Abstract: A method for manufacturing a semiconductor device and a semiconductor device produced thereby. For example and without limitation, various aspects of this disclosure provide methods for manufacturing a semiconductor device, and semiconductor devices produced thereby, that comprise forming an interposer including a reinforcement layer.

Abstract: The present invention relates to a fire resistant paint composition, to a production method for same and to a painting method for a fire resistant paint using same, and, one example of implementation of the present invention can provide a fire resistant paint composition comprising: between 70 and 95 wt. % of a binder; between 1 and 10 wt. % of an aerogel; between 1 and 5 wt. % of a foaming agent; and the remainder of water, and can provide a production method for same and a painting method for a fire resistant paint using same.

Abstract: The present disclosure relates to an initial charging system for a medium-voltage inverter and a method for controlling the system. The initial charging system comprises: a first switch for switching between a medium-voltage inverter and a power supply thereto; a second switch for switching between an output stage of the medium-voltage inverter and an electric motor; a first initial charging unit disposed between and connected to the first switch and the medium-voltage inverter for limiting an initial excitation current to be applied to the phase-shift transformer; and a second initial charging unit disposed between and connected to an input stage of each power cell and the direct current (DC) link capacitor for limiting an initial charging current in the direct current (DC) link capacitor.

Abstract: The present disclosure relates to an initial charging system for a medium-voltage inverter and a method for controlling the system. The initial charging system comprises: a first switch for switching between a medium-voltage inverter and a power supply thereto; a second switch for switching between an output stage of the medium-voltage inverter and an electric motor; a first initial charging unit disposed between and connected to the first switch and the medium-voltage inverter for limiting an initial excitation current to be applied to the phase-shift transformer; and a second initial charging unit disposed between and connected to an input stage of each power cell and the direct current (DC) link capacitor for limiting an initial charging current in the direct current (DC) link capacitor.

Abstract: Disclosed herein is an apparatus for controlling DC link voltage in power cells of a medium-voltage inverter. The apparatus controls DC link voltage in single-phase I/O power cells in the medium-voltage inverter, by way of using a first average power based on a positive sequence voltage and a positive sequence current to output a first DC link voltage reference for controlling the average value of the DC link voltages, and using a second average power based on a negative sequence voltage and a positive sequence current or a positive sequence voltage and a negative sequence current to output a second DC link voltage reference for controlling an interphase DC link voltage.

Abstract: Disclosed herein is an apparatus for controlling DC link voltage in power cells of a medium-voltage inverter. The apparatus controls DC link voltage in single-phase I/O power cells in the medium-voltage inverter, by way of using a first average power based on a positive sequence voltage and a positive sequence current to output a first DC link voltage reference for controlling the average value of the DC link voltages, and using a second average power based on a negative sequence voltage and a positive sequence current or a positive sequence voltage and a negative sequence current to output a second DC link voltage reference for controlling an interphase DC link voltage.

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.

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.

Abstract: The present disclosure relates to an inverter with power cell of dual structure for use in high input voltage by changing a conventional 6-level cascaded H-bridge multilevel inverter to thereby reduce product development cost, manufacturing cost and volume of the product, the inverter including a first SMPS (Switching Mode Power Supply) connected to a first power cell region, a second SMPS connected to a second power cell region and a controller connecting the first and second SMPSs, where each phase is formed by serially connecting a plurality of power cells formed with a plurality of stages operated by receiving a power supplied from a phase shift transformer, and each of the plurality of power cells is mutually connected, and includes the first power cell region and the second power cell region independently operating.

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.

Abstract: The present disclosure relates to an inverter with power cell of dual structure for use in high input voltage by changing a conventional 6-level cascaded H-bridge multilevel inverter to thereby reduce product development cost, manufacturing cost and volume of the product, the inverter including a first SMPS (Switching Mode Power Supply) connected to a first power cell region, a second SMPS connected to a second power cell region and a controller connecting the first and second SMPSs, where each phase is formed by serially connecting a plurality of power cells formed with a plurality of stages operated by receiving a power supplied from a phase shift transformer, and each of the plurality of power cells is mutually connected, and includes the first power cell region and the second power cell region independently operating.

Abstract: The present disclosure relates to a multi-level inverter having a plurality of single inverter modules, the multi-level inverter including: a first controller providing a control signal to the multi-level inverter in response to voltage and frequency command based on detection of current and rotation speed of a motor; a second controller providing a control signal to the multi-level inverter in response to voltage and frequency command based on detection of current and rotation speed of a motor; and a plurality of single inverter modules converting an inputted AC power to DC power in response to the control signal from the first controller or the second controller, smoothing the converted DC power, converting the smoothed DC power to a three phase current in response to the control signal and outputting the three phase current.