Patents Examined by Ivan Laboy
  • Patent number: 11056971
    Abstract: A DC voltage step-down converter, includes at least one first resistive element in series with a first switch between a first terminal and a second terminal of application of a first DC voltage; and a capacitive element between a third terminal and a fourth terminal for supplying a second DC voltage smaller than the first one, the node between said first resistive element and the first switch being coupled by a diode to said third terminal, said first switch being turned on when the second voltage is greater than a reference voltage of the second voltage.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: July 6, 2021
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Dominique Bergogne
  • Patent number: 11056298
    Abstract: An earthing switch circuit is provided and is connected to a direct current (DC) link including a positive terminal and a negative terminal having capacitance or energy storage capability. The earthing switch circuit includes a dynamic braking circuit having a single or plurality of dynamic braking (DB) switches, and at least one dynamic braking (DB) resistor disposed between the plurality of DB switches, and an earthing switch connected between the DB circuit and ground. The at least one DB resistor dissipates energy thermally when performing a dynamic braking operation and simultaneously decreases in-rush current for the earthing switch circuit upon closure of the earthing switch.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 6, 2021
    Assignee: GE Energy Power Conversion Technology Limited
    Inventor: Zane Taylor Miller
  • Patent number: 11031931
    Abstract: A protective device for protection of a semiconductor switch against overvoltages during a deactivation process. A compensation signal is provided at an input of a driver stage for a semiconductor switch to be deactivated if the voltage at the output of the semiconductor switch exceeds a specified threshold, and simultaneously a request to open the semiconductor switch is detected at an input of the driver stage for the semiconductor switch. The compensation signal is limited to a specified duration. On the basis of the compensation signal provided in the aforementioned manner, the driver stage for the semiconductor switch partly controls the semiconductor switch in order to prevent an excessively quick opening of the semiconductor switch.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 8, 2021
    Assignee: ROBERT BOSCH GMBH
    Inventors: Matthias Heil, Peter Sinn, Sebastian Laich, Tobias Richter
  • Patent number: 11024589
    Abstract: Distributions of on-chip inductors for monolithic voltage regulation are described. On-chip voltage regulation may be provided by integrated voltage regulators (IVRs), such as a buck converter with integrated inductors. On-chip inductors may be placed to ensure optimal voltage regulation for high power density applications. With this technology, integrated circuits may have many independent voltage domains for fine-grained dynamic voltage and frequency scaling that allows for higher overall power efficiency for the system.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 1, 2021
    Assignee: Oracle International Corporation
    Inventors: Michael Henry Soltau Dayringer, Anatoly Yakovlev, Ji Eun Jang, Hesam Fathi Moghadam, David Hopkins
  • Patent number: 11018498
    Abstract: An eMarker device is used in a cable electrically connected between a first port and a second port, wherein the cable includes a configuration channel communication wire. The eMarker device comprises: a first eMarker disposed near the first port and including a first active protection module coupled to the configuration channel communication wire, wherein the first eMarker is electrically connected to a first power pin of the first port and a second power pin of the second port; and a second eMarker disposed near the second port and including a second active protection module coupled to the configuration channel communication wire, wherein either of the first active protection module and the second active protection module changes an electric characteristic of the configuration channel communication wire to have the first port detect a disconnecting status of the second port when a specified event happens.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: May 25, 2021
    Assignee: VIA LABS, INC.
    Inventors: Feng-Kuan Su, Yu-Lung Lin, Yi-Te Chen
  • Patent number: 11016518
    Abstract: A voltage subtracter includes a first charge storage device and a second charge storage device. The first charge storage device receives a first voltage and a second voltage during a first time period, and storages a first difference voltage between the first voltage and the second voltage. The second charge storage device receives a reference ground voltage and the first voltage during a second time period, and storages a second difference voltage between the reference ground voltage and the first voltage. The first charge storage device and the second charge storage device are coupled to an output end during a second time period, and a charge sharing operation is operatedon the first charge storage device and the second charge storage device to generate an output voltage on the output end.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: May 25, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Yih-Shan Yang
  • Patent number: 10998813
    Abstract: A modular multilevel converter (MMC) includes multiple converter arms, each converter arm having: N submodules connected to each other in series, N being an integer equal to or greater than 2; and a circuit opening unit connected to the N submodules in series to open a circuit of the converter arm, wherein the N submodules has n submodules including full-bridge circuits and N?n submodules including half-bridge circuits, n being less than N.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 4, 2021
    Assignees: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Hee Jin Kim, Dong Su Lee, Kyeon Hur, Jae Sik Kang, Sang Min Kim, Jong Seo Na
  • Patent number: 10958176
    Abstract: Example embodiments of the systems and methods of CCM primary-side regulation disclosed herein subtract an estimate of the secondary IR drop from each output voltage sample. This allows a fixed sample instant to be set (with regard to the beginning of the off or flyback interval), and removes the need to hunt for or adjust to an optimum sample instant, or one with minimum IR drop error. The estimate of the IR drop may be adjusted on a cycle-by-cycle basis, based on the commanded primary peak current, knowing that the peak secondary current will be directly proportional by the turns ratio of the transformer. For improved accuracy, an adjustment may be made for the decay of secondary current during the delay to the sample instant, if the inductance value is known.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: March 23, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Andrew Bernard Keogh, Joseph Michael Leisten, William James Long
  • Patent number: 10958060
    Abstract: The photovoltaic installation being intended to supply an electric current (i), the method comprises the steps of measuring (e0) values representative of the electric current (i) supplied by the photovoltaic installation; adjusting (e2) a variable current jump threshold (s(ti)) according to measured values; detecting (e3) a current jump with an amplitude greater than a current jump threshold adjusted according to values measured before the jump; and detecting (e5) an electric arc based on the detection of a current jump.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 23, 2021
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SOCOMEC
    Inventors: Nicolas Chaintreuil, Stéphane Siat, Christian Kern
  • Patent number: 10938188
    Abstract: An ion wind generating device includes a high voltage power supply, a capacitor connected in parallel to the high voltage power supply, a first metal cone connected in series to the high voltage power supply, a ground plate disposed on the same axis as the first metal cone, a starter motor, and a second metal cone disposed on a connecting shaft. The starter motor includes a rotating shaft and a connecting shaft perpendicular to the rotating shaft. After second metal cone moves to be located between first cone and the ground plate, the starter motor stops rotating. The high voltage power supply charges the capacitor with the high voltage power, and the capacitor discharges the first metal cone. When the second metal cone is located between the first metal cone and the ground plate, the first metal cone causes the second metal cone to discharge to generate an ionic wind.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: March 2, 2021
    Inventors: Yu-Hsuan Lin, Chung-Yi Wang
  • Patent number: 10924009
    Abstract: A method includes converting an input signal into an output signal in response to a modulation signal, generating a timeout signal in response to the modulation signal, generating a comparison signal according to the output signal, determining whether the comparison signal is equal to or greater than a sense signal, determining whether the timeout signal has a first logic value, and causing the modulation signal to have the first logic value when the comparison signal is equal to or greater than the sense signal and the timeout signal has the first logic value. A switching power supply circuit includes a power converter, a timer circuit generating the timeout signal, and a controller causing the modulation signal to have the first logic value when the comparison signal is equal to or greater than the sense signal and the timeout signal has the first logic value.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: February 16, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Gang Chen, Rong-Shyang Ou
  • Patent number: 10910992
    Abstract: A photovoltaic installation comprising at least one photovoltaic module (1) and an electromechanical unit capable of producing a non-stray electric arc of a duration less than or equal to a given arc-quenching duration (x) when contacts of the electromechanical unit are opened.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: February 2, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Nicolas Chaintreuil, Stéphane Siat
  • Patent number: 10903656
    Abstract: A system comprises a first five-level inverter connected between a dc power source and an ac grid, a second five-level inverter connected between the dc power source and the ac grid and a third five-level inverter connected between the dc power source and the ac grid, wherein each five-level inverter comprises a first boost apparatus and a second boost apparatus.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: January 26, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Dianbo Fu, Bo He, Quan Li
  • Patent number: 10903749
    Abstract: The flyback converter generally has a capacitive divider operatively connectable to a voltage source for receiving an input voltage, the capacitive divider having a plurality of capacitive devices connected in series from one another; a transformer having a plurality of primary windings inductively coupled to at least one secondary winding, each one of the primary windings of the transformer being connected in parallel to a corresponding one of the capacitive devices of the capacitive divider via a switching device, each of the at least one secondary winding being connected to a forwardly biased and capacitive circuit connectable to an output load; and a controller connected to each one of the switching devices for operating the flyback converter to power the output load with the voltage source.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: January 26, 2021
    Assignee: Appulse Power Inc.
    Inventors: Sheikh Mohammad Ahsanuzzaman, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Aleksandar Prodic
  • Patent number: 10897203
    Abstract: A buck converter may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 19, 2021
    Assignee: AMBIQ MICRO, INC.
    Inventors: Ivan Bogue, Yousof Mortazavi
  • Patent number: 10896836
    Abstract: An electrostatic chuck is provided and has a holding surface for holding a wafer with a tape attached to one side of the wafer where the tape is in contact with the holding surface. The electrostatic chuck includes a disk-shaped member having a plurality of fine holes communicating with a vacuum source, where the fine holes are exposed to the holding surface. The disk-shaped member also includes a plurality of asperities formed on the holding surface and connected to the fine holes, and an electrode embedded in the disk-shaped member. The vacuum source is operated to produce a vacuum on the holding surface through the fine holes and thereby hold the wafer through the tape on the holding surface under suction, where the asperities formed on the holding surface function as a suction passage communicating with the fine holes.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: January 19, 2021
    Assignee: DISCO CORPORATION
    Inventors: Kenta Chito, Hidekazu Iida, Tomohiro Yamada, Yoshiteru Nishida, Hiroyuki Takahashi, Ryoko Fujiya, Susumu Yokoo
  • Patent number: 10879793
    Abstract: System and method are provided for regulating a power converter. The system includes a signal processing component configured to receive a first input signal and a second input signal, process information associated with the first input signal and the second input signal, and output a drive signal to a switch based on at least information associated with the first input signal and the second input signal. The first input signal is associated with at least a feedback signal related to an output voltage of the power converter. The second input signal is associated with at least a primary current flowing through a primary winding of the power converter. The signal processing component is further configured to change a peak value of the primary current within a first predetermined range, and change the switching frequency of the power converter within a second predetermined range.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: December 29, 2020
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Yuan Lin, Lieyi Fang
  • Patent number: 10848050
    Abstract: A power system includes at least one power unit, and each power unit has a direct current power source comprising at least two photovoltaic modules connected in series, each module having a positive and a negative output terminal, and a distributed inverter consisting of and an associated transistor switches connected to either the positive or negative output terminal of the at least two photovoltaic modules, and an alternating current power output. A power system has at least two power units, and each power unit has a direct current power source of at least one photovoltaic modules, and at least two transistor switches, wherein each power unit produces one polarity of voltage, used for generating alternating current power.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 24, 2020
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventor: Todd Karin
  • Patent number: 10819226
    Abstract: System and method are provided for regulating a power converter. The system includes a signal processing component configured to receive a first input signal and a second input signal, process information associated with the first input signal and the second input signal, and output a drive signal to a switch based on at least information associated with the first input signal and the second input signal. The first input signal is associated with at least a feedback signal related to an output voltage of the power converter. The second input signal is associated with at least a primary current flowing through a primary winding of the power converter. The signal processing component is further configured to change a peak value of the primary current within a first predetermined range, and change the switching frequency of the power converter within a second predetermined range.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 27, 2020
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Yuan Lin, Lieyi Fang
  • Patent number: 10819227
    Abstract: An N-phase power converter has N phases with outputs connected in parallel and outputs connected in parallel. The converter comprises: N switch units, wherein each phase of the N-phase power converter comprises one of the N switch units; and an integrated inductor unit, comprising M inductor subunits, wherein M is a natural number greater than or equal to 2, each inductor subunit comprises i inductors, i is a natural number greater than or equal to 2, N>M×i or N=M×i, M×i of the inductors in the integrated inductor unit are respectively coupled to M×i of the N switch units, wherein: the i inductors of each of the inductor subunit are inverse-coupled to each other, the coupling coefficient between the M inductor subunits is less than the coupling coefficient between the i inductors in each of the inductor subunits.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 27, 2020
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Jinping Zhou, Min Zhou, Zhangnan Xin, Xinjian Zou