By Induction-type Converter Patents (Class 363/170)
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Patent number: 10923922Abstract: Example energy balancing circuits and energy balancing apparatus are described. One example energy balancing circuit includes a coupling branch and a receiving branch. The coupling branch includes one sending coil and at least one receiving coil. Each receiving coil is coupled to the sending coil in an electromagnetic induction manner. The receiving branch includes at least one receiving subbranch. Each receiving coil is uniquely connected to one receiving subbranch. Each receiving subbranch includes a rectifier branch. A first receiving subbranch in the at least one receiving subbranch further includes a first boost branch connected to both a first rectifier branch and a first receiving coil. The first receiving coil is a receiving coil connected to the first receiving subbranch.Type: GrantFiled: June 28, 2019Date of Patent: February 16, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Rui Yang, Chengbin Ma, Xiaokang Liu
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Patent number: 10209321Abstract: Magnetoresistive sensors are commonly used for angular detection in many automotive applications. According to an exemplary embodiment of the present invention, a sensor is provided in which a first half-bridge has magnetoresistive resistors with barber-pole stripes and in which a second half-bridge has magnetoresistive resistors without barber-pole stripes. One of the resistors without barber-pole stripes is rotated with respect to the other three resistors by 90°. This may provide for an improved angle determination with reduced angular errors due to offset.Type: GrantFiled: April 24, 2008Date of Patent: February 19, 2019Assignee: NXP B.V.Inventor: Stefan Butzmann
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Patent number: 9911075Abstract: A RFID transponder includes an active load modulation unit and an energy harvesting unit coupled to the active load modulation unit. The active load modulation unit performs active load modulation on transmitted signals. The energy harvesting unit harvests RF energy from the ambient environment, converts the RF energy to DC energy, stores the DC energy, and supplies the DC energy to the active load modulation unit.Type: GrantFiled: September 1, 2016Date of Patent: March 6, 2018Assignee: NXP B.V.Inventors: Peter Thueringer, Franz Amtmann
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Patent number: 9425644Abstract: An apparatus for charging an electrically chargeable device is provided. The apparatus comprises a core structure. The core structure comprises a first portion common to each of a first magnetic flux circuit in the core structure and a second magnetic flux circuit in the core structure. The core structure comprises a second portion included in the first magnetic flux circuit and not included in the second magnetic flux circuit. The apparatus comprises a first coil wound on or around the first portion and configured to be driven by an alternating voltage. The apparatus comprises a second coil wound on or around the second portion and configured to be electrically coupled to the electrically chargeable device.Type: GrantFiled: June 3, 2015Date of Patent: August 23, 2016Assignee: THOR CHARGER COMPANYInventors: Richard Dellacona, Robert Daniel Arnon
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Patent number: 8493717Abstract: According to one embodiment, a note PC has a disk drive connected to a system board via a connector. A power receive coil is attached to the disk drive. Power produced by the power receive coil as a result of excitation of a power feed coil is fed to a power supply control circuit via an unused pin of the connector.Type: GrantFiled: April 29, 2011Date of Patent: July 23, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Ryo Saito
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Patent number: 8321800Abstract: Methods are provided for creating dynamic lists from selected areas of a power system of a utility company. The utility company has an energy management system with a control panel. The energy management system is used to access one or more source displays of a site. Rubber-banding or lassoing is used to create selected areas from at least a portion of the source displays. Lists are dynamically created. Operator defined information is displayed for each element type in a list of network elements from the selected areas that have been rubber-banded or lassoed.Type: GrantFiled: June 13, 2008Date of Patent: November 27, 2012Assignee: Areva T & D, Inc.Inventors: Gennaro Castelli, Michael Hackett, Michael Quinn Howard, Lawrence Edmund Jones, HuiChu Su Shung, Heath Daniel Brand
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Patent number: 7817453Abstract: A ballast circuit that facilitates providing thermal protection for a fluorescent lamp includes a coupling transformer that couples an inverter circuit to a control circuit. First and second transformer windings in the inverter circuit, and a third transformer winding in the control circuit, are wound around a common ferrite core. The ferrite core has a Curie temperature that approximates a maximum allowable threshold temperature for the lamp. When the temperature of the ballast approaches the Curie temperature of the ferrite core, its permeability, and thus inductance, drops dramatically, causing an increase in operating frequency in the inverter circuit. This increased operating frequency causes a capacitor in the control circuit to charge to a threshold voltage, at which power to the inverter circuit is reduced. The lamp then dims without turning off until the temperature is reduced to an acceptable level.Type: GrantFiled: June 18, 2008Date of Patent: October 19, 2010Assignee: General Electric CompanyInventor: Louis Robert Nerone
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Patent number: 7760527Abstract: The control device of an electric power converter comprises a control circuit controlling turn-on of power semi-conductor arms. The control circuit comprises a module for determining possible turn-offs of an arm, and a module for selecting turn-offs enabling double switching from among the possible turn-offs. Selection of turn-offs enabling an arm of said converter to be turned off according to the turn-offs enabling double switching in other arms. The electric converter comprises one such control device. The method comprises determination of turn-offs enabling double switching from among the possible turn-offs, and selection of turn-offs to turn an arm of said converter off according to the turn-offs enabling double switching.Type: GrantFiled: May 1, 2007Date of Patent: July 20, 2010Assignee: Schneider Electric Industries SASInventors: Philippe Baudesson, Arnaud Videt, Philippe LeMoigne, Nadir Idir
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Publication number: 20080310206Abstract: A method for controlling a frequency converter unit, the frequency converter unit containing an input connection for supplying electric power at an input frequency to the frequency converter unit, and an output connection for supplying electric power at an output frequency from the frequency converter unit, the method comprising a control step, in which the frequency converter unit is controlled by means of control signals. In the control step the control signals are supplied through an inductive connection to at least one wire connected to the input connection or the output connection of the frequency converter unit for transmitting electric power, the control signals being supplied to the frequency converter unit over the at least one wire.Type: ApplicationFiled: June 4, 2008Publication date: December 18, 2008Applicant: ABB OYInventor: Jani Kangas
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Patent number: 7254046Abstract: In a DC to DC converter, first and second primary windings are magnetically coupled to a first secondary winding. Third and fourth primary windings are magnetically coupled to a second secondary winding. The first and second primary windings are magnetically coupled to the first secondary winding. The third and fourth primary windings are magnetically coupled to the second secondary winding. The first and third primary windings are coupled in series to form a first coil member. The second and fourth primary windings are coupled in series to form a second coil member. One end of the first coil member is coupled to the first positive power line. A first switching element is coupled between the first negative power line and the other end of the first coil member. A first capacitor is coupled between the first negative terminal and one end of the second coil member.Type: GrantFiled: July 16, 2004Date of Patent: August 7, 2007Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Koji Kawasaki, Keiji Shigeoka, Tsuyoshi Yamashita
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Patent number: 7236378Abstract: A device for distributing a signal, in particular a clock signal or a command/address signal from a signal source to a plurality of circuit units, includes a transformer. The transformer has a primary winding receiving the signal from the signal source. Further, the transformer includes a plurality of secondary windings, which are arranged to interact with the primary winding to transfer the signal to the circuit units.Type: GrantFiled: November 15, 2002Date of Patent: June 26, 2007Assignee: Infineon Technologies AGInventor: Maksim Kuzmenka
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Patent number: 6741485Abstract: An electrical interconnection system (100) comprises a variable frequency rotary transformer (102) and a control system (104). The control system (104) adjusts an angular position of the rotary transformer (102) so that measured power (P1) transferred from a first electrical system (22) to a second electrical system (24) matches an inputted order power (P0). The rotary transformer (102) comprises a rotor assembly (110) and a stator (112), with the control system (104) adjusting a time integral of rotor speed over time. The control system (104) includes a first control unit (107) and a second control unit (108). The first control unit (107) compares the input order power P0 to the measured power P1 to generate a requested angular velocity signal &ohgr;0.Type: GrantFiled: March 31, 1997Date of Patent: May 25, 2004Assignee: General Electric CompanyInventors: Mark A. Runkle, Einar V. Larsen
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Publication number: 20030021135Abstract: The invention relates to a power supply unit with an inverter which cooperates with a resonant circuit (L, C) and can be controlled so as to adjust the output power by means of a control unit (6).Type: ApplicationFiled: September 18, 2002Publication date: January 30, 2003Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: Bernhard Wagner, Olaf Martens
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Publication number: 20020075712Abstract: A transformer providing low output voltage. A transformer core has two outer leg portions and a center portion. A primary winding has a first portion looped around one of the legs so that a current passed through the first winding will produce a magnetic flux in that leg that circulates in either the right hand or left hand sense. A second portion of the input signal winding is looped around the other leg in the opposite sense. This provides for a magnetic flux circulating through the two outer leg portions in the same sense, and provides that the magnetic flux circulating through the center portion is zero. The secondary winding is preferably provided as a fractional loop around one of the outer legs.Type: ApplicationFiled: December 18, 2000Publication date: June 20, 2002Inventor: Ionel Jitaru
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Patent number: 6356472Abstract: An electrical interconnection system (100) comprises a variable frequency rotary transformer (201) and a control system (104). The control system (104) adjusts an angular position of the rotary transformer (102) so that measured power (P1) transferred from a first electrical system (22) to a second electrical system (24) matches an inputted order power signal (P0). The controller limits the power requested by the power order signal based on measured voltages, e.g., the controller has a power-limit function which overrides the order power signal when a measured power exceeds a limit computed from the measured voltages. The limit function is a fraction of maximum theoretical power.Type: GrantFiled: October 3, 2000Date of Patent: March 12, 2002Inventors: Mark A. Runkle, Einar V. Larsen
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Patent number: 6198238Abstract: An electrical generator, consisting of a high phase order generator and a high phase order cycloconverter. Output from said cycloconverter may be high phase order, three phase, single phase, or direct current. Output from said cycloconverter may be of arbitrary frequency, voltage, and phase. Power electronic components are smaller and more efficiently used. Slower and therefor less expensive devices may be beneficially used. Variable speed resources may be used without the use of a DC to DC converter, enhancing power production efficiency. In a beneficial embodiment of the present invention, said cycloconverter is used to provide power directly to a high phase order motor, whereby diesel electric drive means may be constructed to higher specific power and higher efficiency.Type: GrantFiled: December 7, 1995Date of Patent: March 6, 2001Assignee: Borealis Technical LimitedInventor: Jonathan S. Edelson
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Patent number: 4573004Abstract: A variable electrical energy stabilizer is supplied with a source having a voltage magnitude that varies to maintain a constant ratio with the pulsation frequency of the source. The variable supply is derived from a variable energy source such as a kinetic energy accumulator which is intended for feeding a telephone exchange or an electrical unit on a sealed off site. The stabilizer supplies a d.c. output current to a load having a predetermined impedance. To provide the load with continuous energy with a constant amplitude via solely passive components, the stabilizer comprises an inductive circuit having an inductance substantially equal to the quotient of the constant ratio to the amplitude of the output current. The inductance circuit has a very high impedance compared to the load impedance.Type: GrantFiled: January 19, 1983Date of Patent: February 25, 1986Inventor: Marcel Herve
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Patent number: 4155114Abstract: A treble frequency converter comprising a stator and a synchronously rotating rotor. The stator is provided with a primary winding connectable to a polyphase alternating current source and a secondary winding from which treble frequency power can be taken, the secondary winding having three times as many poles as does the primary winding. The rotor has the same number of poles as does the primary winding and the rotor poles are shaped so that the air-gap between the stator and rotor poles will serve to produce third harmonic flux waves effectively and economically.Type: GrantFiled: April 13, 1978Date of Patent: May 15, 1979Assignee: Toyo Denki Seizo Kabushiki KaishaInventors: Zenkichi Tsuchiya, Fujio Ishikawa
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Patent number: 4077001Abstract: A dc/dc converter comprising a permanent magnet having spaced-apart poles and a permanent magnetic field extending between the poles of the magnet. A variable-reluctance core is disposed in the field in fixed relation to the magnet and the reluctance of the core is varied to cause the pattern of the lines of force of the magnetic field to shift. An output conductor is disposed in the field in fixed relation to the magnet and is positioned to be cut by the shifting lines of permanent magnetic force so that a voltage is induced in the conductor.Type: GrantFiled: April 16, 1976Date of Patent: February 28, 1978Inventor: Frank B. Richardson
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Patent number: 4063106Abstract: A tunable radiation source employing the stimulated Raman-scattering process is disclosed. The source generates several orders of Stokes radiation in an optical-fiber oscillator cavity, which Stokes radiation may be independently tuned by incorporating separate tuning elements for the several Stokes orders. Several different arrangements of fiber and tuning elements are disclosed.Type: GrantFiled: April 25, 1977Date of Patent: December 13, 1977Assignee: Bell Telephone Laboratories, IncorporatedInventors: Arthur Ashkin, Ravinder Kumar Jain, Chinlon Lin, Rogers Hall Stolen