Patents Examined by Richard Tan
  • Patent number: 11362624
    Abstract: A varainductor includes a signal line over a substrate. The varainductor further includes a first ground plane over the substrate. The varainductor further includes a first floating plane over the substrate, wherein the first floating plane is between the first ground plane and the signal line, and the first floating plane is a same distance from the substrate as the first ground plane. The varainductor further includes a first transistor configured to selectively electrically connect the first ground plane to the first floating plane. The varainductor further includes a second transistor configured to selectively electrically connect the first ground plane to the first floating plane, wherein a gate of the first transistor is connected to a gate of the second transistor.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: June 14, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Hsuan Liu, Hsieh-Hung Hsieh, Chewn-Pu Jou, Fu-Lung Hsueh
  • Patent number: 11355955
    Abstract: A method of operating a power generation system, such as a fuel cell power generation system, includes providing a first electrical power up to a threshold amount of power to a load from at least one power module via a plurality of DC/DC converters and a DC power bus, determining whether electrical power from a utility is available, and providing a second electrical power from the at least one power module to a rectifier path via a plurality of DC/AC inverters in response to determining that the electrical power from the utility is available. The second electrical power includes electrical power generated by the at least one power module in excess of the threshold amount of electrical power.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: June 7, 2022
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: Carl Cottuli, Rajesh Gopinath
  • Patent number: 11349335
    Abstract: A power supplying device comprising a battery, a charging circuit and a DC-AC conversion circuit is provided. The charging circuit is electrically coupled to an AC power source and configured to charge the battery. The DC-AC conversion circuit is electrically coupled to the battery and configured to supply an AC output. When the power supplying device is powered on, both of the charging circuit and the DC-AC conversion circuit are enabled.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 31, 2022
    Assignee: CYBER POWER SYSTEMS, INC.
    Inventors: Lien-Hsun Ho, Shou-Ting Yeh, Jui-Hung Chou, Kai-Tsung Yang
  • Patent number: 11349307
    Abstract: A control unit for an active filter for reducing resonance in an electric system is provided. The electric system comprises a power source distributing an alternating current to an AC conductor connected to a power consuming unit for distributing the AC to the power consuming unit. The active filter comprises a DC power source and a DC conductor connecting the DC power source to the AC conductor. The control unit comprises: a voltage measurement unit adapter to create a voltage signal on the basis of a measured voltage; a computing unit adapted to compute, using a biquadratic filter, a first compensating current on the basis of the voltage signal for reducing resonance in the electric system and a switching system placed between the DC power source and the DC conductor for creating the calculated first compensating current.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: May 31, 2022
    Assignee: COMSYS AB
    Inventor: Jonas Persson
  • Patent number: 11349456
    Abstract: In described examples of an integrated circuit (IC), an oscillator includes Schmitt trigger delay cells connected in a ring topology. The Schmitt trigger delay cells have a high input threshold approximately equal to Vdd and a low input threshold approximately equal to Vss to increase delay through each cell. An output buffer receives a phase signal from an output terminal of one of the Schmitt trigger delay cells and converts a transition phase signal to a faster transition clock signal. The output buffer has control circuitry that generates non-overlapping control signals in response to the phase signal, to control an output stage to generate the fast transition clock signal while preventing short circuit current in the output stage.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: May 31, 2022
    Assignee: Texas Instruments Incorporated
    Inventor: Manikandan R R
  • Patent number: 11349306
    Abstract: A versatile intelligent fault diagnosis (IFD) method for a distribution grid integrating renewable energy resources is described. Advanced signal processing techniques extract useful features from recorded three-phase current signals, which are input to a multilayer perceptron neural networks (MLP-NN) to diagnose i.e., to detect, classify, identify the feeder branch, and locate the faults. Once a fault is detected, classified and located, a grid operator may adjust grid parameters or dispatch a technician to correct the fault. The IFD method is independent of load demand, renewable energy generation, and fault information (resistance and inception angle) uncertainties, as well as measurement noise.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: May 31, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Md Shafiullah, M. A. Abido
  • Patent number: 11336308
    Abstract: Disclosed is an electronic device. Other various embodiments as understood from the specification are also possible. The electronic device may include an antenna, a communication module including a transceiver, and a control circuit. The control circuit may be configured to radiate a first signal generated from the transceiver through the antenna, to obtain at least part of a second signal obtained by combining a forward signal delivered from the communication module to the antenna and a reverse signal reflected from the antenna, and to determine a reflection coefficient for the antenna based on at least part of the first signal and at least part of the second signal.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 17, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wonsub Lim, Seunghyun Oh, Hyoseok Na, Dongil Yang
  • Patent number: 11327459
    Abstract: An apparatus includes multiple circuit paths configured to generate multiple electrical signals to be used to communicate with multiple devices. Each of the circuit paths is configured to use electrical energy from a different one of multiple independent power supplies. The apparatus also includes an I/O terminal configured to be coupled to a common electrical conductor that is coupled to the multiple devices. The I/O terminal is configured to pass the electrical signals to the common electrical conductor. The apparatus is configured to use each of the electrical signals to one of: receive input data from one of the multiple devices or provide output data to one of the multiple devices.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 10, 2022
    Assignee: Honeywell International Inc.
    Inventors: Vamsee Krishna Aradhyula, Nagaraja Sundaresh, Shripad Kumar Pande, Ram Mohan Anugu
  • Patent number: 11320791
    Abstract: The invention is related to a novel atomic clock developed by taking into basis Quantum mechanics and the spin-spin status of the electrodes that have been trapped. The disadvantages such as radioactivity perceived in atomic clocks, half life and shelf life are prevented by means of the invention.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 3, 2022
    Inventor: Umut Keten
  • Patent number: 11322973
    Abstract: A power device and an operating method thereof are provided. The power device comprises a communication interface and a control circuit. The control circuit is configured to connect a network through the communication interface, and to execute a web server program to provide a web-based user interface. The web-based user interface is configured to provide a plurality of web pages, and the web pages are configured to present a plurality of different related information of the power device. The web-based user interface is further configured to provide a virtual button. When the control circuit determines that the virtual button is clicked once, the control circuit collects the related information from different addresses corresponding to the related information in a memory space, and packages the collected related information as a single file, so as to perform a follow-up process on this single file.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: May 3, 2022
    Assignee: CYBER POWER SYSTEMS, INC.
    Inventors: Hung-Chun Chien, Yung-Hao Peng, Yu-Chen Kuo, Shang-Hsiu Yang
  • Patent number: 11316347
    Abstract: A photovoltaic power system includes a DC/AC inverter circuit, N DC/DC converter circuits that are located at a previous stage of the DC/AC inverter circuit and that are respectively connected to photovoltaic strings, and a controller connected to the DC/AC inverter circuit and the N DC/DC converter circuits. The controller is configured to: perform MPPT control on n DC/DC converter circuits, and perform CPG control on (N?n) DC/DC converter circuits. In the two control manners, a fast and accurate power reserve or limit of a photovoltaic string inverter with any illumination intensity and ambient temperature can be implemented, and fluctuation of a DC bus voltage and AC output power of the photovoltaic string inverter can be eliminated. Control on a virtual synchronous generator of the photovoltaic string inverter is implemented, and a lifespan of the photovoltaic string inverter is prolonged, without a need to add an energy storage element.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 26, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Rongliang Shi, Kai Xin, Yunfeng Liu
  • Patent number: 11309733
    Abstract: An uninterruptible portable power bank, including: a portable power bank, the PWM charge and discharge control circuit is coupled to the AC to DC transformer circuit, the battery and the protection circuit module and the DC to AC transformer circuit, the automatic power switch is coupled to the first AC power transmission interface, the AC power output interface and the DC to the AC transformer circuit, the AC to DC transformer circuit is coupled to the first AC power transmission interface, the automatic power switch is connected to the first AC power transmission interface and the AC power output interface while connected with the wall power, and turn to connect to the DC to AC transformer circuit and AC power output interface while the wall power is cut off; and an AC power transmission cable having a second AC power transmission interface and a second wall power input interface.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: April 19, 2022
    Assignee: Samlife Technology Co., Ltd.
    Inventor: Fu-I Yang
  • Patent number: 11309899
    Abstract: The application discloses a time-to-digital conversion circuit (100) including a first oscillator (110), a second oscillator (120), a first counting circuit (130), a second counting circuit (140), a first conversion circuit (150) and a processing circuit (160). The first oscillator is activated by a first signal and includes oscillating units having a first delay amount, wherein the first counting circuit is configured to count a number of times that the first tail end output signal of the first oscillator changes and store the same as a first counting result; the second counting circuit counts a number of oscillating units with an output change, other than the first tail end oscillating unit and stores the same as a second counting result; the first conversion circuit generates a first conversion signal according to the first counting result and the second counting result; the processing circuit generates the output signal at least according to the first conversion signal.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 19, 2022
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventor: Yen-Yin Huang
  • Patent number: 11300934
    Abstract: Methods and apparatus for automatic, dynamically adjusted operation of load-sharing gensets. An example of such operation may include determining an updated genset-removal load based on a genset-addition load, an initial genset-removal load, a human-selected one of predetermined levels of dynamism, and the number of operating ones of the gensets. An operating genset is halted in response to the actual loads of each operating genset simultaneously being at or below the updated genset-removal load. In another example, while two or more gensets are operating, an updated genset-removal load is determined based on the genset-addition load and a hysteresis setpoint, and an operating genset is halted in response to actual loads of each operating genset simultaneously being at or below the updated genset-removal load.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 12, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Ramakrishna Madhireddy
  • Patent number: 11303123
    Abstract: Systems and methods are provided for continuously and automatically monitoring, controlling, and combining shore-based AC power sources for waterborne vessels while the vessels are at dock or in port. The systems can allow a one or more shore AC power AC to power the entire vessel, and automatically and safely join multiple power sources to power a single higher-current-capacity electrical distribution bus on the vessel. The systems can automatically monitor and evaluate the characteristics of multiple shore power sources to determine when it is possible to safely combine the sources. Also, the systems can recognize the disconnection/disablement of a shore power source, and can un-combine that power source from the other power sources feeding the system. The systems can automatically evaluate the phase, current and voltage of multiple AC sources, and combine the sources only after a specific set of conditions are satisfied.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 12, 2022
    Assignee: Nauti-Tech Inc.
    Inventor: Jack Brunier
  • Patent number: 11303148
    Abstract: A water heater can include a housing and a heating system disposed within the housing, where the heating system is configured to heat a fluid. The water heater can also include a switch coupled to the heating system, where the switch operates between a first position during normal operations and a second position during an outage. The water heater can further include a primary power source coupled to the switch, where the primary power source is configured to provide primary power to the heating system through the switch during the normal operations. The water heater can also include an uninterruptible power supply (UPS) coupled to the switch, where the UPS is configured to provide reserve power to the heating system through the switch during the outage, and where the UPS is integrated with the housing.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 12, 2022
    Assignee: Rheem Manufacturing Company
    Inventors: Troy Trant, Robert D. Brown
  • Patent number: 11295253
    Abstract: Methods and apparatus for asset management are provided. The apparatus, for example, a processor to receive an input including intervention information for a first plurality of assets in a first circuit and for a second plurality of assets in a second circuit in a network; create a first plurality of bundling strategies for interventions to be performed for the first plurality of assets in the first circuit and create a second plurality of bundling strategies for interventions to be performed for the second plurality of assets in the second circuit; calculate for a created first plurality of bundling strategies and a created second plurality of bundling strategies at least one of an outage duration and cost associated with the interventions; and create a schedule for performing interventions for the first plurality of assets in the first circuit and the second plurality of assets in the second circuit.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: April 5, 2022
    Assignee: Copperleaf Technologies Inc.
    Inventors: Stanley Thomas Coleman, John Klippenstein, Alejandro Erickson, James Burberry
  • Patent number: 11289905
    Abstract: Disclosed in the present invention is a voltage and current control method for a direct-current transmission system. The method comprises: calculating a DC voltage reference value of a voltage source converter of a DC voltage control end, on the basis whether a direct-current voltage end of a direct-current pole of a direct-current transmission system substantially controls a direct-current voltage; using ½ of the calculated direct-current voltage reference value of the voltage source converter as a bridge arm voltage direct-current bias, calculating a difference between the direct-current voltage reference value of the voltage source converter and a measured direct-current voltage value, and inputting the difference into a direct-current voltage control outer loop of the voltage source converter to perform closed-loop control, so as to control the direct-current voltage or the direct current of the direct-current pole.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 29, 2022
    Assignees: NR ELECTRIC CO., LTD., NR ENGINEERING CO., LTD.
    Inventors: Jiang Lu, Yu Lu, Yunlong Dong, Yongping Wang, Jie Tian, Nannan Wang, Wenqiang Zhao, Zhaoqing Hu, Ke Wang, Jianmin Xiao
  • Patent number: 11290081
    Abstract: A resonator element includes a quartz crystal substrate including a supporting section, a resonating section, and a coupling section coupling the supporting section and the resonating section and having thickness smaller than the thickness of the supporting section, the supporting section including a first principal plane and a first side surface coupling the first principal plane and the coupling section, a first excitation electrode disposed in the resonating section, a second excitation electrode disposed in the resonating section and overlapping the first excitation electrode via the resonating section, and first and second pad electrodes including portions disposed on the first principal plane, the first and second pad electrodes being electrically coupled to the first and second excitation electrodes.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 29, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Shinya Aoki, Byonhaku Yu, Atsushi Matsuo
  • Patent number: 11290057
    Abstract: Provided is an oscillation circuit including: a first current source circuit; a second current source circuit; a resistor between the output terminal of the first current source circuit and a second power source; a first capacitor; a second capacitor; a first comparator circuit having a first input terminal to which is a voltage across the resistor is applied as a reference voltage and a second input terminal to which a voltage of the first capacitor is applied; a second comparator circuit having a first input terminal to which is the reference voltage is applied and a second input terminal to which a voltage of the second capacitor is applied; an RS latch; a first and a second switches switching a destination, of an current supplied from the second current source circuit, selected from the first and the second capacitors.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: March 29, 2022
    Assignee: ABLIC INC.
    Inventor: Minoru Sano