Patents Assigned to LSI
  • Method and apparatus for generating PWM signal
    Patent number: 10177754
    Abstract: Disclosed herein are a method and an apparatus for generating a random PWM voltage reference signal for driving an inverter, which can more simply generate random position PWM (RPPWM) in which a position of an active vector is changed to achieve the same effect as when a switching frequency is changed.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: January 8, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jin-Kyu Yang
  • Board apparatus
    Patent number: 10178759
    Abstract: Disclosed herein is a board apparatus including a printed circuit board, including a first ground wiring disposed on one surface of the printed circuit board; a second ground wiring disposed on the other surface of the printed circuit board; and a switch module disposed in an overlapped region between the first ground wiring and the second ground wiring, and including a bolt which penetrates through the printed circuit board and a nut which is in contact with the second ground wiring and is coupled to a screw of the bolt.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: January 8, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Deok-Young Lim, Chun-Suk Yang
  • Non-specific reaction inhibitor
    Patent number: 10168325
    Abstract: Disclosed is a non-specific reaction inhibitor for use in an immunological measurement, comprising a complex of an antibody or a fragment of the antibody capable of specifically binding to a non-specific reaction factor, and a polymer. The non-specific reaction inhibitor can inhibit a non-specific reaction which may interfere with the accurate detection or quantification of a trace substance in an immunological measurement method.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: January 1, 2019
    Assignee: LSI MEDIENCE CORPORATION
    Inventors: Yoshikazu Takagi, Yuichi Shintani
  • Reactive power compensator and method of controlling the same
    Patent number: 10164435
    Abstract: A reactive power compensator includes a plurality of phase clusters each including plurality of cells and a controller configured to control the plurality of phase clusters. The controller performs control to generate an offset signal through phasor transformation based on respective voltage values and current values of the plurality of phase clusters and to compensate for energy errors between the plurality of phase clusters based on the generated offset signal.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 25, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Yong Ho Chung, Gum Tae Son, Seung Ki Sul, Jae Jung Jung, Joon Hee Lee
  • Interlock device of withdrawable arc eliminator
    Patent number: 10163587
    Abstract: The present invention relates to a withdrawable arc eliminator having an interlock function, and more particularly, to a withdrawable arc eliminator having an interlock function capable of preventing insertion or withdrawal of an arc eliminator applied to an electrical panel, in a closed state of the arc eliminator.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: December 25, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Hyunwook Lee, Kwanghyeon Ahn, Seogwon Lee, Youngwoo Jeong
  • Extinguishing unit of molded case circuit breaker
    Patent number: 10163598
    Abstract: The present disclosure relates to an extinguishing unit for a molded case circuit breaker, and more particularly, to an extinguishing unit for a molded case circuit breaker that has grids double-arranged in an extinguishing part to improve arc extinguishing performance. According to an embodiment of the present disclosure, an extinguishing unit for a molded case circuit breaker includes a pair of side plates arranged to face each other and a plurality of grids arranged in a space defined between the pair of side plates, wherein the grids include a plurality of first grids arranged at a front portion of the pair of side plates; and a plurality of second grids arranged at a rear portion of the pair of side plates, wherein a re-division space for re-dividing an arc is defined between the first grids and the second grids.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 25, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Yeon-Woo Lee
  • Programmable logic controller
    Patent number: 10156836
    Abstract: The PLC according to the present disclosure includes a control module configured to perform a control operation according to a preset program; a first communication module configured to transmit a control command from the control module to at least one of first external devices; and a second communication module configured to transmit the control command from the control module to at least one of second external devices, wherein the first and second communication modules transmit external data to the control module via a data transmission cable which is shared with each other, and check interrupt signals therebetween to alternately transmit the external data to the control module, respectively.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 18, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Hwa-Soo Ryu
  • Analog input and output module
    Patent number: 10158505
    Abstract: Provided is an analog input and output module, the module comprising a first signal processing unit configured to separate analog signal inputted from a plurality of HART transmitters from first HART data, convert the analog signal to digital data, transmit the first HART data to a second signal processing unit, and transmit second HART data received from the second signal processing unit to at least one of the plurality of HART transmitters; and the second signal processing unit configured to control the first signal processing unit and storing conversion result.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: December 18, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Yonggak Sin
  • Power monitoring system
    Patent number: 10151804
    Abstract: Disclosed embodiments relate to a power monitoring system. In some embodiments, the power monitoring system includes: a sampling device configured to measure patterns of how loads included in the power system consume energy; an electric meter configured to measure a first amount of energy supplied from a transmission system to the power system; a power supply configured to supply power stored therein or generate power to supply it to the power system, and measure a second amount of energy supplied to the power system; an external server configured to receive measurements of the patterns from the sampling device, and obtain a third amount of energy consumed by the loads based on the measurements; and a home server configured to receive the first amount of energy and/or second amount of energy and transmit/receive data to/from the external server.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 11, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Hun Park, Young-Gyu Yu, Hae-Tae Roh
  • Interlock device for preventing close during insertion or withdraw on circuit breaker in switch board
    Patent number: 10153625
    Abstract: The present disclosure relates an interlock device for preventing insertion or withdrawal of a circuit breaker into or from a switch board having an ON button and an OFF button and including a switch board body provided with a housing and a rail having an interruption hole formed on one side surface thereof, a carriage movable back and forth along the rail of the switch board body, and the circuit breaker including a main body installed on the carriage and inserted into or withdrawn from the switch board body, the interlock device comprising an interlock rod protruding toward one side to set or release a pressed state, wherein the interlock rod is set in or released from the pressed state and inserted into or disengaged from the interruption hole when the main body is put in or tripped.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 11, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Han-Joo Lee, Kil-Young Ahn, Hong-Ik Yang
  • Mechanism coupling structure of molded case circuit breaker
    Patent number: 10147578
    Abstract: A mechanism coupling structure of a molded-case circuit breaker according to an embodiment of the present disclosure including a shaft to one side of which a movable contactor is coupled, and on a part of which a rotating pinhole is formed in a penetrating manner; a base assembly into which the shaft is rotatably accommodated and coupled, a switch mechanism coupled to an upper portion of the base assembly and exposed with a first lower link and a second lower link at a lower side thereof, and a rotating pin coupled in a penetrating manner to the first lower link, second lower link and rotating pinhole may be provided therein, wherein the rotating pin has a protruding portion for release prevention at one end thereof.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 4, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Sungrok Yoo, Kihwan Oh
  • Apparatus and method for updating operating system in programmable logic controller
    Patent number: 10146200
    Abstract: The present disclosure relates to an apparatus for updating an OS (Operating System) in PLC (Programmable Logic Controller) configured to update an OS in a PLC, and to perform an operation by instantly applying the updated OS to the PLC, and a method using the same, the apparatus including an MPU (Micro Processing Unit), a flash memory, a second working memory, and a switching unit.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: December 4, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Jo Dong Park
  • Apparatus of sliding submodule
    Patent number: 10141724
    Abstract: An apparatus of sliding a submodule includes a sliding rail part installed on one side of a cabinet; a submodule capable of being entered into or withdrawn from the cabinet; and a sliding guide part installed at one side of the submodule and slidingly moved by the sliding rail part. The sliding rail part may include a rail body, first and second extending parts extending from opposite ends of the rail body, and first and second sliding rails connected to the first and second extending parts respectively and protruding toward the sliding guide part.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: November 27, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Teag Sun Jung, Woong Hyeob Song
  • Interlock apparatus of ring main unit
    Patent number: 10141129
    Abstract: An interlock apparatus of a ring main unit is provided. The interlock apparatus may be provided between a plurality of switches which are included in the ring main unit and are adjacent to each other, and when one switch is controlled to a closed state and is connected to a power supply source, the other switch adjacent to the one switch is prevented from being connected to the power supply source, thereby preventing the plurality of switches from being simultaneously connected to the power supply source.
    Type: Grant
    Filed: January 14, 2017
    Date of Patent: November 27, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Dongsik Lee
  • Apparatus for controlling inverter
    Patent number: 10141881
    Abstract: An apparatus for controlling an inverter is disclosed. The apparatus for controlling the inverter contained in an inverter system configured to drive a motor determines a slip frequency to be used for compensation of a frequency of a first reference voltage, not only using a first reference voltage (including an amplitude and frequency) of the first reference voltage applied to the inverter, but also using an output current of the motor or a rotor speed of the motor. The apparatus determines not only a frequency of a second reference voltage obtained by compensation of the slip frequency, but also an amplitude of the second reference voltage corresponding to the frequency of the second reference voltage.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 27, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Seung-Cheol Choi, Hak-Jun Lee
  • Air circuit breaker
    Patent number: 10141140
    Abstract: The present invention relates to an air circuit breaker, in which a recess is formed on one side or each of both sides of each contact plate provided in an insulating cage so as to reduce a contact area between a movable contactor and the contact plate when the movable contactor and the contact plate are brought into contact with each other, thereby preventing a contact portion between the movable contactor and the contact plate from being melted due to heat generation.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: November 27, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Woojin Park
  • Communication device and communication method
    Patent number: 10142058
    Abstract: A method for a first communication device transmitting data to a second communication device, according to one embodiment of the present invention, comprises the steps of: the first communication device generating a safety unique identifier by using a unique identifier of the first communication device and a unique identifier of the second communication device, in order to confirm the validity of connection between the first communication device and the second communication device; the first communication device calculating a data error detection code for detecting an error by using the safety unique identifier and the data; the first communication device generating a packet comprising the data and the data error detection code; and the first communication device transmitting the packet to the second communication device.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 27, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Sung Han Lee, Dae Hyun Kwon, Joon Seok Oh
  • Charging device of air circuit breaker
    Patent number: 10134554
    Abstract: A first support member and a second support member are provided in a rotation support device and a worm gear is rotated in a state that the second support member is inserted in the first support member, whereby the worm gear is prevented from being shaken through the first support member and the second support member and heat transmission to a housing due to rotation of the worm gear to damage the housing is prevented.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 20, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Kyujung Kim, Seungpil Yang
  • Vacuum interrupter
    Patent number: 10134548
    Abstract: The present disclosure relates to a vacuum interrupter that is installed within a vacuum circuit breaker to break a circuit. The vacuum interrupter includes an insulated container, a seal cup, a fixing electrode, a diaphragm, and a movable electrode. The insulated container is formed in a cylindrical form. The seal cup is installed on an upper end of the insulated container. The fixing electrode includes a fixing shaft and a fixing contact member installed on the other end of the fixing shaft. The diaphragm is installed on a lower end of the insulated container. The movable electrode includes a movable shaft having one end fixed to the diaphragm and the other end disposed within the insulated container and formed to be linearly movable, and a movable contact member installed on the other end of the movable shaft to be selectively contacted to the fixing contact member.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 20, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Jae-Seop Ryu
  • Electricity providing system including energy storage system
    Patent number: 10135249
    Abstract: Disclosed embodiments relate to power supply systems for supplying power. In some embodiments, a power supply system includes: a plurality of power conversion systems configured to receive and convert DC power from a power generator which generates power or an energy storage system which discharges stored energy; and a system controller configured to transmit a control instruction to control the plurality of power conversion systems based on a transmission protocol depending on an attribute of the control instruction.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 20, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Jae-Hwan Lim