Patents Examined by Jeffery S Zweizig
  • Patent number: 11190099
    Abstract: A voltage conversion device that is operable as a switched capacitor, includes switches, a boost circuit that raises an input voltage to the voltage conversion device to a voltage that is higher than a predetermined reference voltage, and a control unit that controls states of the switches based on a voltage output from the boost circuit.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takuya Sakamaki
  • Patent number: 11188108
    Abstract: A data acquisition system may include an input for receiving an input signal for the data acquisition system, a plurality of data paths including a first data path and a second data path, and a signal estimator configured to determine a magnitude of the input signal using estimation of the input signal and dynamically deactivate one of the first and second data paths based on the magnitude of the input signal.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: November 30, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: Sunder Kidambi, Mohit Sood, Roderick D. Holley, John C. Tucker
  • Patent number: 11190098
    Abstract: The present application discloses a voltage booster circuit and a related circuit, chip and wearable device. The voltage booster circuit has an output terminal, which provides an output voltage and a load current. The voltage booster circuit includes: a first charge pump, which provides a first bias current; a second charge pump, which provides the load current; an output voltage fixing circuit, which draws the first bias current from the first charge pump to the output terminal, wherein the output voltage fixing circuit fixes a first charge pump voltage of the first charge pump by fixing the first bias current and further fixes the output voltage based on the fixed first charge pump voltage; and a load current generation circuit, which draws the load current from the second charge pump to the output terminal based on a second charge pump voltage of the second charge pump.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: November 30, 2021
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventor: Wen-Chi Wang
  • Patent number: 11177803
    Abstract: A power-on-reset (POR) circuit includes an NFET branch and a PFET branch. The NFET branch includes: an n-channel field effect transistor (NFET) having a first threshold voltage; and a first quiescent bias current source coupled between a supply terminal and the NFET. The PFET branch includes: a p-channel field effect transistor (PFET) having a second threshold voltage; and a second quiescent bias current source coupled between a ground terminal and the PFET. The POR circuit is configured to provide a POR signal at an output terminal based on: the first threshold voltage or the second threshold voltage, whichever is larger; and a voltage margin. The output terminal is coupled between the PFET branch and the second quiescent bias current source.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 16, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Divya Kaur, Rajat Chauhan
  • Patent number: 11171564
    Abstract: A power provider includes: a first power source configured to receive an input voltage and to provide a first power voltage to a first output terminal; a low voltage detection circuit configured to provide a low voltage detection signal of an enable level in response to the input voltage being less than a reference low voltage, and to provide the low voltage detection signal of a disable level in response to the input voltage being greater than the reference low voltage; a first soft start circuit configured to connect the first input terminal to the first output terminal in response to a first control signal for the first power source being changed from a disable level to an enable level; and a first boost converter configured to convert the input voltage to provide the first power voltage greater than the input voltage to the first output terminal.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kwang Hun Kang
  • Patent number: 11150687
    Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 19, 2021
    Assignee: Astera Labs, Inc.
    Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi
  • Patent number: 11146163
    Abstract: The present disclosure includes a drive circuit (2-4) for switching a switching element, and a variable capacity circuit (6A), connected between a control terminal (G) of the switching element and the drive circuit (2-4), capable of switching at least between a first capacity value and a second capacity value different from the first capacity value, and controls a capacity value between the control terminal and the drive circuit via the variable capacity circuit.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: October 12, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Taku Shimomura, Tetsuya Hayashi, Akinori Okubo, Daiki Sato, Yuichi Iwasaki
  • Patent number: 11137786
    Abstract: An electronic device includes a starting circuit configured to compare a value representative of the power supply voltage with a threshold, wherein the circuit includes a generator of a current proportional to temperature.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: October 5, 2021
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Jimmy Fort, Maud Pierrel, Nicolas Borrel, Thierry Soude
  • Patent number: 11133741
    Abstract: There is provided a power supply device 100 for switching power to an output line 150 between a first power supply 120 and a parallel second power supply 122. The power supply device 100 comprises: a first converter 130 connected to the first power supply 120 and configured to output a first voltage in a first predetermined range; and a second converter 132 connected to the second power supply 122 and configured to output a second voltage in a second predetermined range. The outputs of the first and second converters 130, 132 are connected together on the output line 150, and the first and second converters 130, 132 are arranged to maintain a voltage on the output line 150 within a third predetermined range.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: September 28, 2021
    Assignee: UTC FIRE & SECURITY EMEA BVBA
    Inventor: Witold Golunski
  • Patent number: 11128292
    Abstract: A soft-start control circuit is provided. The soft-start control circuit includes a load switch, a driving unit and a filtering unit. The first terminal of the load switch is configured to receive an input voltage. The control terminal of the load switch is configured to receive a switching signal and perform switching between on and off according to the switching signal, thereby performing a soft-start operation. The second terminal of the load switch is configured to provide a switched voltage. The driving unit is configured to provide a switching signal according to a control signal and release a parasitic charge stored in the load switch when the load switch is turned off. The filtering unit is configured to convert the switched voltage into an output voltage.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: September 21, 2021
    Assignee: Chicony Power Technology Co., Ltd.
    Inventor: Wing Kai Chow
  • Patent number: 11128219
    Abstract: A control circuit for at least one voltage generator includes a first transistor, a first controller, a second transistor, a second controller and a communicator. The first transistor is coupled to a first output terminal of the at least one voltage generator. The first controller is coupled to a control terminal of the first transistor. The second transistor is coupled to a second output terminal of the at least one voltage generator. The second controller is coupled to a control terminal of the second transistor. The communicator, coupled between the first controller and the second controller, is configured to selectively control the first controller and the second controller to communicate with each other or not according to the at least one voltage generator.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: September 21, 2021
    Assignee: NOVATEK Microelectronics Corp.
    Inventor: Chun-Yu Hsieh
  • Patent number: 11128284
    Abstract: A control circuit for controlling signal rising time and falling time is provided. The circuit includes multiple data flip-flops, multiple controllable delay circuits, and multiple current source circuits. The data flip-flops are triggered by clock signals to output a plurality of data signals. The controllable delay circuits delay the data signals, based on corresponding delay amounts, to generate a plurality of activation signals. Each of the current source circuits determines whether to output a unit current to a signal output terminal according to a level of one of the activation signals. Rising or falling time for an output signal of the signal output terminal to rise or fall to a predetermined level is determined according to a cycle time length of the clock signal and the delay amount of each of the controllable delay circuits.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: September 21, 2021
    Assignee: ALi Corporation
    Inventor: Chih-Yuan Hsu
  • Patent number: 11109623
    Abstract: A driver circuit for electronic cigarettes includes an MCU, a power source, a first sampling circuit, a second sampling circuit, and a buck-boost driver circuit electrically connected to the MCU, the boosting circuit and MCU are respectively electrically connected the power source. The buck-boost driver circuit comprises a first half bridge drive circuit and a second half bridge drive circuit respectively connected to the MCU. One end of the first sampling circuit is electrically connected to an input terminal of the first half bridge drive circuit, through which the power source supplies power to the first half bridge drive circuit; the other end of the first sampling circuit is electrically connected to the MCU; one end of the second sampling circuit is electrically connected to the output terminal of the second half bridge drive circuit, and the other end of the second sampling circuit is electrically connected to the MCU.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: September 7, 2021
    Assignee: Joyetech Europe Holding GmbH
    Inventor: Weihua Qiu
  • Patent number: 11112315
    Abstract: An apparatus for generating a temperature-dependent current. The apparatus includes an input current scaling circuit configured to generate a first current that varies with temperature in accordance with a first programmable slope, and a second current that varies with temperature in accordance with a second programmable slope; and a current temperature blending circuit configured to generate a third current based on the first current over a first temperature range and the second current over a second temperature range, wherein the first temperature range is different than the second temperature range.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: September 7, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Mohamed Abouzied, Ibrahim Ramez Chamas, Bhushan Shanti Asuri
  • Patent number: 11107778
    Abstract: Embodiments of an active shielding device and method for active shielding are disclosed.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 31, 2021
    Assignee: NXP B.V.
    Inventors: Siamak Delshadpour, Steven Daniel
  • Patent number: 11099595
    Abstract: A bandgap circuit includes a supply node as well as a first and second bipolar transistors having jointly coupled base terminal at a bandgap node providing a bandgap voltage. First and second current generators are coupled to the supply node and supply mirrored first and second currents, respectively, to first and second circuit nodes. A third circuit node is coupled to the first bipolar transistor via a first resistor and coupled to ground via a second resistor, respectively. The third circuit node is also coupled to the second bipolar transistor so that the second resistor is traversed by a current which is the sum of the currents through the bipolar transistors. A decoupling stage intermediate the current generators and the bipolar transistors includes first and second cascode decoupling transistors having jointly coupled control terminals receiving a bias voltage sensitive to the bandgap voltage.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: August 24, 2021
    Assignee: STMicroelectronics S.r.l.
    Inventors: Stefano Ramorini, Germano Nicollini
  • Patent number: 11099594
    Abstract: The disclosed bandgap circuit is configured to provide a temperature stable reference current and/or voltage that is also adjustable. The stability can be facilitated by an improved matching of current mirrors provided by a source degeneration topology. The source degeneration can reduce random mismatches without requiring increased size or complexity of the current mirrors and can facilitate operation of the current mirrors in a weak inversion condition, in which random mismatches may be most severe. Further, the source degeneration may be adjusted to adjust a level and/or a temperature coefficient of the generated reference current and/or voltage.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: August 24, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Moez Kanoun
  • Patent number: 11095202
    Abstract: A common-mode voltage cancellation (CMVC) circuit, is disclosed. The circuit includes a first set of coupled inductors, each having a primary winding defining a first polarity, and a secondary winding. The secondary windings are electrically coupled in series. Each primary winding receives a phase voltage having a common mode voltage component from a respective input line. The circuit includes a second set of coupled inductors comprising at least one primary winding and at least one secondary winding The at least one primary winding receives a second voltage from the series connected secondary windings of the first set of coupled inductors. Each at least one secondary winding is coupled in series with a respective input line such that the common mode voltage component received on input lines will be reduced at an output of the set of secondary windings.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: August 17, 2021
    Assignee: GE Aviation Systems LLC
    Inventors: Cong Li, Michael J. Schutten, Di Pan, Ren Xie
  • Patent number: 11081962
    Abstract: An apparatus comprises a plurality of voltage sources, one or more processors embedded with the plurality of voltage sources, and memory storing processor executable instructions that, when executed by the one or more processors, cause the apparatus to modify duty cycles of the voltage sources, and to modify timing for each phase of a multiphase cycle. In some cases, the apparatus: transfers, for each phase of the multiphase cycle, power from a different source of a plurality of sources to a load; determines, for each phase of the multiphase cycle, an input voltage associated with the transferred power, an output voltage associated with the transferred power, and current from the source associated with the transferred power; determines a duty cycle associated with the source; modifies duty cycles of the voltage sources; and modifies timing for each phase of the multiphase cycle.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: August 3, 2021
    Assignee: UPLIFT SOLAR CORP.
    Inventor: Eric Dupont Becnel
  • Patent number: 11061425
    Abstract: A voltage stabilizer receives a direct-current (DC) input voltage, and includes four resistors, two transistors, and a diode that cooperatively provide a stable DC output voltage. The voltage stabilizer is configured such that the diode does not directly receive the DC input voltage and does not conduct all the time, so as to reduce power consumption.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: July 13, 2021
    Assignee: AdvanOrigin Co., Ltd.
    Inventor: Te-Hua Liu