Patents Assigned to LSI
  • APPARATUS FOR REMOTELY OPERATING HANDLE OF CIRCUIT BREAKER
    Publication number: 20160163490
    Abstract: An apparatus for remotely operating a handle of a circuit breaker which includes a handle, a first plate, to which the handle is rotatably connected, allowing the handle to be attached to a distributing board, a second plate allowing the first plate to be attached to the distributing board, a first link transferring a rotary motion of the handle, as a linear motion, and a second link rotated according to the linear motion of the first link to provide rotational force enabling the circuit breaker to be switched on or off, includes a handle operating member connected to the second link, having an elastic member to provide elastic force to the second link, while being rotated cooperatively according to rotation of the second link, to fixedly support an ON or OFF position of the handle.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 9, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Jun Yong JANG
  • SOLAR CELL MODULE
    Publication number: 20160163900
    Abstract: According to the solar cell module of the present invention, since the back sheet used in a solar cell module is formed of polytetrafluoroethylene (PTFE), even though the solar cell module is used for a long period of time, contraction of the back sheet is prevented, and thus, the solar cell module may be prevented from being deformed in an outer appearance thereof due to contraction of the back sheet.
    Type: Application
    Filed: September 1, 2015
    Publication date: June 9, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Chang Sub WON, Dong Chan KIM
  • Trip device of molded case circuit breaker using a stair type hanger
    Patent number: 9362076
    Abstract: Disclosed is a trip device of a molded case circuit breaker. The trip device includes a shooter configured to include a body and a rotating shaft which passes through the body, a double torsion spring coupled to both sides of the rotating shaft and configured to provide an elastic restoring force to enable the shooter to rotate, and a crossbar configured to include a hanger that contacts the hanging plate and limits a movement of the shooter. A hanging plate is provided at a lower portion of the body, and a hitting plate is provided at an upper portion of the body.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: June 7, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Su Yang Song
  • Molded case circuit breaker
    Patent number: 9362065
    Abstract: Disclosed is a molded case circuit breaker. The molded case circuit breaker includes a case; an interrupter assembly installed in the case, and provided with an arc gas outlet for discharging arc gas generated from inside of the interrupter assembly to outside; an exhaustion guiding portion disposed between the interrupter assembly and the terminal portion, and provided with a discharge chamber therein, to thus provide an arc gas passage between the arc gas outlet and a vent chute of the terminal portion; and an exhaustion cover mounted to the case with a structure to cover the exhaustion guiding portion, to thus block the arc gas passage.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 7, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Bong Yun Jang
  • PLC network extension system
    Patent number: 9360862
    Abstract: Provided is a PLC network extension system, the system including a basic base generating a control data for controlling a plurality of extension bases, generating a network frame using the control data, and transmitting the network frame to one extension base in the plurality of extension bases via a network cable, and the plurality of extension bases extracting a control data from the received network frame to control a pre-installed module based on the control data.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: June 7, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Geon Yoon, Joon Seok Oh
  • WITHDRAWABLE INTERLOCK DEVICE OF VACUUM CIRCUIT BREAKER
    Publication number: 20160156164
    Abstract: As described above, a withdrawable interlock device of a vacuum circuit breaker according to the present disclosure may locate the second lever between the link and the moving plate, and thus the second lever may be engaged with an outer side of the first lever in a state that the control power connector is coupled to the control power plug not to move the moving plate through the second lever so as to maintain a state that the fitting protrusion is fitted into the fitting groove, thereby having an effect of preventing the circuit breaker body from being separated to the outside of the cradle in a state that the control power connector is coupled to the control power plug to supply power.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 2, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Hong Ik YANG, Han Joo LEE, Jun Youn JO, Kil Young AHN
  • Apparatus and method for detecting failure of switching device in inverter
    Patent number: 9354276
    Abstract: Disclosed is an apparatus and method for detecting failure of a switching device in an inverter, the method including detecting a maximum value and a minimum value of a phase current inputted into a motor from synchronous angle information of the motor through a switching device in a predetermined leg of the inverter unit, and detecting failure of the switching device of the leg through an asymmetry ratio of the phase current.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: May 31, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Gi Young Choi
  • INSULATION DESIGN APPARATUS OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM
    Publication number: 20160149508
    Abstract: An insulation design apparatus performing the insulation design of a high voltage direct current (HVDC) transmission system is provided. The insulation design apparatus includes a first insulation model generation unit; a second insulation model generation unit; an insulation verification unit, wherein the second insulation model generation unit selects the positions of each facility, device and arrester of the HVDC transmission system through a system single line diagram to select a representative facility in the HVDC transmission system, divides the HVDC transmission system into the plurality of regions based on the selected representative facility, and generates an insulation model for each region.
    Type: Application
    Filed: July 7, 2015
    Publication date: May 26, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Ho Seok CHOI, Yong Kil CHOI
  • DATA RATE AND PVT ADAPTATION WITH PROGRAMMABLE BIAS CONTROL IN A SERDES RECEIVER
    Publication number: 20160142233
    Abstract: Described embodiments provide for, in a SerDes device, an adaptation process that adjusts data path gain through programmable-bias based on process, voltage, temperature (PVT) and data rate changes. Such adaptation process extends bias current dynamic range, and low frequency gain can be programmed to a desired target range of values for a given variable gain amplifier (VGA) setting at any PVT and data rate corner. A receive (RX) data path structure auto-adapts data path gain through programmable bias based on sensed PVT and data rate changes. The low frequency attenuation/gain range is extended, and can be programmed to a desirable targeted range by a SerDes device RX adaptive process for a given VGA and linear equalizer (LEQ) setting at any given PVT and data rate condition.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 19, 2016
    Applicant: LSI CORPORATION
    Inventors: Mohammad S. Mobin, Weiwei Mao, Brett D. Hardy
  • SYSTEM FOR WATER SUPPLY USING SUNLIGHT
    Publication number: 20160141912
    Abstract: The claimed water supply system using sunlight has a technical effect of improving the energy efficiency by having a saving unit storing current that was generated by solar cells but was left over after running a motor so as to use the stored current later.
    Type: Application
    Filed: October 21, 2015
    Publication date: May 19, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Waithiru Charles LAWRENCE
  • PHOTOVOLTAIC INVERTER
    Publication number: 20160142007
    Abstract: The present invention relates to a photovoltaic inverter capable of reducing a leakage current and a switching loss by changing a pulse width modulation (PWM) method and a configuration of an output filter. To this end, the photovoltaic inverter includes a direct-current (DC) link capacitor connected in parallel to a photovoltaic module, a switch unit including first to fourth switches and operating by a half unipolar switching method, and a reactor having one end connected to another end of the first switch and one end of the second switch, and another end connected to a grid, the reactor having a predetermined inductance.
    Type: Application
    Filed: September 28, 2015
    Publication date: May 19, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Sun Jae YOON
  • Molded case circuit breaker
    Patent number: 9343245
    Abstract: A molded case circuit breaker, includes: a case; a power side terminal portion and a load side terminal portion formed at two sides of the case; a mounter installed at the terminal portion with a structure to enclose a terminal connector connected to the terminal portion, wherein the mounter includes: a mounting surface for mounting the terminal connector; insulation surfaces extending from two side edges of the mounting surface, and spaced from each other; and a cover surface having an opening, and formed on outer side surfaces of the insulation surfaces so as to cross the insulation surfaces and the mounting surface. Under such configuration, a regulated insulation distance can be obtained, and the terminal connector can be supported more stably.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: May 17, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Ki Hwan Oh
  • Circuit breaker with a magnet fixing means
    Patent number: 9343257
    Abstract: The present invention provides a magnet fixing means having a circuit breaker including a heater generating heat due to a conduction current induced to a moving contact of the circuit breaker; a bimetal deformed due to heat generated by the heater to separate a contact point of the moving contact; a magnet generating a magnetic force to move an armature bar when a current above a previously set reference current is induced; a trip case accommodating the bimetal and magnet, at least part of which is made of a synthetic resin material; a magnet fixing portion integrally formed in the trip case, and made of a synthetic resin material; a magnet fixing means fastening the magnet to the magnet fixing portion; and a bimetal fixing means fixing the bimetal to the heater, where a magnet-side separating gap exists between the magnet and the heater such that the heater does not contact the magnet.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: May 17, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Ki Ho Baek
  • Power supply system for electric vehicle and control method thereof
    Patent number: 9340123
    Abstract: A power supply system for EV and a control method thereof are provided, the system including a high voltage battery generating a driving voltage to a motor of the EV, a low voltage battery generating a driving voltage for other electronic equipment, an LDC (low voltage DC-DC Converter) converting a high voltage generated by the high voltage battery to a low voltage, and generating a control power for charging the low voltage battery, an alternator generating a control power for charging the low voltage battery using a rotary power of the motor, and a control power selector selectively supplying the control power generated by the LDC or the alternator to the low voltage battery.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: May 17, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Sung Jin Jang
  • Method for measuring opening and closing delay time of elevator brake
    Patent number: 9340393
    Abstract: Disclosed is a method for measuring opening and closing delay time of elevator brake, the method including outputting, by a brake signal output unit, a brake signal, receiving, by a brake signal checking unit, the brake signal and determining whether the brake signal is an opening signal or a closing signal to output an opening/closing determination signal, receiving, by a brake counter unit, the opening/closing determination signal, and starting a count for measuring a brake opening time or a brake closing time to accumulate and output counted value, determining, by a motor drive checking unit, whether a motor configured to drive an elevator is driven upon receipt of the counted values and outputting a drive determination signal, and receiving, by a brake opening/closing delay computation unit, the drive determination signal and the counted value to compute a brake opening/closing delay time.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 17, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Min Hun Chi
  • APPARATUS FOR CONTROLLING INVERTER
    Publication number: 20160134219
    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: Application
    Filed: November 2, 2015
    Publication date: May 12, 2016
    Applicant: LSIS CO., LTD.
    Inventor: JUNGHAN KIM
  • Correction circuit limiting inrush current
    Patent number: 9337721
    Abstract: Provided is a power factor correction circuit correcting a power factor of AC voltage. The power factor correction circuit includes: a rectifying unit stopping rectifying the AC voltage in a transient state and generating an rectified voltage by rectifying the AC voltage in a steady state; a power factor correction unit generating a power-factor-corrected voltage by correcting the rectified voltage; a smoothing unit generating a smoothed voltage by smoothing the power-factor-corrected voltage; and an inrush current limiting unit providing a limited current by limiting an inrush current generated by the AC voltage in the transient state and stopping providing a current to the smoothing unit.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 10, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Chan Gi Park, Jae Ho Lee, Ho Sang Jin
  • Multilevel inverter
    Patent number: 9337746
    Abstract: A multilevel inverter having an efficient structure is provided, the multilevel inverter including a modularized phase-shift transformer including a plurality of modules to provide a phase shifted voltage by receiving a 3-phase input voltage, a plurality of first group unit power cells configured to provide an output voltage of predetermined phase, a plurality of second group unit power cells configured to provide an output voltage of predetermined phase, a plurality of third group unit power cells configured to provide an output voltage of predetermined phase. One of the first group unit power cells, one of the second group unit power cells and one of the third group unit power cells are paired to provide an output voltage of same phase.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: May 10, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Anno Yoo
  • Charging stand for electric vehicle
    Patent number: 9333867
    Abstract: Disclosed is a charging stand for an electric vehicle, the charging stand including a main body, a door coupled to the main body in such a way as to be opened or closed, and an alarm device generating an alarm if the door is opened, wherein the alarm device has a door sensing unit causing a change in impedance if the door is opened, a controller receiving a signal transmitted from the door sensing unit, and a switching circuit activated by the controller to generate an alarm or store an alarm history, so that the charging stand is advantageous in that the opening of the door can be precisely detected, and the alarm history can be checked later.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 10, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Chung Woo Lee
  • Block filter for power line communication
    Patent number: 9337896
    Abstract: Provided is a blocking filter for PLC, the blocking filter including a low pass filter unit including a capacitor and a plurality of inductors, a plurality of magnetic saturation prevention circuits each connected to the inductor in parallel to prevent magnetic saturation of the inductor, and operating in response to an interruption control signal inputted from outside, and a first switch connected or opened in response to the interruption control signal and interconnected between the low pass filter unit and a neutral line.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 10, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Jae Kang Sim, Young Gyu Yu