Patents Examined by LaKaisha Jackson
  • Patent number: 10879808
    Abstract: A switched-tank DC transformer and a voltage ratio switching method thereof are provided. The switched-tank DC transformer includes an input terminal, an output terminal, 2n inverting switches, 2n rectifying switches, 2n?2 clamping switches, n resonance tanks and n?1 support capacitors. The inverting switches are serially connected in sequence. There is an inverting node between every two neighboring inverting switches. A terminal of the rectifying switch is connected with a rectifying node. A terminal of the two clamping switch is electrically connected with a clamping node. The resonance tank is electrically connected between the inverting node and the rectifying node. The support capacitor is electrically connected between the inverting node and the clamping node. Every support capacitor and every resonance tank is switchable to be in a normal state or a voltage ratio switching state, thus a voltage ratio of the switched-tank DC transformer is allowed to vary correspondingly.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: December 29, 2020
    Inventors: Ming Li, Yiqing Ye
  • Patent number: 10871794
    Abstract: Voltage regulator circuitry includes a first element, a second element, an amplifier and a reference voltage source. The first element converts an input voltage and outputs a predetermined output voltage. The second element outputs a current in proportion to a current based on the outputted voltage from the first element. The amplifier amplifies a differential voltage between a reference voltage and a voltage in proportion to the output voltage, the amplifier which controls the first element based on the differential voltage. The reference voltage source outputs the reference voltage which adapts to a comparison between the current outputted from the second element and a reference current.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 22, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventor: Akio Ogura
  • Patent number: 10855166
    Abstract: A controller circuit for a switch-mode power supply (SMPS). The controller circuit is configured to generate, with a plurality of phases, a combined output current at a supply node to supply a load, determine a ripple shaping current complimentary to an estimated ripple at the combined output current using a number of active phases of the plurality of phases that generate the combined output current, and generate, with an auxiliary phase, the ripple shaping current at the supply node to reduce ripple occurring at the combined output current.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 1, 2020
    Assignee: Infineon Technologies AG
    Inventors: Pawan Garg, Stefan Schumi
  • Patent number: 10848076
    Abstract: In a rectifying circuit including a HEMT and a diode connected antiparallel to the HEMT, a forward voltage drop when the diode starts to be conductive is made smaller than a voltage drop when the HEMT is reverse-conductive in an OFF state corresponding to an amount of rectified current when the HEMT is reverse-conductive in an ON state, inductance of a pathway extending through the diode is made larger than inductance of a pathway extending through the HEMT among the pathways connecting a source terminal and a drain terminal of the HEMT, and an amount of charge accumulated in a parasitic capacitance of the diode is made smaller than an amount of charge accumulated in an output capacitance of the HEMT. With this, there is provided a rectifying circuit in which switching loss due to the charge accumulated in the output capacitance of the HEMT is reduced.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: November 24, 2020
    Inventor: Takeshi Shiomi
  • Patent number: 10840804
    Abstract: Systems, methods, and circuitries are provided to generate a regulated supply voltage based on a target voltage. In one example, a method includes converting the target voltage to a first digital time-based signal and converting the regulated supply voltage to a second digital time-based signal. A difference signal is generated based at least on a difference between the first digital time-based signal and the second digital time-based signal. Regulator circuitry is controlled to generate the regulated supply voltage based at least on the difference signal.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: November 17, 2020
    Assignee: Infineon Technologies AG
    Inventor: Franesco Brandonisio
  • Patent number: 10840046
    Abstract: An electrical device for supplying electrical power to multiple power units includes a first module, including an electrical circuit breaker; a second, removable module, including a control circuit, programmed to trip the circuit breaker depending on values of the electric current that is flowing through power lines; a connection interface provided with output connectors that are connected to the power lines; removable elements, each containing an item of electrical equipment that is intended to be connected to an electrical power unit and to one of the power lines by the output connectors, the control circuit being connected to an interface for controlling each removable element via a data link by virtue of the connection interface.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 17, 2020
    Assignee: Schneider Electric Industries SAS
    Inventors: Stephane Delbaere, Gilles Baurand
  • Patent number: 10833594
    Abstract: A method of operating a converter includes: charging an LC tank coupled between a switching network and a primary winding of a transformer for a first period of time by connecting the LC tank to one or more input capacitors via the switching network, where the switching network includes a first half-bridge coupled between a first supply terminal and a center node, and a second half-bridge coupled between the center node and a second supply terminal; preventing energy transfer from the primary winding of the transformer to a secondary winding of the transformer during the charging of the LC tank; and after charging the LC tank, discharging the LC tank for a second period of time by disconnecting a terminal of the LC tank from the one or more input capacitors.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: November 10, 2020
    Inventors: Kennith Kin Leong, Werner Konrad, Gerald Deboy
  • Patent number: 10826487
    Abstract: One example relates to a circuit that includes a first integrated circuit die and a second integrated circuit die. The first integrated circuit die has a power field effect transistor (FET) and a pull-down FET coupled to the power FET. The second integrated circuit die has a pull-up FET coupled to the power FET.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: November 3, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Haian Lin, Frank Alexander Baiocchi, Scott Edward Ragona, Jonathan Almeria Noquil
  • Patent number: 10826409
    Abstract: An electrical architecture for controlling inverters and to an aircraft includes the architecture. The electrical architecture comprises: a plurality of converters capable of operating independently of one another, each converter being intended to power a charge, associated with each converter/charge pair: a charging loop, comprising at least one sensor measuring a parameter that is characteristic of the operation of the charge, an operation control module, receiving an operation setpoint of the charge and information originating from the operation sensor, the operation control module controlling a current setpoint of the considered converter so that the information originating from the operation sensor follows the operation setpoint. The operation control module is common to the converters.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 3, 2020
    Assignee: THALES
    Inventors: Frédéric Lacaux, Stéphane Guguen, Joël Devautour
  • Patent number: 10819239
    Abstract: A switched-mode power supply includes a transformer, a switching element, a switching controller, a voltage generator circuit, an overvoltage protection circuit, and a load increase circuit. The overvoltage protection circuit is configured to, when a first DC voltage outputted from the voltage generator circuit is below a predetermined voltage, apply a first drive voltage to an input terminal of the switching controller, and to, when the first DC voltage exceeds the predetermined voltage, apply a second drive voltage, which is different from the first drive voltage, to the input terminal, whereby the switching controller stops controlling switching operation. The load increase circuit is configured to, when the output voltage exceeds a threshold voltage, flow a current from the secondary side, thereby increasing a load applied to the secondary side. The threshold voltage is less than a rated voltage of the transformer and greater than the target voltage.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 27, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shiro Ueno, Katsumi Inukai, Hideki Arimoto
  • Patent number: 10819228
    Abstract: This disclosure describes techniques for controlling a power supply voltage for a high-side gate driver that is used in a power converter. In some examples, in response to an overvoltage condition that occurs on an input voltage lead of a power converter, a power converter may decouple a terminal of a charge pump capacitor from the input voltage lead, and couple the terminal of the capacitor to a reference voltage lead. In further examples, in response to an overvoltage condition that occurs on an input voltage lead of a power converter, a power converter may turn off both switching transistors.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 27, 2020
    Assignee: Texas Instruments Incorporated
    Inventor: Indumini W. Ranmuthu
  • Patent number: 10804811
    Abstract: A duty calculating unit receives a phase, an amplitude, a command value of a voltage across a capacitor, and a command value of a DC voltage, and calculates an original discharge duty and an original rectification duty. A duty correcting unit corrects the original discharge duty and the original rectification duty to obtain a discharge duty and a rectification duty. The duty calculating unit and the duty correcting unit can collectively be regarded as a duty generating unit that generates the discharge duty and the rectification duty.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 13, 2020
    Inventor: Kenichi Sakakibara
  • Patent number: 10804804
    Abstract: Technologies pertaining to a power supply that includes a nonlinear transmission line are described herein. In an embodiment, a DC power supply comprises a pulsing circuit that receives a DC input and outputs a first plurality of pulses having a first frequency to a nonlinear transmission line. The nonlinear transmission line receives the first plurality of pulses and outputs a second plurality of pulses having a second frequency that is greater than the first frequency. The second plurality of pulses is then received at an amplifier/rectifier circuit that amplifies the second pulses to increase a voltage amplitude of the pulses, and rectifies the pulses to provide a substantially constant DC output.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 13, 2020
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Juan M. Elizondo-Decanini, Kevin Youngman
  • Patent number: 10797487
    Abstract: Provided is an on-line input and quit control method for a voltage-source converter unit. The method achieves the on-line input of a voltage-source converter unit by means of performing steps, such as charging control, deblocking transfer control and operation adjustment control, on a voltage-source converter to be input, and achieves the on-line quitting of the voltage-source converter unit by means of performing steps, such as direct-current voltage reduction control, bypass transfer control and converter blocking control, on a voltage-source converter to be quit. Correspondingly, provided is an on-line input and quit control device for a voltage-source converter unit, which can achieve the on-line steady input and quitting of a voltage-source converter in a series-type hybrid direct-current power transmission system or a series-type flexible direct-current power transmission system, without affecting the normal and stable operation of other already running converters.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 6, 2020
    Inventors: Jiang Lu, Yu Lu, Yunlong Dong, Nannan Wang, Yongping Wang, Wenqiang Zhao, Jie Tian, Haiying Li
  • Patent number: 10775827
    Abstract: A controllable temperature coefficient bias (CTCB) circuit is disclosed. The CTCB circuit can provide a bias to an amplifier. The CTCB circuit includes a variable with temperature (VWT) circuit having a reference circuit and a control circuit. The control circuit has a control output, a first current control element and a second current control element. Each current control element has a “controllable” resistance. One of the two current control elements may have a relatively high temperature coefficient and another a relatively low temperature coefficient. A controllable resistance of one of the current control elements increases when the controllable resistance of the other current control element decreases. However, the “total resistance” of the current control circuit remains constant with a constant temperature. The VWT circuit has an output with a temperature coefficient that is determined by the relative amount of current that flows through each current control element of the control circuit.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: September 15, 2020
    Assignee: pSemi Corporation
    Inventors: Robert Mark Englekirk, Keith Bargroff, Christopher C. Murphy, Tero Tapio Ranta
  • Patent number: 10739804
    Abstract: Various embodiments of the invention may be used to find a combination of voltage and frequency that results in a minimum amount of energy consumption in a digital system, including energy consumed by the system's voltage regulator (VR). The process may involve finding a separate point of minimum energy consumption for each of several different modes of the VR, where a mode is the ratio of Vin to Vout for that VR. The smallest value of those points may then be selected as the overall minimum. The process for making this determination may be performed in situ while the device is in operation, and may encompass changes in operational temperature, load, and process variations.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: August 11, 2020
    Assignee: Intel Corporation
    Inventors: Sriram R. Vangal, Turbo Majumder, Vivek De
  • Patent number: 10727830
    Abstract: A switch of an inverter of an X-ray tube power supply including: at least four MOSFETs aligned in parallel; a plurality of intermediate radiators positioned between the MOSFETs in order to separate two successive MOSFETs; at least four snubbers positioned in parallel, each being positioned beside a MOSFET; a control unit of said switch positioned so that the succession of MOSFETs is positioned between the alignment of snubbers and the control unit.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: July 28, 2020
    Inventors: Nicolas Levilly, Denis Perrilliat-Amede, Patrick Feat, Daniel Dumourier, Elie Herve
  • Patent number: 10720772
    Abstract: A filtering arrangement for a system including a power electronics device and an external power storage/discharge element, which power electronics device includes a power module and a three-phase filter between the AC power terminals of the power module and the supplying AC power grid, and which power module includes a DC intermediate power bus, and which three-phase filter between the AC power terminals and the supplying AC power grid includes two three-phase inductors, and which external power storage/discharge element has two DC power terminals which are connected to the DC intermediate power bus of the power electronics device. The filtering arrangement includes a common mode inductor which is connected between the DC power terminals of the external power storage/discharge element and the terminals of the DC intermediate power bus of the power module.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: July 21, 2020
    Assignee: Vacon Oy
    Inventor: Nicklas Sodo
  • Patent number: 10700588
    Abstract: A multi-level inverter having one or more banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the plurality of low voltage MOSFET transistors in each bank to switch at multiple times during each cycle.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: June 30, 2020
    Assignee: Solaredge Technologies Ltd.
    Inventors: Ilan Yoscovich, Tzachi Glovinsky, Guy Sella, Yoav Galin
  • Patent number: 10691151
    Abstract: A system includes a first transistor having a drain and source connected between a supply voltage and an output of a voltage regulator. A gate of the first transistor receives a first gate voltage. The system includes a second transistor having a drain and source connected between the supply voltage and the drain of the first transistor. The second transistor protects the first transistor from excessive voltage. The system includes a level shifter connected between a gate of the second transistor and a gate of the first transistor. The level shifter produces a level-shifted gate voltage for the second transistor that is based on the first gate voltage and that is proportional to an output load current output at the source of the first transistor.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: June 23, 2020
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Robert A. Greene, Jacob K. Easter