Patents Examined by Thienvu V. Tran
  • Patent number: 11522450
    Abstract: Operating DC to DC power converters. At least some of the example embodiments are methods including: driving current through an inductance in a first on cycle of the power converter; comparing, by a comparator, a signal indicative of current through the inductance coupled to a first input of the comparator to a threshold applied to a second input of the comparator, and asserting a comparator output responsive to the signal indicative of current meeting the threshold; sampling a differential voltage across the first and second inputs, the sampling responsive to assertion of a comparator output, and the differential voltage indicative of propagation delay through the comparator; and compensating the comparator in a second on cycle for the compensation delay based on the differential voltage, the second on cycle subsequent to the first on cycle.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: December 6, 2022
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Pavel Horsky, Jan Plojhar
  • Patent number: 11522357
    Abstract: A terminal device, a method for monitoring battery safety of a terminal device, and a system for monitoring battery safety of a terminal device are provided. The method for monitoring battery safety includes the following. Acquire status information of a battery of the terminal device. Determine whether the terminal device meets a preset safety hazard condition according to the status information. Upon determining that the terminal device meets the preset safety hazard condition, control the terminal device to be in a power-off state or disconnect a power supply circuit.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 6, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Wei Chen, Zhihua Hu, Hui Zhang, Jialiang Zhang, Shebiao Chen
  • Patent number: 11521775
    Abstract: A device for the command and control of the electric power supply of windings of an electromagnetic actuator, comprising a plurality of electronic means configured to receive at the input either a direct current feeding voltage or alternatively an alternating current feeding voltage and to generate at the output a first digital command signal triggering an activation phase of the electromagnetic actuator in which at least one of the windings is powered, for a first predefined and adjustable time interval, with an activation current, a second digital command signal triggering a maintenance phase of the electromagnetic actuator in which the windings are powered with a maintenance current having an intensity lower than the activation current, and a third digital command signal triggering a third phase of deactivation of the electromagnetic actuator in which the power supply of the windings is interrupted for a second predefined and adjustable time interval.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: December 6, 2022
    Assignee: LMP SRL
    Inventors: Gabriele Valentino De Natale, Fedele D'alessandro
  • Patent number: 11520363
    Abstract: A system comprising: a LDO regulator configured to receive a supply voltage and provide an output voltage based on a function of the supply voltage, the LDO regulator switchable between at least a first and second mode, wherein the first and second modes each define the output voltage provided to the output terminal based on different functions of the supply voltage; and a digital logic controller configured to select the mode of the LDO regulator by control signalling to the LDO regulator, the digital logic controller configured to receive power for the provision of the control signalling from the LDO regulator; wherein the LDO regulator comprises LDO start-up circuitry configured to cause the LDO regulator, during start-up, to default to a predetermined one of the first and second mode and the LDO start-up circuitry further configured to prevent the digital logic controller from controlling the mode of the LDO regulator.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 6, 2022
    Assignee: NXP B.V.
    Inventors: Antonius Martinus Jacobus Daanen, Klaas-Jan de Langen, Sybren Matthias Bouwhuis
  • Patent number: 11515786
    Abstract: Aspects of the present disclosure generally relate to methods and apparatus for continuous current sensing for a single-inductor multiple-output (SIMO) regulator. One example method includes operating a plurality of switches of the SIMO regulator, via a plurality of control signals, according to a plurality of switching states using a switching controller, sensing currents associated with at least a portion of the plurality of switches of the SIMO regulator using a plurality of current sense circuits, and selectively outputting a sense current from one of the plurality of current sense circuits based on a change in the plurality of controls signals occurring between a transition from a first switching state to a second switching state of the plurality of switching states.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: November 29, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Linfei Guo, Chengwu Tao, Joseph Duncan, Xiaocheng Jing, Amir Parayandeh, Xun Liu
  • Patent number: 11515783
    Abstract: A power supply system may include a target device and an adapter. The target device may include an adapter connection switch that receives adapter recognition information to form a connection with the adapter, a voltage detection unit that receives an output voltage from an adapter, and a voltage-change-requesting unit that outputs a voltage to request a voltage change based on information on the output voltage from the adapter. The adapter may include a device information recognition unit that receives the voltage to request a voltage change, and an output-voltage-changing unit that changes the output voltage based on the voltage to request a voltage change.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: November 29, 2022
    Assignee: CSIP CONSULTING LTD.
    Inventors: Young Seung Noh, Kwang Soo Choi, Bo Mi Lee, Chan Sung Jang
  • Patent number: 11509231
    Abstract: There is provided a method of generating a control strategy based on at least three switching states of a matrix converter. The at least three switching states are selected based on at least a predicted output current, associated with each switching state, and a desired output current. In particular, mathematical transformations of a desired output current as well as output currents associated with each of a plurality of switching states are used to identify appropriate switching states.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: November 22, 2022
    Assignee: ITT Manufacturing Enterprises LLC
    Inventors: Manjusha Vijayagopal, César Armando Silva Jiménez, Lee Empringham, Liliana Vittoria De Lillo
  • Patent number: 11509229
    Abstract: A resonant core power supply includes a core with excitation, resonant, and load windings where the resonant winding is coupled to a tank circuit and a controller manipulates the phase, amplitude and waveform of an excitation signal applied to the excitation winding.
    Type: Grant
    Filed: August 8, 2020
    Date of Patent: November 22, 2022
    Inventor: Patrick Carden
  • Patent number: 11507120
    Abstract: In a linear regulator system, a pass element has a control terminal, an input terminal and an output terminal. The pass element is configured to provide an output voltage at the output terminal based on: an input voltage at the input terminal; and a control signal at the control terminal. A dropout error amplifier has an error output and first and second inputs. The first input is coupled to the output terminal, and the error output is coupled to the control terminal. The dropout error amplifier is configured to provide a dropout control signal at the error output based on a comparison between: the output voltage at the first input; and a dropout reference voltage at the second input. The pass element is configured to regulate the output voltage at the dropout reference voltage, responsive to the dropout control signal.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: November 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Avinash Shreepathi Bhat
  • Patent number: 11509221
    Abstract: Direct current-direct current (DC-DC) converters including buck converters are described. These DC-DC converters may be configured to reduce oscillations that would otherwise arise in the output reference voltage due to ringing effects without significantly lengthening the duration of the transient period. These DC converters may leverage a feedback voltage generated by sensing the current flowing through the inductor of the buck converter. The feedback voltage may compared to a threshold, and the signal resulting from the comparison may be used to vary the reference voltage. The DC-DC converter may be operated in a “partial reset mode,” in which the voltage generated by sensing the inductor's current is reduced to a value greater than zero in response to the feedback voltage reaching the threshold. Reducing the sense voltage in this manner may reduce the duration of the transient period.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: November 22, 2022
    Assignee: MediaTek Inc.
    Inventors: Yueh-Min Chen, Yu-Hsin Lin
  • Patent number: 11502500
    Abstract: An electrical installation includes: a switchgear cabinet; a protective switch arranged in the switchgear cabinet; at least one optical triggering device which is operatively connected to the protective switch and for triggering or switching off the protective switch upon optical detection of an arc; a detection device for detecting an access or an access request to a secured area of the electrical installation by detecting a presence of the at least one optical triggering device in a danger area of the electrical installation; and an electronic circuit which is connected to the detection device and allows, and otherwise prevents, a triggering or switching off of the protective switch by the at least one optical triggering device upon detection of the access or the access request, when the at least one optical triggering device is present in the danger area.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: November 15, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventor: Georg Reuberger
  • Patent number: 11502615
    Abstract: A device determines a first current, of a first input phase of a power system, and a second current, of a second input phase of the power system. The device determines whether the first input phase and the second input phase are balanced based on the first current and the second current. When the first input phase and the second input phase are not balanced, the device selects the first input phase and an output phase of the power system. The device balances the first input phase and the second input phase by using the first input phase and the output phase.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 15, 2022
    Assignee: Juniper Networks, Inc.
    Inventor: David K. Owen
  • Patent number: 11493968
    Abstract: An apparatus is provided which generates a reverse bandgap reference using capacitive bias, which is applied to a single n-well diode. The capacitive bias allows for determining the current density precisely by pure timing control. An apparatus is also described for sensing temperature in which a forward-bias diode voltage can be sampled with a capacitor, and large current ratios are possible (e.g., ratio N greater than 1000). Duty cycle of a digital output of the sensor is used to determine the temperature sensed by the sensor.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: November 8, 2022
    Assignee: Intel Corporation
    Inventor: Matthias Eberlein
  • Patent number: 11496056
    Abstract: This disclosure describes systems, methods, and apparatus for driving a plurality of output circuits from a DC input signal using a resonant converter, the resonant converter comprising a switch network, a resonant tank, and a rectifier network, the resonant tank comprising: a resonant capacitor bridge coupled across the switch network; a plurality of branches, each branch comprising at least one series inductor coupled at a first end to the resonant capacitor bridge and at a second end to the rectifier network; and at least one parallel inductor; the rectifier network comprising one or more groups of transformers, each group coupled to one branch of the plurality of branches, and wherein the primary windings of the transformers of each group are coupled in parallel, and wherein the secondary windings are configured for coupling to an output load.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: November 8, 2022
    Assignee: Excelsys Technologies Ltd.
    Inventor: Richard Morrison
  • Patent number: 11489436
    Abstract: Apparatus and systems and articles of manufacture are disclosed to provide adaptive leakage compensation for powertrains. An example apparatus comprising a first current path including a first transistor and a second transistor; a second current path including a third transistor and a fourth transistor; and a current mirror including a fifth transistor and a sixth transistor, wherein a first ratio exists between the first transistor and the third transistor, a second ratio exists between the second transistor and the fourth transistor, and a third ratio exists between the fifth transistor and the sixth transistor, the third ratio greater than or equal to the second ratio, the second ratio greater than or equal to the first ratio.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 1, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Markus Georg Rommel, Konrad Wagensohner, Rebecca Grancaric, Michael Uwe Schlenker
  • Patent number: 11489441
    Abstract: Reference voltage generation circuits and related methods are disclosed. An example reference voltage generation circuit includes a voltage generating circuit including an enhancement mode (E-mode) gallium nitride (GaN) transistor, the voltage generating circuit to, in response to a first clock signal having a first phase, generate a first voltage associated with the E-mode GaN transistor, and, in response to a second clock signal having a second phase different from the first phase, generate a second voltage associated with the E-mode GaN transistor, and a switching capacitor circuit coupled to the voltage generating circuit, the switching capacitor circuit to generate a reference voltage based on a difference between the first voltage and the second voltage.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: November 1, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Maik Peter Kaufmann, Michael Lueders, Bernhard Wicht
  • Patent number: 11489334
    Abstract: The present disclosure relates to an earth leakage breaker having a leakage current limiting function, and the earth leakage breaker is provided to implement leakage current limiting parts at both ends of an earth leakage breaker part so that both an input terminal and an output terminal are each provided with the leakage current limiting function to increase leakage current limiting efficiency.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: November 1, 2022
    Assignee: VISION TECH. INC
    Inventor: Ho Seok Lee
  • Patent number: 11474549
    Abstract: Disclosed is a semiconductor integrated circuit for a regulator, including: a voltage control transistor connected between a voltage input terminal to which a DC voltage is input and an output terminal; a control circuit that controls the voltage control transistor according to a feedback voltage of an output; a first transistor which is provided in parallel with the voltage control transistor and to which an electric current in a proportional reduction from an electric current flowing to the voltage control transistor flows; a first comparison circuit that determines which of the electric current flowing to the first transistor and a predetermined current value is larger; and a first output terminal for outputting the determination result. An output of the first comparison circuit is inverted in response to the flowing to the first transistor of the electric current smaller than a preset rotation lock detection current value.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: October 18, 2022
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Yoichi Takano, Shinichiro Maki
  • Patent number: 11476147
    Abstract: A wafer holding table includes a ceramic electrostatic chuck, a metal cooling plate, a resin layer having predetermined thermal resistance, and a stress relaxation layer having lower Young's modulus than the resin layer. The resin layer and the stress relaxation layer are disposed between the electrostatic chuck and the cooling plate. The resin layer is disposed closer to the electrostatic chuck, and the stress relaxation layer is disposed closer to the cooling plate. The resin layer has a multilayer structure including a plurality of resin sheets laminated one on another. The resin layer is thinner than a comparative sample with a single-layer structure made of a material identical to a material of the resin sheet and having thermal resistance identical to thermal resistance of the resin layer.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 18, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Takuya Yanoh, Kengo Torii
  • Patent number: 11474548
    Abstract: Embodiments relate to digital low-dropout (DLDO) with fast feedback and optimized frequency response. Certain embodiments may relate more particularly to ferroelectric memory circuit configurations. For example, a low dropout regulator may include a first circuit path configured to regulate an input voltage to an output voltage at a load, wherein the first path comprises a first transistor. The apparatus may also include a second circuit path configured to feed back an error signal based on the input voltage and the output voltage, wherein the second circuit path comprises an error amplifier.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 18, 2022
    Assignee: WUXI PETABYTE TECHNOLOGIES CO, LTD.
    Inventor: Feng Pan