invention relates to a crystal element manufacturing method for manufacturing a plurality of crystal elements at a wafer level, and to a crystal resonator manufactured by this method. The method is comprised when the frequencies of the crystal elements are adjusted by adjusting the thickness of a crystal wafer that constitutes the crystal element in two stages by partial wet etching, the thicknesses of a large number of the step sections are coarse-adjusted in a first stage by collectively subjecting the step sections to partial wet etching, and then variations in the thicknesses of each group of a small number of the step sections are fine-adjusted in a second stage by collectively subjecting the step sections to partial wet etching.Type: ApplicationFiled: June 18, 2010Publication date: December 30, 2010Applicant: NIHON DEMPA KOGYO CO., LTD.Inventor: Takehiro Takahashi
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Publication number: 20100327988Abstract: Signal modulation apparatus for applying a modulation signal to a carrier signal, the apparatus comprising: an amplitude modulator for modulating the amplitude of the carrier signal in accordance with a control signal; first mixing means for mixing together fractions of the carrier signal before and after action of the amplitude modulator to produce a first detection signal indicative of the amplitude modulation applied by the amplitude modulator; and detection means for comparing the control signal with a first detection signal to evaluate distortion in the first detection signal as compared with the control signal.Type: ApplicationFiled: February 26, 2009Publication date: December 30, 2010Applicant: CAMBRIDGE SILICON RADIO LIMITEDInventor: Per-Olof Brandt
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Publication number: 20100327989Abstract: A micro-strip transmission line may include a plurality of conductors, wherein each conductor has a compensating portion and a remaining portion. The compensating portion can compensate for far-end crosstalk in the remaining portion. In one example, the compensating portion has a longitudinal section and a plurality of alternating stubs extending from lateral surfaces of the longitudinal section.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Inventors: John J. Abbott, Richard K. Kunze
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Publication number: 20100327990Abstract: An apparatus for removing a leakage signal includes a coupler including a transmission port through which a transmission signal is input, an antenna port through which the transmission signal is output to an antenna and a receiving signal is input from the antenna, and a receiving port through which the receiving signal is output; and a removing unit which outputs, to the receiving port, a leakage removing signal having a same magnitude as one of or a sum of a magnitude of a first leakage signal of the transmission signal, which is generated at the transmission port and input to the receiving port, and a magnitude of a second leakage signal of the transmission signal which is input to the receiving port through the antenna port, the leakage removing signal having an opposite phase to one of the phases or an aggregate phase of the first and second leakage signals.Type: ApplicationFiled: June 30, 2010Publication date: December 30, 2010Applicants: SAMSUNG TECHWIN CO., LTD., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Young-goo YANG, Min-su KIM, Sung-chan JUNG
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Publication number: 20100327991Abstract: A computer system includes a north bridge chip, a power source, and a resistor-capacitor filter circuit coupled between the power source and the north bridge chip. The north bridge chip has a digital-to-analog converter analog power pin and a digital-to-analog converter analog ground pin. The power source is coupled to the digital-to-analog converter analog power pin of the north bridge chip. The resistor-capacitor filter includes a first resistor and a first capacitor. The first resistor is connected between the power source and the digital-to-analog converter analog power pin of the north bridge chip. One end of the first capacitor is connected to the digital-to-analog converter analog power pin of the north bridge chip, and another end of the first capacitor is connected to ground together with the digital-to-analog converter analog ground pin of the north bridge chip.Type: ApplicationFiled: October 14, 2009Publication date: December 30, 2010Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventor: KE-YOU HU
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Publication number: 20100327992Abstract: A MEMS resonator is provided a main movable beam, at least one sub movable beam, and at least one exciting electrode. The main movable beam is electrically insulated from a substrate and fixed to at least one fixed end, the sub movable beam is formed to extend from the main movable beam. The exciting electrode is provided to be close to the sub movable beam. The sub movable beam is excited by an electrostatic force to oscillate by exciting the exciting electrode using an alternating-current signal, such that the MEMS resonator resonates with at least one of a fundamental resonant frequency and harmonic frequencies thereof. The resonant frequency is changed by changing at least one of number of the at least one exciting electrode and a position of the exciting electrode relative to the sub movable beam.Type: ApplicationFiled: November 5, 2008Publication date: December 30, 2010Inventor: Kenichiro SUZUKI
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Publication number: 20100327993Abstract: A micro mechanical resonator includes a high dielectric substrate, and a torsional vibrator having one end that is a fixed end fixed to high dielectric substrate, and having the other end that is a free end. The torsional vibrator has a substantially circular plate-like shape, has a lower surface serving as the fixed end fixed to the substrate, and has an upper surface serving as the free end that is not fixed. The torsional vibrator torsionally vibrates relative to an axis (torsional vibration axis) connecting the center of the circle of the end surface of the fixed end to the center of the circle of the end surface of the free end. In this way, a micro mechanical resonator can be implemented which can be manufactured readily and achieves a high Q factor.Type: ApplicationFiled: February 16, 2009Publication date: December 30, 2010Applicants: SANYO ELECTRIC CO., LTD., THE RITSUMEIKAN TRUSTInventors: Akimasa Tamano, Mitsuhiro Okada, Kenichiro Suzuki
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Publication number: 20100327994Abstract: An acoustic resonator comprises a first electrode and second electrode comprising a plurality of sides. At least one of the sides of the second electrode comprises a cantilevered portion. A piezoelectric layer is disposed between the first and second electrodes. An electrical filter comprises an acoustic resonator.Type: ApplicationFiled: November 25, 2009Publication date: December 30, 2010Inventors: John Choy, Chris Feng, Phil Nikkel
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Publication number: 20100327995Abstract: A guided acoustic wave resonant device is provided. The device comprises at least two filters (F1, . . . , Fi, . . . , FN), each filter comprising at least two acoustic wave resonators (R11- R12, . . . , Ri1-Ri2, . . . , RN1-RN2), each filter having a useful frequency band (BF1, . . . , BFi, . . . , BFN) centred on a central frequency (f1, . . . , fi, . . . , fN), each resonator comprising at least one suite of inter-digitated upper electrodes exhibiting a periodic structure of period (?ij) and a layer of piezoelectric material, each resonator having a coupling coefficient (k21, k22, . . . , k2n) and a resonant frequency (fr1, . . . , fr2, . . .Type: ApplicationFiled: June 30, 2010Publication date: December 30, 2010Applicants: Commissariat a L'Energie Atomique at aux Energies Alternatives, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, STMICROELECTRONICS SAInventors: Alexandre Reinhardt, Issiaka Kone
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Publication number: 20100327996Abstract: A resonator arrangement has a conductive, semi-open outer housing, at an interior of which a conductive bar is provided disposed coaxially to the housing. At one end of the bar in a direction of a housing bottom, the bar has a die and, together with a dielectric and the housing bottom, forms a capacitor. The bar is short-circuited to the housing at another end, so that the bar and housing together form an LC oscillator circuit. Also disclosed is a method for analyzing a sample using a resonator arrangement.Type: ApplicationFiled: March 1, 2010Publication date: December 30, 2010Applicant: Forschungszentrum Juelich GmbHInventors: Norbert Klein, Svetlana Vitusevich, Serhiy Danylyuk
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Publication number: 20100327997Abstract: A high-frequency coupler includes ground; a coupling electrode being supported so that the coupling electrode is placed opposite the ground and separately placed at a height from the ground, the height being negligible relative to the wavelength of the high-frequency signal; a resonator increasing electric current entering the coupling electrode through a transmission path; and a stretchable/retractable connection section connecting a predetermined position on the coupling electrode and the resonator; wherein an infinitesimal dipole is formed, the infinitesimal dipole including a line segment which connects the center of electric charge accumulated in the coupling electrode and the center of mirror-electric charge accumulated in the ground, and the high-frequency signal is transmitted to another high-frequency coupler at a communication partner side, which is placed opposite the high-frequency coupler so that the angle between the direction of the infinitesimal dipole and the direction from the high-frequencyType: ApplicationFiled: May 12, 2010Publication date: December 30, 2010Applicant: Sony CorporationInventor: Takanori WASHIRO
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Publication number: 20100327998Abstract: Techniques are disclosed that allow for programmable attenuation using thermometer code steps. By thermometer coding the attenuator structure, monotonicity is guaranteed or otherwise greatly improved, which eliminates instability problems with automatic gain control loops and without the need for compensation or trimming. In addition, the thermometer coding technique also greatly reduces phase discontinuity between adjacent gain states.Type: ApplicationFiled: June 26, 2009Publication date: December 30, 2010Applicant: BAE SYSTEMS Information and Electronic Systems Intergration Inc.Inventors: Douglas S. Jansen, Gregory M. Flewelling
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Publication number: 20100327999Abstract: Switch-controlled security assemblies (20, 76) are provided which are especially designed for use with cargo enclosures (40), in order to detect any unauthorized opening of the cargo doors (38). The assemblies (20, 76) include one or more switch assemblies (26, 28) each having a switch member (44) and an associated shiftable component (46). In preferred forms, the switch member (44) includes a pair of switch elements (50, 52) and a body (54) movable between a first position in simultaneous electrical contact with the elements (50, 52), and a second position out of such simultaneous contact. The body (54) and components (46) are magnetically coupled such that movement of the component (46) during unauthorized opening of door (38) effects corresponding movement of the body (54), in turn actuating an alarm controller (30).Type: ApplicationFiled: September 7, 2010Publication date: December 30, 2010Applicant: MAGNASPHERE CORPORATIONInventor: Randall Woods
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Publication number: 20100328000Abstract: A magnetohydrodynamic simulator that includes a plasma container. The magnetohydrodynamic simulator also includes an first ionizable gas substantially contained within the plasma container. In addition, the magnetohydrodynamic simulator also includes a first loop positioned adjacent to the plasma container, wherein the first loop includes a gap, a first electrical connection on a first side of the gap, a second electrical connection of a second side of the gap, and a first material having at least one of low magnetic susceptibility and high conductivity. The first loop can be made up from an assembly of one or a plethora or wire loop coils. In such cases, electrical connection is made through the ends of the coil wires. The magnetohydrodynamic simulator further includes an electrically conductive first coil wound about the plasma container and through the first loop.Type: ApplicationFiled: July 15, 2010Publication date: December 30, 2010Inventor: Nassim Haramein
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Publication number: 20100328001Abstract: A mechanical linkage exerts a mechanical force on a permanent magnet to substantially counterbalance the magnetic force attracting the permanent magnet to a ferrous target surface.Type: ApplicationFiled: June 9, 2010Publication date: December 30, 2010Inventor: Daniel I. Harjes
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Publication number: 20100328002Abstract: An compact dry transformer (1A) comprising a magnetic material core (2) and a coil assembly (3) assembled onto the core. The core comprises heat dissipating covers (4) with cooling fins (5) snug fitted over the core. The coil assembly is mounted on the core over a heat dissipating shifted inner jacket (9) made of non-magnetic material in close contact with the inner jacket. At least one first heat pipe (11) provided with cooling fins is located between the core and inner jacket in close contact therewith. The coil assembly further comprises a heat dissipating shifted outer jacket (13) made of non-magnetic material snug fitted over the high voltage winding. At least one second heat pipe (15) protruding out of bushings provided with cooling fins is located against the outer jacket in close contact therewith.Type: ApplicationFiled: February 22, 2008Publication date: December 30, 2010Inventors: Arun Dattatraya Yargole, Baburao Keshwatkar, Ramdas Shridhar Kirjat
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Publication number: 20100328003Abstract: A coil device includes first and second coils and a package for sealing the first and second coil. The first coil has a first winding including a first conductor wire wound about a first winding axis, and first and second ends which are both ends of the first conductor wire. The second coil has a second winding including a second conductor wire wound about a second winding axis, and third and fourth ends which are both ends of the second conductor wire. The second winding axis is arranged with the first winding axis. The second end of the first coil is connected with the third end of the second coil. The first end of the first coil and the fourth end of the second coil are adapted to be connected to an outside of the package. This coil device reduces magnetic flux leakage to outside of the package.Type: ApplicationFiled: November 17, 2008Publication date: December 30, 2010Applicant: PANASONIC CORPORATIONInventors: Tomonori Shibuya, Tsunetsugu Imanishi
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Publication number: 20100328004Abstract: The present invention discloses an electromagnetic coil device including a coil body having a connection terminal portion projecting from a circumferential surface of the coil body, a buckle having a positioning flat plate portion and an inserting flat plate portion fixedly connected to the positioning flat plate portion. The inserting flat plate portion is pottedly connected to the connection terminal portion with potting material. The electromagnetic coil device can, on the one hand, reduce the manufacturing cost and improve the reliability of the connection between the coil body and the buckle, and on the other hand, prevent the coil body from being damaged by welding and thus improve the life thereof.Type: ApplicationFiled: June 17, 2010Publication date: December 30, 2010Applicant: Zhejiang Sanhua Co., Ltd.Inventor: Xianrang Wei
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Publication number: 20100328005Abstract: A distribution transformer having a coil assembly mounted to a ferromagnetic core. The coil assembly includes a resin-encapsulated low voltage coil mounted to the core, a resin-encapsulated first high voltage coil disposed around the low voltage coil, and a resin encapsulated second high voltage coil disposed around the first high voltage coil. The first high voltage coil is separated from the low voltage coil by an annular first space, and the second high voltage coil is separated from the first high voltage coil by an annular second space. The low voltage coil and the first and second high voltage coils are arranged concentrically. The low voltage coil and the first and second high voltage coils have different axial lengths.Type: ApplicationFiled: June 23, 2010Publication date: December 30, 2010Applicant: ABB TECHNOLOGY AGInventors: Charlie Sarver, William E. Pauley, JR.
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Publication number: 20100328006Abstract: This invention relates to a power transfer device via electromagnetic interaction. this invention proposes a power transfer device, comprising: a primary coil for transferring a power, including a first primary coil and a second primary coil; a secondary coil for transferring the power with the primary coil via electromagnetic interaction; wherein the secondary coil is positioned between the first primary coil and the second primary coil, the first and the second primary coil being configured to render the directions of the magnet fields they induce across the secondary coil consistent. With the specific association and positioning of the primary coil and the secondary coil, the power can be transferred between the primary coil and the secondary coil effectively; therefore, the size of the transfer device can be reduced significantly. This invention can be used for charging device, e.g. components of lighting products, electrical charging device, etc.Type: ApplicationFiled: December 26, 2008Publication date: December 30, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Etienne Nicolaas Kathalijntje Paulus Marie Eberson
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Publication number: 20100328007Abstract: An inductor may include an electrical conductor for generating a magnetic field; and at least one inductor core unit which is arranged in the region of the conductor and includes an inductor core composed of a magnetizable material and also at least one air gap, a filling material being introduced at least into part of the air gap for the purpose of mechanical stabilization, wherein the filling material is configured in such a way that it has a coefficient of thermal expansion, the value of which lies in a range of ±70% of the value of the coefficient of thermal expansion of the magnetizable material of which the inductor core is composed.Type: ApplicationFiled: November 24, 2008Publication date: December 30, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Friedrich Witzani, Andreas Huber
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Publication number: 20100328008Abstract: A disc winding of a power transformer or a choke is provided. The disc winding includes a plurality of parallel single strand conductors. The working time for bending the strand conductors of cross-overs is reduced by sharing the winding axially in plurality of sections, and the cross-overs within a section are identical twin cross-overs. The the strand conductors are bent in two groups, and a standardized twin transposition cross-over is provided between the sections such that the strand conductors are being bent in two groups. The outermost strand conductor is in the first group, and the remaining strand conductors are in the other group.Type: ApplicationFiled: September 2, 2010Publication date: December 30, 2010Applicant: ABB Technology AGInventor: Timo TUOMISTO
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Publication number: 20100328009Abstract: An electronic component includes overlapping coils in a rectangular laminate to form a substantially annular orbit. The orbit passes about an intersection of diagonal lines of an insulator layer of the laminate and is divided into a first orbit portion and a second orbit portion by a straight line parallel to a short side of the insulator layer. When an orbit obtained by the axisymmetric movement of the first orbit portion relative to the straight line is defined as a third orbit portion, a part of the second orbit portion overlaps with a part of the third orbit portion, and the non overlapped portion of the second orbit portion is positioned closer to the intersection than the non overlapped portion of the third orbit portion. A via hole conductor is provided in a region outboard an outer side of the non overlapping portion of the second orbit portion and inboard an outer side of the non overlapping portion of the third orbit portion.Type: ApplicationFiled: June 9, 2010Publication date: December 30, 2010Applicant: MURATA MANUFACTURING CO., LTD.Inventor: Katsunori TAWA
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Publication number: 20100328010Abstract: Lower surface terminals are disposed at the lower surface of a magnetic substrate. An upper surface electrode is disposed at the upper surface of the magnetic substrate. A control circuit, an input capacitor, and an output capacitor are mounted on the upper surface electrode. The control circuit contains a switching element. A smoothing choke is disposed inside the magnetic substrate. The connection wiring of connecting the upper surface electrode and at least one of the input terminal, the output terminal, and the ground terminal is constructed using an inner conductor passing through the inside of the magnetic substrate, and the connection wiring forms an inductor.Type: ApplicationFiled: July 29, 2010Publication date: December 30, 2010Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Takashi Noma, Nobuo Ikemoto, Yoshihiko Nishizawa
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Publication number: 20100328011Abstract: A mode-switching transformer comprising a first line in common mode and a second line in differential mode, each line comprising two sections in series respectively coupled with one of the two sections of the other line and all sections having the same lengths, the common mode line being connected in series with a capacitor, to lower the central frequency of the transformer passband, the ?/4 lengths of the sections being chosen to correspond to a central frequency greater than the central frequency desired for the transformer.Type: ApplicationFiled: September 2, 2010Publication date: December 30, 2010Applicant: STMicroelectronics, SAInventor: Hilal Ezzeddine
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Publication number: 20100328012Abstract: A transformer includes a flex or printed circuit board consisting of a substrate material having a desired permitivity, and at least one primary winding and at least one secondary winding. Each winding is integrated with the flex or printed circuit board such that one or more respective transformer parasitic elements and the substrate permitivity between the primary and secondary windings together are tuned to a desired parallel resonant frequency.Type: ApplicationFiled: June 25, 2009Publication date: December 30, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Michael Andrew de Rooij, William Hullinger Huber, William Edward Burdick, JR.
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Publication number: 20100328013Abstract: There is provided a transformer including cores combined with a bobbin wound with coils, and center leg parts extended from the cores and contacting each other by being inserted into both ends of the bobbin, wherein stress dispersion hole, dispersing stress occurring according to temperature variations around the cores, is formed at the edge of center leg connection parts of the cores from which the center leg parts are extended.Type: ApplicationFiled: December 28, 2009Publication date: December 30, 2010Inventors: Hee Soo KIM, Yong Ju OH, Soo Deok Moon, Dong Jin KIM
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Publication number: 20100328014Abstract: An electric circuit breaker apparatus is used in a vehicle including an electric circuit having a converter and a storage battery. The electric circuit breaker apparatus interrupts power supply from the storage battery to the converter when a collision of the vehicle is detected. The electric circuit breaker apparatus includes a power supply circuit breaker driven by a low explosive type actuator, which is actuated when a collision of the vehicle is detected. Actuation of the power supply circuit breaker interrupts a power supply path connecting a positive terminal of the storage battery to the converter and grounds a portion of the power supply path closer to the converter than the interrupted portion.Type: ApplicationFiled: June 23, 2010Publication date: December 30, 2010Applicant: TOYODA GOSEI CO., LTD.Inventors: Shigeyuki Suzuki, Takaki Fukuyama, Toshinori Tanase
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Publication number: 20100328015Abstract: In accordance with an example embodiment of the present invention, an apparatus, comprises an actuator assembly, which comprises an actuator and a coupling mechanism, the coupling mechanism having a curved surface, the actuator having a leading contact point with the curved surface, the actuator having an end coupled with a stationary point, the actuator comprising a shape memory alloy adapted to pull the coupling mechanism in a direction tangential to the leading contact point toward the stationary point when heated.Type: ApplicationFiled: June 26, 2009Publication date: December 30, 2010Applicant: Nokia CorporationInventors: Anssi Ilmari Vanska, Matti Tauno Pekka Kosonen, Jarkko Tapio Rouvinen