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公开(公告)号：US09806709B2
公开(公告)日：2017-10-31
申请号：US15098252
申请日：2016-04-13
Applicant: LSIS CO., LTD.
Inventor： Jae-Moon Lee , Chun-Suk Yang
CPC classification number: H03K17/6871 , H02M1/08 , H02M1/32 , H02M1/36 , H02M2001/0006
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.
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公开(公告)号：US10816601B2
公开(公告)日：2020-10-27
申请号：US15919707
申请日：2018-03-13
Applicant: LSIS CO., LTD.
Inventor： Chun-Suk Yang , Hong-Seok Kim
IPC: G01R31/327 , H02P27/08 , H02M1/08 , H02M7/5387 , H02M1/32 , G01R31/42 , H02M1/00 , H02M7/797
Abstract: A diagnosing device of a three phase inverter is provided, which includes a relay connected in series with a capacitor disposed on a DC link, an initial charging resistor connected in parallel to the relay, an inverter comprising a switching device for controlling a power supply to three phase output lines, a current sensor disposed on a connection line connecting between the DC link and the inverter to sense a current, and a control unit for driving the switching device and diagnosing at least one of opening and shorting of the switching device according to whether the current is sensed or not.
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公开(公告)号：US10314211B2
公开(公告)日：2019-06-04
申请号：US15855662
申请日：2017-12-27
Applicant: LSIS CO., LTD.
Inventor： Dong-Sik Kim , Chun-Suk Yang
Abstract: Disclosed herein is an assembly structure for a motor drive unit. An assembly structure for a motor drive unit is disclosed. The assembly structure does not require the time for rotating, laying down, or fastening the components during processes of producing it, so that the time required for production can be shortened. In addition, since no separate fastening part is required, the assembly structure can be simplified and the production costs can be reduced.
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公开(公告)号：US20180295716A1
公开(公告)日：2018-10-11
申请号：US15866062
申请日：2018-01-09
Applicant: LSIS CO., LTD.
Inventor： Deok-Young Lim , Chun-Suk Yang
CPC classification number: H05K1/0239 , H02M1/44 , H05K1/0215 , H05K1/0216 , H05K1/0233 , H05K1/0243 , H05K1/0256 , H05K1/0263 , H05K3/222 , H05K3/32 , H05K2201/10409
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.
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公开(公告)号：US10247625B2
公开(公告)日：2019-04-02
申请号：US15350316
申请日：2016-11-14
Applicant: LSIS CO., LTD.
Inventor： Hong-Seok Kim , Jae-Moon Lee , Chun-Suk Yang
Abstract: The present invention relates to an apparatus for correcting a temperature sensing signal of an IGBT temperature sensing device which outputs only a temperature sensing signal having a voltage value equal to or higher than a preset voltage value, by using an output limiting diode. The apparatus includes: a calculating part configured to calculate a conduction current value of the output limiting diode by using the resistance of an NTC thermistor included in the IGBT temperature sensing device; a determining part configured to determine a drop voltage value of a voltage drop occurring in the output limiting diode based on the conduction current value; and a correcting part configured to correct the temperature sensing signal by increasing the voltage of the temperature sensing signal output from the IGBT temperature sensing device by the drop voltage value.
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Patent Agency Ranking
公开(公告)号：US10175274B2
公开(公告)日：2019-01-08
申请号：US15865954
申请日：2018-01-09
Applicant: LSIS CO., LTD.
Inventor： Chun-Suk Yang , Chengde Xu
IPC: G01R19/30 , H02M7/5387 , H02M7/529 , H04L27/20 , H02M1/00
Abstract: Disclosed is a device for detecting an output current of an inverter. The device for detecting an output current of an inverter according to the present disclosure includes a shunt resistor connected to an output end of a capacitor of a direct current (DC) link; a detector connected to the shunt resistor and configured to detect the output current; and a controller configured to control a sampling timing of a current in the detector.
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公开(公告)号：US09997904B2
公开(公告)日：2018-06-12
申请号：US15016185
申请日：2016-02-04
Applicant: LSIS CO., LTD.
Inventor： Hong-Seok Kim , Chun-Suk Yang
Abstract: Disclosed herein is a method for controlling a trip event of an inverter by taking into account the temperature of the inverter. The method includes: sensing a change in temperature of the inverter for an overload current measurement time using the temperature sensing circuit; determining an amount of heat emitted from the inverter based on the change in temperature; determining an electrical energy of the inverter consumed for the overload current measurement time; determining a compensation reference time based on the amount of heat and the electrical energy; and comparing the compensation reference time with the overload current measurement time to trip the inverter. As a result, the actual temperature of the inverter measured when the inverter is in operation is reflected, so that the trip event of the inverter can be controlled more accurately.
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公开(公告)号：US10566911B2
公开(公告)日：2020-02-18
申请号：US16278559
申请日：2019-02-18
Applicant: LSIS CO., LTD.
Inventor： Deok-Young Lim , Hu-Jin Lee , Chun-Suk Yang
IPC: H02M7/5387 , H02M1/36 , H02M5/458 , H02M1/32 , H02M7/06 , H02M7/5395 , H02P1/08 , H02P27/06 , H02P27/08
Abstract: A device and method for controlling an inverter is disclosed. The inverter-controlling device in accordance with the present disclosure determines an operation state of a switching element of an initial charging module based on predetermined time durations and a magnitude of a DC link voltage measured at each of time points corresponding to the predetermined time durations.
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公开(公告)号：US10178759B2
公开(公告)日：2019-01-08
申请号：US15866062
申请日：2018-01-09
Applicant: LSIS CO., LTD.
Inventor： Deok-Young Lim , Chun-Suk Yang
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.
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公开(公告)号：US09929669B2
公开(公告)日：2018-03-27
申请号：US15426378
申请日：2017-02-07
Applicant: LSIS CO., LTD.
Inventor： Deok-Young Lim , Chun-Suk Yang
IPC: H05K7/20 , H02M7/00 , H05K7/14 , H01L23/473
CPC classification number: H02M7/003 , H05K7/1417 , H05K7/1432 , H05K7/209
Abstract: Disclosed herein is an inverter. The inverter includes a base provided with a heat dissipation part, a main board disposed on the base to output an input power along an independent power flow through a rectification part and a inverter part, and a control board fixed to be electrically connected to the main board to form a flow of a secondary power and a flow of an electrical signal, the flow of the secondary power and the flow of the electrical signal being independent from each other.
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