Patents Assigned to LSI
  • Access controlling method of dual port memory system
    Patent number: 9766821
    Abstract: An access controlling method of a dual port memory system is provided. The method includes: requesting, by a first processor, an access from a dual port memory; and transmitting, by the dual port memory, a result signal according to the access request to the first processor, wherein the result signal includes a first result signal for notifying access success, a second result signal for notifying access failure, and a third result signal for notifying access hold.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: September 19, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Dae Hyun Kwon, Soo Gang Lee
  • INTERLOCK DEVICE OF WITHDRAWABLE ARC ELIMINATOR
    Publication number: 20170263389
    Abstract: The present invention relates to an interlock device of a withdrawable arc eliminator, and more particularly, to an interlock device of a withdrawable arc eliminator capable of preventing insertion or withdrawal of an arc eliminator applied to an electrical panel, in a closed state of the arc eliminator.
    Type: Application
    Filed: July 15, 2016
    Publication date: September 14, 2017
    Applicant: LSIS CO., LTD.
    Inventors: Hyunwook LEE, Kwanghyeon AHN, Seogwon LEE, Youngwoo JEONG
  • ARC ELIMINATOR
    Publication number: 20170263390
    Abstract: An arc eliminator includes a housing having a space formed therein and including an opening, an arc extinguishing part installed in the housing and including a moving rod disposed to be movable to the space, an indicator rotatably installed within the housing and seen through the opening, and an indicator rotating mechanism interworking with the moving rod when the moving rod moves, to rotate the indicator. A closing state and opening state of an arc extinguishing part may be easily recognized through an indicator and an arc accident may be minimized.
    Type: Application
    Filed: October 25, 2016
    Publication date: September 14, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Kwanghyeon AHN
  • Apparatus for auxiliary contact of circuit breaker
    Patent number: 9761400
    Abstract: An apparatus for auxiliary contact of a circuit breaker includes a frame, a fixed contactor fixed to the frame inside the frame, a movable contactor installed inside the frame to be contacted with or separated from the fixed contactor, and a contact control member installed inside the frame, the contact control member being formed in a straight line shape, the contact control member being pressurized upward as an overcurrent is applied to the circuit breaker to allow the movable contactor to be contacted with or separated from the fixed contactor.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: September 12, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Hyungeun Cho
  • Luminaires and thermal management apparatuses
    Patent number: 9759416
    Abstract: A luminaire has a housing plate on which a circuit board rests. The circuit board has light sources for generating light and circuit board bosses. A lens is biased toward the circuit board and contacts a distal end of the circuit board bosses to press the circuit board against the housing plate.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: September 12, 2017
    Assignee: LSI industries, Inc.
    Inventors: John D. Boyer, Eric Jon Mooar, Edward R. McCracken, Jr., Daniel Hutchens, Travis Meyers Schubert
  • Magnetic switch
    Patent number: 9754749
    Abstract: A magnetic switch includes: a housing; a cylinder coupled to an inner side of the housing; a stationary contact arm coupled to the housing; a movable contact arm positioned to be movable within the housing and brought into contact with the stationary contact arm or separated therefrom; a coil assembly installed within the housing and configured to form a magnetic field when a current is applied thereto; a movable shaft coupled to the movable contact arm in an upper portion thereof; a fixed core inserted into the cylinder and surrounding the movable shaft; and movable cores fixed to the movable shaft and configured to press the movable shaft by a magnetic field formed by the coil assembly to move the movable shaft.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: September 5, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Sol San Son
  • Cable installment type charging control device and method of operating the same
    Patent number: 9751412
    Abstract: A cable installment type charging control device for charging an electric vehicle (EV) by using power of a grid-side is provided. The cable installment type charging control device includes a first relay delivering power of the grid-side to an EV-side, a second relay delivering power of the grid-side to the EV-side, a first sub fusion detecting unit for detecting whether the first relay is fused through an-EV side terminal of the first relay and a grid-side terminal of the second relay, and a second sub fusion detecting unit for detecting whether the second relay is fused through an-EV side terminal of the second relay and a grid-side terminal of the first relay.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 5, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Chang Jun Im
  • Draw out apparatus for air circuit breaker
    Patent number: 9755407
    Abstract: The present invention relates to a draw out apparatus for an air circuit breaker, and more particularly, to a draw out apparatus for an air circuit breaker capable of allowing a circuit breaker body to be stopped at a preset position, by executing idling when an abnormal operation such as an over-draw in operation and an over-draw out operation occurs at the preset position such as a disconnect position, a test position or a connect position, and capable of preventing damage of a circuit breaker and a cradle.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: September 5, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Kyujung Kim
  • Molded case circuit breaker
    Patent number: 9754751
    Abstract: Disclosed is a molded case circuit breaker including a case configured to accommodate an element for trip, an upper cover detachable attached to the case, a dial configured to include a fixing plate, which is provided to protrude along an outer circumference surface thereof, and a first stopper disposed under the fixing plate, a crossbar moved by the dial, a first dial fitting hole provided in the upper cover for the dial to be fitted into the first dial fitting hole, and a dial rotation adjusting unit provided in the first dial fitting hole and fitted between the fixing plate and the first stopper to guide a rotation of the dial, the dial rotation adjusting unit including a plurality of fitting grooves arranged at certain intervals. The first stopper is fitted into and fixed to the plurality of fitting grooves according to the rotation of the dial.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: September 5, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Kyunghwan Oh
  • Electric vehicle charging apparatus for controlling heat during charging
    Patent number: 9751413
    Abstract: A charging apparatus is provided. The charging apparatus includes a plug supplying electrical energy to an electric vehicle (EV) through a plurality of plug pins; a plurality of temperature sensors disposed in the plug and measuring the temperatures of the plurality of plug pins; and a control unit determining the presence or absence of the overheating of the plug based on the temperatures measured from the plurality of temperature sensors.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 5, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Chang Jun Im
  • Digital protective relay
    Patent number: 9755656
    Abstract: The present disclosure relates to provide an active erroneous sample elimination device or erroneous sample elimination method for a relay capable of correctly implementing erroneous sample elimination processing even during a plurality of electrical disturbances mixed with an electrical quantity detection signal, and a digital protective relay according to the present disclosure may include a converter that samples an analog signal and converts the sampled signal to a digital signal; and a processor that searches an inflection point at which an electrical variation quantity varies from an increase to a decrease or from a decrease to an increase based on the digital signal, and compares an electrical variation quantity prior to and subsequent to the inflection point with a preset electrical quantity.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: September 5, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Jiung Kim
  • ENCLOSED TYPE ELECTROMAGNETIC SWITCH HAVING STATUS INDICATION FUNCTION
    Publication number: 20170250044
    Abstract: The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.
    Type: Application
    Filed: January 14, 2017
    Publication date: August 31, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Jaehyuk CHOI
  • MOTOR CONTROL CENTER
    Publication number: 20170250526
    Abstract: A motor control center (MCC) includes a cabinet, a bus located within the cabinet, a partition vertically partitioning the inside of the cabinet, and an MCC unit located on the partition and including a clip connected to the bus, a first guide located on a lower surface of the MCC unit and having a protrusion part, and a second guide located on an upper surface of the partition and slidably guiding the first guide in a forward/backward direction, wherein the second guide has rise limiting parts limiting rise of the protrusion part in order to limit rise of the first guide, and thus, separation of the MCC unit is minimized, and since the MCC unit is mounted in a normal position, high reliability is obtained.
    Type: Application
    Filed: January 21, 2017
    Publication date: August 31, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Ejae CHOI
  • Modular multi-level converter controlling plurality of sub-modules
    Patent number: 9748856
    Abstract: Provided is a modular multi-level converter including a plurality of sub-modules including switching elements, a plurality of sub-control units respectively controlling the plurality of switching elements included in the plurality of sub-modules, and a central control unit which determines switching operation conditions of the plurality of sub-modules, and transmits control signals corresponding to the determined switching operation conditions to the plurality of sub-control units. Each of the plurality of sub-control units acquires state information on the sub-module controlled thereby and transmits the acquired state information to the central control unit.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 29, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Young Woo Kim, Woong Hyub Song
  • FAULT DETECTOR FOR ANTI-PARALLEL THYRISTOR
    Publication number: 20170244404
    Abstract: A fault detector for an anti-parallel thyristor includes: a power supply unit configured to supply power to the first and second thyristors; a first current sensor configured to output a first current measurement value that flows through the first thyristor; a second current sensor configured to output a second current measurement value that flows through the second thyristor; and a detector which notifies a fault of a thyristor when the first and second current measurement values satisfy a set fault condition,
    Type: Application
    Filed: November 3, 2016
    Publication date: August 24, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Young Woo KIM
  • Terminal connecting mechanism for molded case circuit breaker
    Patent number: 9741500
    Abstract: A terminal connecting mechanism for a molded case circuit breaker that does not need a tool for connection or release between a wire and a terminal is disclosed. The terminal connecting mechanism of a molded case circuit breaker comprises a supporter having a through hole portion for allowing passing through of a terminal of the molded case circuit breaker and a terminal seat portion where the terminal, which has passed through the through hole portion, is mounted; a spring of which one end is supported by the supporter; and a lever member being in contact with the other end of the spring, rotataby moving to a position for allowing insertion of a wire to contact the terminal, and pressurizing the wire by means of an elastic force of the spring to maintain a contact state between the wire and the terminal.
    Type: Grant
    Filed: January 14, 2017
    Date of Patent: August 22, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Insu Seo
  • Molded case circuit breaker
    Patent number: 9741520
    Abstract: The present invention relates to a molded case circuit breaker, in which a locking member is formed at an inner side of a lever and an anti-rotation member is formed at an upper like. Accordingly, the locking member can be brought into contact with the anti-rotation member even though a handle is rotated to an OFF position even in a fused state between a fixed contactor and a movable contactor, thereby preventing a rotation of the handle to the OFF position.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: August 22, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Suyang Song
  • Method for setting capacity of buffer
    Patent number: 9742706
    Abstract: The present invention is directed to method for setting capacity of a buffer, the method including an initializing step of initializing a plurality of sub-buffers forming a main buffer, a comparison data reception step of receiving a storage frequency and a remaining capacity from the plurality of sub-buffers and comparing the storage frequency with the remaining capacity, a data comparison step of determining whether a current storage frequency of the plurality of sub-buffers and a past storage frequency are equal, a set capacity calculation step of calculating an allocation capacity of the plurality of sub-buffers, and a capacity re-setting step of re-setting the capacity of the plurality of sub-buffers using the calculated allocation capacity.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 22, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Hyung Lae Kim
  • Apparatus for controlling inverter
    Patent number: 9742340
    Abstract: Disclosed herein is an apparatus for controlling an inverter in an inverter system. The apparatus includes: a first determining unit to determine a magnitude, a phase and a frequency of an input voltage to an electric motor in the inverter system; and a second determining unit to determine a restart command voltage for generating an inverter driving voltage larger than a residual voltage in the electric motor using the magnitude of the input voltage determined by the first determining unit, when the inverter system is restarted.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 22, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Seung-Cheol Choi, An-No Yoo
  • Latch relay
    Patent number: 9741518
    Abstract: A latch relay includes a frame, a bobbin installed in the frame and having a coil wound therearound, first and second yokes provided as magnetic bodies, a rotary mover rotating in a clockwise direction or in a counterclockwise direction between head portions of the first and second yokes, first and second fixed contactors installed to be spaced apart from one another and parallel to each other within the frame, a movable contactor having one end connected to the second fixed contactor, a transmission lever having one end coupled to one side of the rotary mover to make a vertical movement, a support member fixedly installed on one side of the transmission lever, and an elastic member providing contact force such that the movable contactor is brought into contact with the first fixed contactor or separated from the first fixed contactor, while moving according to a movement of the transmission lever.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 22, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Yeonsoon Choi