Including Pre Or Post Regulation Patents (Class 323/266)
  • Patent number: 11296541
    Abstract: A power supply continuity system that maintains power continuity of a system, for example, a power tool. A reserve power supply, such as a capacitor, is operably coupled to a primary power supply in a parallel configuration to provide power to the system when the primary power supply is inoperable or disconnected. The reserve power supply can also be implemented in power regulation circuitry, for example, circuitry that controls the power output of the primary power supply, so that the reserve power supply can be included on a printed circuit board (PCB) and decrease costs of manufacturing.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 5, 2022
    Assignee: Snap-on Incorporated
    Inventor: Matthew M. Crass
  • Patent number: 11289897
    Abstract: A circuit includes a voltage detection path having a first transistor and a second transistor coupled to the first voltage detection path by a first terminal of the second transistor. The first voltage detection path includes: a first current source and a first voltage divider unit coupled to the first current source. The first transistor is coupled to the first voltage divider unit by a first terminal of the first transistor. A first voltage value at a second terminal of the first transistor is configured to switch between a first high voltage value and a first low voltage value at least partially based on a first detection voltage value provided at the first terminal of the first transistor by the first voltage divider unit. A second voltage at a second terminal of the second transistor is configured to switch between a second high voltage value and a second low voltage value at least partially based on the first voltage value at the second terminal of the first transistor.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: March 29, 2022
    Assignee: Crane Electronics, Inc.
    Inventors: Cuon Lam, Ryan Ricchiuti, Reza Ahmadi, Sovann Song
  • Patent number: 11290005
    Abstract: A power system includes a power conversion stage that receives power from an input source and delivers power to a load via a power distribution bus. The power distribution bus may include a DC transformer such as a fixed ratio bus converter or VTM having an equivalent series resistance. A control system samples the voltage delivered by the power conversion stage at a location close to the output of the power conversion stage, and the load voltage at a location close to the load. The samples may be synchronized by means of a data bus that provides communication between a control device and an output monitor. Synchronization may be accomplished within a sampling period that is short relative to changes in the voltages and currents. Each set of samples may be used to determine a value of the bus resistance. Multiple samples may be averaged to improve accuracy in the determination.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: March 29, 2022
    Assignee: VICOR CORPORATION
    Inventor: Patrizio Vinciarelli
  • Patent number: 11239755
    Abstract: A power management device is disclosed, including a first DC-DC converter coupled to a first output voltage line, a second DC-DC converter coupled to a second output voltage line, a first set of switches associated with the first DC-DC converter, and a second set of switches associated with the second DC-DC converter. The power management device may further include a controller configured to toggle one or more switches of the first set of switches and one or more switches of the second set of switches, and a multi-mode radio-frequency front-end block communicatively coupled to the controller.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 1, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventor: David Steven Ripley
  • Patent number: 11209846
    Abstract: In one embodiment, a semiconductor device includes a reference voltage supply circuit configured to supply a first reference voltage and a second reference voltage. The device further includes a power source voltage supply circuit including a first power source voltage generator supplied with the first reference voltage and configured to generate a first power source voltage, and a second power source voltage generator supplied with the second reference voltage and configured to generate a second power source voltage, the power source voltage supply circuit being configured to supply the first power source voltage and the second power source voltage to a power source voltage line. The device further includes a voltage control circuit connected to the power source voltage line, and configured to control a value of the first reference voltage and a value the second reference voltage.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: December 28, 2021
    Assignee: KIOXIA CORPORATION
    Inventors: Kazuhiko Satou, Tomonori Kurosawa, Dai Nakamura
  • Patent number: 11175319
    Abstract: A wireless-power-transmission-system includes a bridge with a tank-capacitor coupled thereto, a sense-resistor coupled between the bridge and an input of a regulator, a switching-circuit having first and second inputs coupled across the sense-resistor, and a gain-stage having first and second inputs capacitively coupled to first and second outputs of the switching-circuit. An ADC digitizes output of the gain-stage by comparing the output to a reference voltage, and a temperature-independent current source is coupled to a reference-resistor to generate the reference voltage. In a reset-phase, the switching-circuit shorts the inputs of the gain-stage to one another, and the gain-stage shorts its inputs to its output. The switching-circuit, in a first-chopping-phase, couples the sense-resistor between the first and second inputs of the gain-stage, and in a second-chopping-phase, couples the sense-resistor in reverse between the second and first inputs of the gain-stage.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 16, 2021
    Assignee: STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Yannick Guedon, Baris Volkan Yildirim, Teerasak Lee
  • Patent number: 11159087
    Abstract: The present disclosure discloses a switching regulator circuit comprising: a series regulator having at least one regulating transistor with the connections collector, base and emitter; and a DC-DC converter, in particular a step-down converter, which is connected downstream of the series regulator, wherein the switching regulator circuit is designed such that the DC-DC converter is regulated to a constant collector-emitter voltage drop across the regulating transistor; in particular, the DC-DC converter is activated such that a constant collector-emitter voltage drop results. In addition, the present disclosure also discloses a corresponding method.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: October 26, 2021
    Assignee: Endress+Hauser Conducta GmbH+Co. KG
    Inventors: Björn Haase, Manuel Schmittner
  • Patent number: 11159009
    Abstract: Exemplary embodiments are related to a buck regulator. A buck regulator may include an inductor selectively coupled to an output and a power supply. The regulator may also include a controller configured to detect an over-current event if an amount of current flowing from the power supply to the inductor is equal to or greater than a current threshold and detect a low-voltage event if a voltage at the output is less than or equal to a reference voltage. Further, in response to the over-current event and the low-voltage event, the controller may be configured to prevent current from flowing from the power supply to the inductor until substantially all energy stored by the inductor has been dissipated.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: October 26, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventor: Marko Koski
  • Patent number: 11088660
    Abstract: A power supply configured to supply a modulated voltage to a power amplifier is shown. The power supply has an alternating current (AC) component generator, a direct current (DC) component generator, and a transition accelerator. The AC component generator generates an AC component of the modulated voltage according to an envelope tracking signal. The DC component generator generates a DC component of the modulated voltage according to the operational voltage range of the power amplifier. The transition accelerator is coupled to an output terminal of the DC component generator to speed up the transition of the modulated voltage.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: August 10, 2021
    Assignee: MEDIATEK INC.
    Inventors: Shih-Mei Lin, Chien-Wei Kuan, Che-Hao Meng, Chen-Yen Ho
  • Patent number: 11063515
    Abstract: A power converter is provided. The power converter includes a switched-capacitor conversion circuit and an inductor buck circuit. The switched-capacitor conversion circuit receives an input voltage and operates according to a first operation frequency to convert the input voltage to an intermediate voltage. The inductor buck circuit is coupled to the switched-capacitor conversion circuit in series. The inductor buck circuit receives the intermediate voltage and operates on a second operation frequency to generate an output voltage at a conversion output terminal according to the intermediate voltage. The first operation frequency is determined according to the second operation frequency.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: July 13, 2021
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Po-Hsun Huang
  • Patent number: 11038420
    Abstract: Circuits and methods to enable wireless power transmission and reception are presented. A two-stage power converter has a boost regulator to boost an input voltage to an intermediate voltage. Moreover, the two-stage power converter may also comprise a charge pump coupled to the boost regulator to generate an output voltage based on the intermediated voltage. More particularly, the charge pump may comprise a plurality of transistor devices and a flying capacitor and the charge pump may be bypassed during a bypass mode of operation. Finally, the two-stage power converter may have control circuitry coupled to the charge pump. In particular, the control circuitry may generate a control voltage of a first transistor device of the plurality of transistor devices in order to regulate a discharge rate of the flying capacitor, during a transition phase from the bypass mode of operation to a normal mode of operation.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: June 15, 2021
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Mark Mercer, Jeffrey Kanner
  • Patent number: 11025164
    Abstract: Various embodiments of a fault detector for a voltage converter are described. In one example embodiment, briefly, the fault detector is capable to detect one or more fault events during operation of a voltage converter. Likewise, the fault detector is capable to generate one or more fault signals with respect to the one or more to be detected fault events. The one or more fault signals, in the example embodiment, to signal a disconnect switch of the voltage converter to electrically disconnect or otherwise via a high impedance state to limit current flow through at least one switch of a set of switches of the voltage converter. In another example embodiment, the fault detector, responsive to the one or more fault signals, capable to generate a bus interrupt signal on a pin out, such as of an integrated circuit (IC) for use with the voltage converter, or capable to toggle a fault indicator pin out of the IC. Other additional embodiments are also described.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: June 1, 2021
    Assignee: pSemi Corporation
    Inventors: Aichen Low, David M. Giuliano, Gregory Szczeszynski, Jeff Summit, Oscar Blyde
  • Patent number: 11002767
    Abstract: The disclosure describes techniques for measuring the average output current of a power converter circuit by determining peaks valleys in the output current. A current monitoring circuit may include an averaging unit, which may sample the output current during a current peak as well as during a current valley. During a hold phase the averaging unit may output a signal proportional to the average output current based on the sampled peak current and sampled valley current. In some examples, the averaging unit may include three functional units. A first unit may be configured to determine the output current, a second block may be configured to hold the previously determined peak current and a third block may be configured to hold the previously determined valley current. In this manner the averaging unit may continuously output a signal proportional to the average output current of the power converter.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: May 11, 2021
    Assignee: Infineon Technologies AG
    Inventors: Giuseppe Loccia, Marco Flaibani
  • Patent number: 11002771
    Abstract: In one or more embodiments, an efficient scheme is provided for sampling inductor currents in a digital multiphase PWM controller used for high-bandwidth voltage regulation. Some embodiments use the data from the PWM modulator along with weighted states based on the PWM waveform and past conversions in order to prioritize which current sense input should be sampled for each conversion. In these and other embodiments, a single ADC is used to sample inductor currents from two or more phases in a multiphase PWM controller, thereby providing power and area savings, for example.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 11, 2021
    Assignee: Renesas Electronics America Inc.
    Inventors: Travis Guthrie, Narendra Kayathi
  • Patent number: 10998815
    Abstract: Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltage based on the input voltage, subtracting the reference voltage from the current sense signal thus generating a second measurement signal to control the current measurement; subtracting the second measurement signal from the input voltage to obtain a difference signal, wherein the difference signal is largely minimized by removing overtones of the fundamental frequency; generating, based on the difference signal, a second error signal; using a sum of the second error signal as a first order correction to the first error signal to regulate the converter.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 4, 2021
    Inventor: Robert S. Wrathall
  • Patent number: 10990150
    Abstract: A circuit comprising a first processing element having a first output configured to couple to a voltage control circuit, a second output configured to couple to a gate terminal of a first transistor, and a third output configured to couple to a first node and a control circuit. The control circuit comprises a second processing element having multiple outputs, a second transistor having a gate terminal configured to couple to one of the outputs of the second processing element, a first terminal configured to couple to a second node and to a drain terminal of the first transistor, and a second terminal, and a third transistor having a gate terminal configured to couple to a second of the outputs of the second processing element, a first terminal configured to couple to a third node, and a second terminal.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 27, 2021
    Assignee: Texas Instruments Incorporated
    Inventor: Deric Wayne Waters
  • Patent number: 10992236
    Abstract: An improved AC direct to DC extraction conversion system is described. The AC direct to DC extraction conversion system consists of an efficient electronic switch employed to provide controlled pulsed power to a storage device. The AC to DC converter in one minimal version consists of a pair of N-MOSFET transistors, a voltage divider, a storage element and a pair of diodes. The design enables high efficiency with minimal components that may be fully integrated onto silicon.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: April 27, 2021
    Inventors: Mark Telefus, Harry Rodriguez
  • Patent number: 10978871
    Abstract: Provided is a power distribution system that includes a reconfigurable DC/DC power converter configured to be connected with an energy storage device at an input end for receiving an input voltage therefrom, and a power electronics building block having a primary bridge unit, a secondary bridge unit magnetically connected with the primary bridge unit, and an outer bridge unit at an output end and connected to an output of the secondary bridge unit, configured to output an output voltage.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 13, 2021
    Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LTD
    Inventors: Zhi Zhou, Dong Dong
  • Patent number: 10971997
    Abstract: A method for providing an output power of a switched mode power converter comprises the steps of determining a block length and, if a set value of the output power is below a first power threshold, preventing a power flow through the converter in each period of the multiphase AC voltage for at least one blocking interval. Each blocking interval has a duration of one block length. The switched mode power converter has a multiphase AC side with a number N of conductors for receiving a multiphase AC voltage. The number N of conductors is at least three. Power flows into the switched mode power converter through a combination of current-carrying conductors. The block length is defined by a time span between two subsequent changes of the combination of the current-carrying conductors.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 6, 2021
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD
    Inventor: Christian Krumpholz
  • Patent number: 10948525
    Abstract: A DC-to-DC converter includes at least one primary switch, a primary inductor, and a switch rectifier circuit or a switch flyback circuit. A switch driving circuit is structured to drive the at least one primary switch. A fault detection method includes directly or indirectly detecting a voltage waveform or a current waveform of at least one terminal of the primary inductor, and determining whether the at least one primary switch is in a diode rectifying state or in a diode flyback state based on the voltage waveform or the current waveform to detect whether there is a fault in the switch driving circuit.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: March 16, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Qiang Li, Xiaojun Wang
  • Patent number: 10942535
    Abstract: A method for current limiting an operational amplifier includes sensing a first current through a first branch of the operational amplifier. The first branch conducts the first current from a limited current supply connected to an operational amplifier output. The first current is compared to a reference current to generate a regulation signal. A variable current source is controlled with the regulation signal. An output current of a transconductance amplifier is limited with the variable current source to limit the first current in response thereto.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 9, 2021
    Assignee: NXP USA, Inc.
    Inventors: Mahraj Sivaraj, John Pigott
  • Patent number: 10935645
    Abstract: Methods, systems, and apparatuses are disclosed for ultrasound imaging comprising Time Delay Spectrometry. A frequency swept signal can be transmitted through a medium, such as human tissue. The signal can be a low-voltage signal (e.g., 0 volts to 5 volts peak-to-peak) transmitted for long duration (e.g., 20 milliseconds) at various frequencies. As the signal propagates through the medium it can be reflected and delayed. A delay associated with the signal the can cause a change in the associated frequencies. The signal can be filtered to retain only frequencies in an audio frequency range. The signal can be beamformed and processed to produce an image.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 2, 2021
    Assignee: GEORGE MASON UNIVERSITY
    Inventors: Siddhartha Sikdar, Parag Chitnis, Nima Akhlaghi, Elizabeth Tarbox, Paul Otto, Paul Gammell
  • Patent number: 10928846
    Abstract: A power detect circuit is disclosed. A power detect circuit includes a voltage multiplier that receives an external supply voltage and generates a second supply voltage that is greater than the former. A voltage regulator is coupled to receive the second supply voltage and outputs a regulated supply voltage. A bandgap circuit is coupled to receive the second supply voltage when a first switch is closed, and the regulated supply voltage when a second switch is closed. The bandgap circuit generates a reference voltage for the voltage regulator, as well as one or more output voltages. A comparator circuit is coupled to receive the one or more output voltages from the bandgap circuit, and may compare these one or more output voltages to the regulated supply voltage.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 23, 2021
    Assignee: Apple Inc.
    Inventors: Seyedeh Sedigheh Hashemi, Vahid Majidzadeh Bafar, Ali Mesgarani, Mansour Keramat
  • Patent number: 10886834
    Abstract: A power converter and a method for receiving an input voltage and providing an output voltage is presented. The power converter has a switching circuit to generate the output voltage. The switching circuit has a first switch, a switch control circuit arranged to selectively operate the first switch in a first state or a second state. There is a ripple reduction circuit to set a first state duration based on a property of a load current. The load current is a current that the power converter provides to a load that is coupled to the output voltage.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 5, 2021
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Der Ju Hung, Yu Ta Lin, Yuan Wen Hsiao, Chi-Chia Huang, Chia Wen Tsai
  • Patent number: 10875397
    Abstract: A hybrid energy storage module (HESM) configured to be used on an aircraft to provide electrical energy may include a battery and an ultracapacitor each configured to receive the electrical energy, store the electrical energy, and discharge the electrical energy, a power bus in electronic communication with the battery and the ultracapacitor, and a controller coupled to the battery and the ultracapacitor and configured to control charging and discharging of the battery and of the ultracapacitor such that a measured voltage of the power bus is adjusted based upon at least one of a battery state of charge (SOC) or an ultracapacitor SOC.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 29, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Matthew L. Wilhide
  • Patent number: 10871792
    Abstract: Disclosed is a system and method for large-current power supply and constant-current control. Large-current power supply includes: primary power supply, energy-feedback circuit and direct-current (DC) large-current generator; energy-feedback circuit includes freewheel diode and magnetic reset winding; and secondary coil of DC large-current generator is connected to load. Without output rectifier diode and filter capacitor at load end of large-current power supply provided herein, power consumption problem of output rectifier diode at large current is unnecessarily considered, and electrolytic capacitor is not needed for filtration; and therefore, service life of power supply is greatly prolonged, larger current is output by extending, and power supply has advantages of simple circuit, small size, easy control and high working reliability.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 22, 2020
    Inventors: Xiang'ou Zhu, Yu Xu, Zhiwen He, Yuxing Dai
  • Patent number: 10855167
    Abstract: An apparatus includes a first winding and a second winding on a core and having first taps coupled in common to a first node of an inverter circuit. The apparatus further includes a switching circuit configured to selectively couple a second tap of the first winding to a second node of the inverter circuit and to selectively couple a second tap of the second winding to a third node of the inverter circuit. The switching circuit may be configured to provide a desired balance of first and second voltages at respective ones of the second and third nodes with respect to the first node. Related methods are also described.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: December 1, 2020
    Inventor: George William Oughton
  • Patent number: 10848056
    Abstract: A system for improving a power factor (PF) of a power converter in signal communication with a rectifier and an electromagnetic interference capacitor is disclosed. The system includes a controller and a threshold detector. The threshold detector is configured to measure and compare a rectified voltage against a threshold voltage and the controller is configured to set the power converter to a stop-mode. The power converter is set to the stop-mode at a stop-time that is less than a first zero-crossing time. The controller is further configured to set the power converter to a run-mode at a time that is past the first zero-crossing time.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: November 24, 2020
    Assignee: DIALOG SEMICONDUCTOR INC.
    Inventors: Naidong Xu, Laiqing Ping, Nan Shi
  • Patent number: 10814740
    Abstract: A hybrid energy storage module (HESM) configured to be used on an aircraft to provide electrical energy includes a first energy storage component and a second energy storage component each configured to receive the electrical energy, store the electrical energy, and discharge the electrical energy. The HESM also includes a controller coupled to the first energy storage component and the second energy storage component. The controller is configured to control charging and discharging of the first energy storage component and of the second energy storage component such that the first energy storage component is charged to a desired first energy storage component state of charge (SOC) before the second energy storage component is charged.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 27, 2020
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Matthew L. Wilhide
  • Patent number: 10812014
    Abstract: In various implementations, string inverter circuit configurations are provided that allow for increased device lifetimes. In one implementation, for example, an inverter includes a pair of inverter input terminals. A ground-balancing converter module is coupled between the pair of inverter input terminals and ground. The ground is disposed between each of the pair of inverter input terminals. A plurality of converter modules is coupled to an output of the ground-balancing converter module, each of the plurality of converter modules providing an output ac phase of the inverter. In another implementation, a method of controlling an inverter is provided. The method includes controlling a voltage level of each terminal of the pair of inverter input terminals to have equal magnitudes and opposite polarities with respect to a ground voltage.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: October 20, 2020
    Assignee: The Regents of the University of Colorado
    Inventor: Robert W Erickson
  • Patent number: 10802518
    Abstract: Embodiments of a power stage with vertical integration for high-density, low-noise voltage regulators are described. In some embodiments, an Information Handling System (IHS) may include: a processor; and a multi-phase voltage regulator (VR) coupled to the processor, where the multi-phase VR comprises at least one power stage, and where the at least one power stage includes: a High-Side Field-Effect Transistor (HSFET) die mounted on a leadframe; a Low-Side FET (LSFET) die mounted on the leadframe; at least one decoupling capacitor mounted on the leadframe; and a driver circuit mounted on a clip, where the clip overlays at least a portion of the HSFET die and the LSFET die.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 13, 2020
    Assignee: Dell Products, L.P.
    Inventors: Shiguo Luo, Wu Feng-Yu
  • Patent number: 10802523
    Abstract: A system and method for controlling a low-dropout regulator (LDO) is disclosed. The system and method includes a charge pump that is controlled to provide a charge pump voltage to power the LDO. The charge pump voltage can be adjusted relative to the LDO's input voltage to ensure efficient operation of the LDO for input voltages over a range. The charge pump is also controlled to limit the maximum charge pump voltage provided to ensure safe operation of the LDO. The system and method also includes a under voltage lockout circuit that enables the LDO when it is determined that the charge pump voltage is sufficient to meet multiple criteria enable For example, the charge pump voltage may be analyzed to determine if it is above a minimum voltage and also sufficiently higher than the LDO's output voltage.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 13, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Pavel Londak, Jan Matej, Petr Rozsypal
  • Patent number: 10804855
    Abstract: Various embodiments disclose a method and a device including: an antenna, a switching regulator, communication chip including an amplifier and a linear regulator operably connected to the amplifier and the switching regulator, the communication chip configured to transmit a radio-frequency signal from the electronic device through the antenna, and control circuitry configured to control the communication chip such that the linear regulator provides the amplifier with a voltage corresponding to an envelope of an input signal input to the amplifier, the input signal corresponding to the radio-frequency signal.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jooseung Kim, Dongil Yang, Youngmin Lee
  • Patent number: 10771015
    Abstract: Various embodiments disclose a method and a device including: an antenna, a switching regulator, communication chip including an amplifier and a linear regulator operably connected to the amplifier and the switching regulator, the communication chip configured to transmit a radio-frequency signal from the electronic device through the antenna, and control circuitry configured to control the communication chip such that the linear regulator provides the amplifier with a voltage corresponding to an envelope of an input signal input to the amplifier, the input signal corresponding to the radio-frequency signal.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jooseung Kim, Dongil Yang, Youngmin Lee
  • Patent number: 10761111
    Abstract: A system includes a controller for automated test equipment (ATE) contactor to interface with a device under test (DUT) including a power converter having a primary and secondary side, each side has an input/output (I/O) pin. The controller causes the ATE contactor to apply a load current on the secondary side of the power converter at a first value and vary the load current to a second value. The contactor receives first and second indications, at the first and second load currents, of a voltage on the primary side I/O pin, a voltage on the primary side of the power converter, an input current on the primary side of the power converter, a voltage on the secondary side I/O pin, and a voltage on the secondary side of the power converter. The controller determines a primary and secondary side ATE contactor resistances based on the first and second indications.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: September 1, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Arun Adoni, Suvadip Banerjee, Sreeram Subramanyam Nasum, Prajkta Vyavahare
  • Patent number: 10763759
    Abstract: An efficient, high density, inline converter module includes a power conversion circuit and an input wiring harness for connecting the input of the power circuit to a unipolar source. A second wiring harness or electrical connectors may be provided for connecting the output of the power conversion circuit to a load. Connections between a wiring harness and the power conversion circuit may comprise conductive contacts, configured to distribute heat. The power circuit may be over molded to provide electrical insulation and efficient heat transfer to external ambient air. A DC transformer based inline converter module may be used in AC adapter, vehicular, and power system architectures. An input connector for connecting the input wiring harness to the input source may be provided. In some embodiments the input source may be an AC source and the input connector may comprise a rectifier for delivering a rectified, unipolar, voltage to the input of the power conversion assembly via an input wiring harness.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 1, 2020
    Assignee: VLT, Inc.
    Inventors: Patrizio Vinciarelli, Andrew T. D{grave over ( )}Amico
  • Patent number: 10749432
    Abstract: A voltage converter includes a low dropout regulator voltage converter circuit. The voltage converter generates three voltages (e.g., 1.2 volts, 2.5 volts, and 1.8 volts) for an electronic system, which can be a smartphone or electronic tablet or other device. An implementation has at least one charge pump voltage converter circuit. The low dropout regulator voltage converter circuit provides an output voltage based on its input voltages and can operate with a very small input-to-output differential voltage. Compared to using a Buck converter, a low dropout regulator does not have an external inductor, which saves space. An implementation of the voltage converter can also include at least one charge pump voltage converter circuit to generate a voltage of the voltage converter.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: August 18, 2020
    Assignee: IML International
    Inventors: Alberto Giovanni Viviani, Dimitry Goder
  • Patent number: 10720830
    Abstract: This specification discloses methods and systems for reducing negative undershoot during transient load response for a PWM (Pulse Width Modulation) boost power converter. In some embodiments, reduction of negative undershoot during transient load response is achieved by overriding the PWM duty cycle to a maximum duty cycle when VDDBOOST drops during load step. This maximum duty cycle (“max”) mode is triggered when VDDBOOST is within a hysteresis window. Setpoint for maximum duty cycle is versus DCDC converter output and input voltage. In some embodiments, a lookup table is implemented for determining the setpoint for maximum duty cycle.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: July 21, 2020
    Assignee: NXP B.V.
    Inventors: Melaine Philip, Fabien Boitard
  • Patent number: 10700599
    Abstract: A power system includes a power conversion stage that receives power from an input source and delivers power to a load via a power distribution bus. A control system samples the voltage delivered by the power conversion stage at a location close to the output of the power conversion stage and the load voltage at a location close to the load. The control system further measures the current flowing between the output and the load through the power bus. The samples may be used to determine a representation of the bus resistance. The determined bus resistance may be used to introduce a negative resistance characteristic in the power conversion stage as a way of compensating for the actual bus resistance.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: June 30, 2020
    Assignee: VLT, Inc.
    Inventor: Patrizio Vinciarelli
  • Patent number: 10700624
    Abstract: A method of controlling a wind turbine generator (1) comprising an electrical generator (10) and a power converter (12), the power converter (12) comprising an electrical switch (14a, 14b) that is configured to process electrical power produced by the electrical generator (10), the method comprising: controlling an output from the electrical switch (14a, 14b) using a variable pulse-width modulated control signal, thereby to control characteristics of output power from the power converter (12); acquiring sample data (26) relating to an electronic signal within the wind turbine generator (1), wherein the sample data (26) is used for controlling the wind turbine generator (1); and dynamically adjusting a frequency (30) at which the sample data is acquired to synchronise data acquisition with a carrier frequency (24) of the control signal.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 30, 2020
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Gert Karmisholt Andersen, Kent Tange, Søren Andersen, Duy Duc Doan, Jens Peter Biltoft, Lars Helle, John Godsk Nielsen
  • Patent number: 10696183
    Abstract: A transformer apparatus for a charging station for electrically charging vehicles. The charging station includes at least two charging points. The transformer apparatus includes an input connection for electrical connection to an electrical power source. The transformer apparatus further includes at least one primary winding, and connected downstream electrically in series, at least three electrically parallel secondary windings that are DC-isolated from one another. The secondary windings are configured to be connected to at least two output connections of the at least two charging points of the charging station by switching logic. The switching logic connects at least two secondary windings electrically in parallel with a respective output connection of a respective charging point.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 30, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Christoph Roggendorf, Stefan Götz
  • Patent number: 10692464
    Abstract: A voltage supply unit includes a control circuit, a capacitor circuit and a unidirectionally-conductive circuit. The control circuit controls an output end of the control circuit to be electrically connected to a first input end or a second input end of the control circuit under the control of a voltage signal from a first voltage output end. The capacitor circuit controls a potential at a first input end. When a difference between a first level and a potential at the first input end is greater than or equal to a predetermined on-state voltage, the unidirectionally-conductive circuit allows a unidirectional current flowing from a first level end to a first end thereof, and when the difference between the first level and the potential at the first input end is smaller than the predetermined on-state voltage, controls the first level end to be electrically disconnected from the first input end.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 23, 2020
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Yang, Chunyang Nie, Ke Dai, Lei Guo, Shenghua Hu, Ruilian Li
  • Patent number: 10686368
    Abstract: A power electronic module (10) for a charging station having an input-side power factor correction circuit, a voltage link and an output-side DC chopper. The power factor correction circuit is of three-phase (11) design for three-phase current; each phase (11) has at least one high-voltage-side switch and one low-voltage-side switch; and diodes that prevent current from flowing back are installed. Also disclosed is a corresponding charging station and an electricity charging station.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 16, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Karsten Hähre, Raoul Heyne, Marija Jankovic, Christian Metzger
  • Patent number: 10680515
    Abstract: An apparatus for controlling a power converter that includes an inductance and a switched-capacitor network that cooperate to transform a first voltage into a second voltage features a controller, a switched-capacitor terminal for connection to the switched-capacitor network, and switches. at least one of which connects to the switched-capacitor terminal.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: June 9, 2020
    Assignee: pSemi Corporation
    Inventor: David Giuliano
  • Patent number: 10673333
    Abstract: A power module with current rerouting across a printed circuit board (PCB) for decreasing electromagnetic interference and signal degradation is applied in an electronic device. The power module includes the PCB, a switch control chip, a switch circuit, a filtering circuit, a first switch, a second switch, and a control unit. The PCB includes a powered copper area, a first ground copper area, and a second ground copper area. When in the S3, S4, or S5 state and a voltage output terminal is disabled, the control unit turns off the first switch and turns on the second switch, to couple the powered copper area to the second ground copper area. When the voltage output terminal is enabled, the control unit reverses the on and off operations to enable the voltage output terminal to output a voltage.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: June 2, 2020
    Assignees: HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Hsiang-Pin Tseng
  • Patent number: 10599202
    Abstract: An operation signal generating unit 11 and a reset unit 12 are included in a first circuit unit 10 that operates based on a first power supply voltage V1 and an output operation of a second power supply voltage B2 is stopped by outputting a reset signal Sr from the reset unit 12 to a regulator 20 in accordance with an operation signal Si of the operation signal generating unit 11. Hence, unlike a conventional technique, a large transistor for cutting off a power supply line is unnecessary, and therefore a device size can be reduced.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: March 24, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Takashi Sasaki, Yukimitsu Yamada
  • Patent number: 10581330
    Abstract: A power conversion circuit providing a regulated output voltage to a load can include a switching regulator with an input configured to be coupled to an input voltage source and an output configured to be coupled to the load. The power conversion circuit can further include a metered charge transfer converter, such as a charge pump or a switched or pulsed current source, having an input configured to be coupled to an input voltage source and having an output configured to be coupled to the load. A controller coupled to the metered charge transfer converter can be configured to operate the metered charge transfer converter to deliver energy to the load responsive to a dip of the regulated output voltage below a threshold caused by an increase in current drawn by the load. The metered charge transfer converter may be located closer to the load than the switching regulator.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Apple Inc.
    Inventors: Damon Lee, Jamie L. Langlinais, Jonathan M. Audy, Mark A. Yoshimoto, Rajarshi Paul, Talbott M. Houk
  • Patent number: 10571998
    Abstract: Systems and methods for operating computing devices at peak power efficiency in real time are disclosed. According to an aspect, a method includes analyzing a set of input and output characteristics of a component operable on a computing device servicing one or more workloads. The method also includes determining whether an efficiency metric associated with the component is met based on the set of input and output characteristics. Further, the method includes setting an indicator in response to determining that the efficiency metric is met. Further, the method includes assigning additional workload to another computing device based on whether the indicator is set.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 25, 2020
    Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.
    Inventor: Robert R. Wolford
  • Patent number: 10566923
    Abstract: A motor drive device includes a PWM converter configured to convert AC power supplied from an AC power supply into DC power and supply it to a DC link, a DC link capacitor which is provided in the DC link and may store the DC power, an inverter configured to convert the DC power in the DC link into AC power for motor driving and output it, and a boosting ratio control unit configured to control the boosting ratio as the ratio of the value of the DC voltage output from the PWM converter to the peak value of the AC voltage input from the AC power supply, to allow a motor to be driven using AC power output by converting the DC power stored in the DC link capacitor by the inverter during shut-off of supply of the DC power from the PWM converter to the DC link.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: February 18, 2020
    Assignee: FANUC CORPORATION
    Inventor: Wataru Kuroki
  • Patent number: 10536141
    Abstract: The purpose of the present invention is to provide a semiconductor device that is small and has diagnosability, and that can quickly recover from power source malfunctions. Provided is a semiconductor device that includes: a control signal generation circuit that generates control signals which differ according to the fluctuation time of power-source voltage; and a control circuit that changes an operation sequence according to the differences in the control signals.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 14, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shigenobu Komatsu, Kentarou Miyajima, Hiroshi Onuki, Junji Onozuka