Patents Assigned to LSI
  • Super CMOS devices on a microelectronics system
    Patent number: 9806072
    Abstract: This application is directed to a low cost IC solution that provides Super CMOS microelectronics macros. Hereinafter, SCMOS refers to Super CMOS and Schottky CMOS. SCMOS device solutions includes a niche circuit element, such as complementary low threshold Schottky barrier diode pairs (SBD) made by selected metal barrier contacts (Co, Ti, Ni or other metal atoms or compounds) to P- and N- Si beds of the CMOS transistors. A DTL like new circuit topology and designed wide contents of broad product libraries, which used the integrated SBD and transistors (BJT, CMOS, and Flash versions) as basic components.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: October 31, 2017
    Assignee: SCHOTTKY LSI, INC.
    Inventor: Augustine Wei-Chun Chang
  • Apparatus for controlling paralleled inverter
    Patent number: 9806631
    Abstract: An apparatus for controlling paralleled inverter is disclosed. In the apparatus for controlling paralleled inverter, one synchronization signal is shaped by at least two inverters to respectively transmit a voltage command and an operation command.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Jong Je Park
  • Apparatus for controlling grid-connected inverter
    Patent number: 9806638
    Abstract: An apparatus for controlling a grid-connected inverter is disclosed. The apparatus according to an exemplary embodiment of the present disclosure is configured to promote an increase in efficiency of grid-connected inverter system and to improve a current THD by generating a voltage command by changing an offset voltage in response to size of DC-link power voltage and size of apparent power.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventors: An No Yoo, Eun Sik Choi
  • Gate driver for driving inverter
    Patent number: 9806709
    Abstract: The present disclosure relates to a gate driver for driving an inverter. In one embodiment, a gate driver includes an IC module configured to generate the switching signal by using a PWM signal input from the outside, and a power supply managing part configured to apply an IC module driving voltage for drive of the IC module by using a switching element and a driver driving voltage for drive of the gate driver if the driver driving voltage is equal to or larger than a first reference voltage, and is further configured to stop the application of the IC module driving voltage if the driver driving voltage is equal to or lower than a second reference voltage.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Jae-Moon Lee, Chun-Suk Yang
  • System of controlling induction electric motor
    Patent number: 9806652
    Abstract: In some embodiments, a system of controlling an induction electric motor, includes a command voltage output unit for generating a command voltage for operating an inverter according to a command speed and outputting the generated command voltage to the inverter; a control unit for controlling the command voltage output unit such that the command voltage output to the inverter is compared with an operation limiting voltage and the command voltage is corrected to fall within the operation limiting voltage; and the inverter for controlling the induction electric motor depending on the corrected command voltage. Thus, it is possible to precisely control the induction electric motor even in a high speed operation region by regulating the magnitude of the command voltage applied to the induction electric motor by means of dynamic modulation strategies without the magnetic flux controller.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Joo-Young Moon, Hak-Jun Lee, Anno Yoo
  • Photovoltaic inverter
    Patent number: 9806632
    Abstract: A photovoltaic inverter includes: an input unit to connected to a first terminal and a second terminal to which a positive (+) polarity or a negative (?) polarity of a photovoltaic module are connected; a switching device configured to control the first terminal and the second terminal connected to the input unit according to pre-set polarities of an inverter unit; a booster unit configured to boost a voltage of the photovoltaic module delivered form the input unit through the switching device; a capacitor configured to charge the voltage boosted by the booster unit; and an inverter unit configured to convert the voltage charged in the capacitor into an alternating current (AC) and provide the converted AC voltage for an electric power system.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Dong Jin Yun
  • Energy storage system
    Patent number: 9806525
    Abstract: An energy storage system is provided. The energy storage system including a battery includes a battery management system (BMS) monitoring a battery state of the battery and controlling charging and discharging operations of the battery; and a power condition system (PCS) determining a desired control value of the battery, obtaining power market adjustment rule information on a power market including the energy storage system, calculating a deadband value for the desired control value based on the obtained power market adjustment rule information, and controlling the BMS controlling the charging and discharging operations of the battery based on the calculated deadband value for the desired control value and the monitored battery state.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Jae Seong Shim
  • Transformer core
    Patent number: 9805852
    Abstract: A transformer core includes: a plurality of core steel laminations; at least one guide slot on a surface of steel sheet forming each of the plurality of core steel laminations; and at least one shape retainer attached to the at least one guide slot joining a plurality of the steel sheets together.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Seungwook Lee
  • Energy management system
    Patent number: 9804212
    Abstract: An energy management system controlling energy flowing into or out of a battery is provided. The energy management system includes a data receiving unit receiving load data and energy data; a total load amount calculating unit calculating the total amount of power consumption by using the received load data; an energy generation amount calculating unit calculating the total amount of power generation by using the received energy data; a comparator comparing the calculated total amount of the power consumption with the calculated total amount of the power generation; and a switch connecting the battery to a power supply according to a comparison result.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Young Min Kang, Young Gyu Yu
  • Locking device for operating mechanism of gas insulated switchgear
    Patent number: 9805882
    Abstract: In some embodiments, a locking device for an operating mechanism of a gas insulated switchgear, capable of locking or unlocking operations of an operating mechanism of disconnecting switches and earthing switches of the gas insulated switchgear.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 31, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Seongho Jeon
  • DRAW IN AND OUT TYPE CIRCUIT BREAKER
    Publication number: 20170309414
    Abstract: Disclosed is a draw in and out type circuit breaker. In the draw in and out type circuit breaker, at least one guide slot is provided in a slide plate, and thus, a clip moves to a test position, a connected position, or a disconnected position with being fitted into the at least one guide slot, thereby enabling a position of the clip to be easily controlled.
    Type: Application
    Filed: October 26, 2016
    Publication date: October 26, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Sangchul LEE
  • Method for controlling inverter
    Patent number: 9798296
    Abstract: A method for controlling an inverter is provided, the method including, setting, as a first reference, a pressure data returned from the pressure sensor when a pre-PID ends, updating the first reference that is increased by a predetermined step to a second reference, determining an output frequency of the inverter by performing a PID control using the second reference, and determining an output frequency of the inverter by performing the PID using a third reference set up by the user when the second reference or feedback pressure data is equal to a set value.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: October 24, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Hyo Jin Kim
  • Downloader gender case
    Patent number: 9800006
    Abstract: A downloader gender case is disclosed. The download gender case according to the present invention comprises: a fixed cover for fixing a substrate, configured to surround a part of the substrate and the periphery of a header and formed with a first through hole through which the header is opened; a slide cover disposed on the outer side of the fixed cover, configured to surround the other part of the substrate and the periphery of a pin header and formed with a second through hole through which the pin header is opened; and an opening and closing portion coupled with the slide cover to open and close the second through hole, the slide cover being capable of sliding in a direction toward the header or the pin header.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: October 24, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Kyung-Min Kim
  • Bypass switch for HVDC transmission
    Patent number: 9799473
    Abstract: A bypass switch for high voltage direct current (HVDC) transmission is provided. The bypass switch includes a housing, a fixed contactor disposed in the housing and electrically connected to a first portion of a HVDC transmission circuit, a movable contactor movably disposed in the housing at a position spaced apart from the fixed contactor and electrically connected to a second portion of the HVDC transmission circuit, an insulation member coupled to a side of the movable contactor, an explosive actuator disposed at one side of the insulation member and exploded according to an electrical signal, and a piston mechanism which is moved by the force of gas generated due to the explosion of the explosive actuator, applies force to move the insulation member, and allows the fixed contactor and movable contactor to be electrically connected to each other.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: October 24, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Teag Sun Jung
  • Apparatus for controlling inverter
    Patent number: 9800189
    Abstract: An inverter controller is provided. The controller according to an exemplary embodiment of the present disclosure generates a compensation voltage to compensate an inverter command voltage using motor torque current and motor information, and apply the compensation voltage to the command voltage.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: October 24, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Junghan Kim
  • Method for controlling parallel-connected inverters
    Patent number: 9800187
    Abstract: A method for controlling parallel-connected inverters is provided. The method includes ascertaining a detection scope of a predetermined PWM synchronization signal when a PWM synchronization signal is received, calculating a synchronization error of a PWM carrier at a PWM synchronization signal reception point, and compensating the synchronization error at a peak of the PWM carrier.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 24, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Bong Ki Lee
  • POLYMER MICROPARTICLE FOR CARRYING PHYSIOLOGICALLY ACTIVE SUBSTANCE AND METHOD FOR PREPARING SAME
    Publication number: 20170299580
    Abstract: Provided are novel polymer particles for carrying a physiologically active substance and a method of preparing the same. The polymer particles for carrying a physiologically active substance can provide an analytical reagent, which has high analytical precision and sensitivity and can be stably prepared; can easily and precisely control the amount of functional groups carrying the physiologically active substance; can introduce, onto the surface of latex particles, a hydrophilic compound for inhibiting a nonspecific reaction; and can be prepared to have a narrow and uniform particle size distribution.
    Type: Application
    Filed: September 2, 2015
    Publication date: October 19, 2017
    Applicants: LSI Medience Corporation, National University Corporation Chiba University
    Inventors: Atsushi KADOWAKI, Tatsuo TANIGUCHI, Yusuke SASAKI, Naho KONISHI
  • ANALOG SIGNAL DETECTING CIRCUIT
    Publication number: 20170299637
    Abstract: The analog signal detecting circuit comprises a reference voltage generator that outputs a plurality of reference voltages, the number of the reference voltages being varied depending on a voltage width between a minimum voltage value and a maximum voltage value of an analog signal; a plurality of comparators that compares a voltage of the analog signal with each of the plurality of reference voltages output from the reference voltage generator; a plurality of pulse generators that outputs a plurality of pulse signals having widths among the plurality of pulse signals varied depending on a frequency of the analog signal; and a combiner circuit section that outputs the pulse signals from the plurality of pulse generators by summing up.
    Type: Application
    Filed: March 16, 2017
    Publication date: October 19, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Jongkug SEON
  • Controller for grid tied inverter system
    Patent number: 9793823
    Abstract: The present invention relates to a controller for a grid tied inverter system with an improved control configuration for increasing response speed of an output current according to specific electric power required. The controller comprises a first control circuit section to output a direct current (DC)-DC converter control signal, and a second control circuit section to output an inverter control signal, wherein the first control circuit section and the second control circuit section are independent of each other without a link for signal input and output therebetween.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: October 17, 2017
    Assignee: LSIS CO., LTD
    Inventor: Ki Su Lee
  • Power metering system, method and system for monitoring power consumed by load
    Patent number: 9794654
    Abstract: Disclosed embodiments relate to a power metering system, a method and a system for monitoring power consumed by loads by using the power metering system. In some embodiments, the system for monitoring power consumed by loads includes an external power supply source, a renewable energy sources, a distribution board, one or more power metering systems, and a monitoring server.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 17, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Hee-Tae Roh, Young-Gyu Yu