Abstract: A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that is each connected to a plurality of cell strings; and an auxiliary power supply unit for supplying driving power to each of the plurality of converters, wherein the auxiliary power supply unit includes: a primary-side circuit for receiving the voltage of at least one output terminal from among output terminals of the plurality of cell strings; an insulation type converter for outputting voltage to secondary-side circuits according to the voltage of the primary-side circuit; and the plurality of secondary-side circuits for supplying the driving power to each of the plurality of converters by using the voltage output from the insulation type converter, wherein the plurality of converters have a multi-level structure.

Abstract: A power conversion device according to one embodiment of the present invention comprises: converters that are connected to respective cell strings; a voltage detection unit for detecting an input voltage and/or an output voltage of each of the plurality of converters; and a control unit which generates a control signal for each of the plurality of converters by using the voltage detected by the voltage detection unit and applies same, wherein the plurality of converters have a multi-level structure.

Abstract: In an alloy metal plate according to an embodiment, diffraction intensity of a (111) plane of the alloy metal plate is defined as I (111), diffraction intensity of a (200) plane of the alloy metal plate is defined as I (200), diffraction intensity of a (220) plane of the alloy metal plate is defined as I (220), a diffraction intensity ratio of I (200) is defined by the following Equation 1, and a diffraction intensity ratio of I (220) is defined by the following Equation 2. At this time, the A is 0.5 to 0.6, the B is 0.3 to 0.5, and the value A may be larger than a value B. A=I(200)/{I(200)+I(220)+I(111)}??[Equation 1] The diffraction intensity ratio of I (220) is defined by the following Equation 2.

Abstract: A camera module according to an embodiment includes a first driving part disposed on a lower surface of an image sensor substrate; and a second driving part disposed on a lower surface of the housing to face a lower surface of the first driving part, wherein the first driving part comprises a first driving part of a first group configured to move the image sensor substrate in a first direction with respect to the lens barrel; and a second driving part of a second group configured to move the image sensor substrate in a second direction intersecting the first direction with respect to the lens barrel, wherein the second driving part comprises a second driving part of a first group disposed overlapping the first driving part of the first group in a vertical direction; and a second driving part of a second group disposed overlapping the first driving part of the second group in the vertical direction.

Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.

Abstract: Proposed are a test device and a manufacturing method of the test device capable of testing a test object that is provided with an electrode which has a size and/or a pitch distance ranging from 1 to 100 micrometers (?m).

Abstract: A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that are each connected to a plurality of cell strings; and a plurality of auxiliary power supply units for supplying driving power to each of the plurality of converters by using the voltage output from each cell string, wherein the plurality of converters have a multi-level structure.

Abstract: An encapsulant for encapsulating perovskite to prevent lead leakage therefrom, a method for encapsulating perovskite to prevent lead leakage therefrom, and a perovskite photoactive device including the encapsulant are disclosed. The encapsulant for encapsulating perovskite may contain a crown ether-based compound having a benzene ring substituted with an alkyl group. The perovskite encapsulating method may include coating, on a perovskite layer, a solution in which a crown ether-based compound having a benzene ring substituted with an alkyl group is dissolved in an organic solvent. The perovskite photoactive device includes an encapsulant encapsulating the perovskite layer to prevent the lead leakage therefrom.

Abstract: A power conversion apparatus according to an embodiment of the present invention comprises: a plurality of converters connected to a plurality of cell strings, respectively, and one control unit for applying a control signal to each of plurality of converters, wherein the plurality of converters constitute a multi-level.

Abstract: A DC-DC converter including a bridge circuit unit electrically connected to a DC link capacitor and comprising at least one full bridge circuit comprising switching elements; a sensing unit for sensing a voltage between the bridge circuit unit and the DC link capacitor; and a control unit for controlling the bridge circuit unit according to the sensed voltage, wherein a power of one end of a battery is controlled to a droop curve-shaped power value according to the sensed voltage, wherein the DC-DC converter further comprises an inductor and a capacitor electrically connected to the bridge circuit unit, the inductor is connected to one end of a battery, the capacitor is connected to one end of the battery and a node on the other end of the battery, and the node is connected to and arranged between the inductor and the battery.

Abstract: Provided are a fruit bag and a manufacturing method thereof, for example, a fruit bag for a fruit of a fruit tree may include: an inner surface configured to surround the fruit; an outer surface configured to exposed to an outside; an opening formed in a predetermined size at the same position of the inner surface and the outer surface; a nano membrane generated by an electrospinning of a polymer solution as a raw material for nano-fibers; a non-woven fabric for strength reinforcement laminated on one or both sides of the nano membrane and a nano-lamination film covering the entire surface of the opening thereby while maintaining excellent air permeability, it is possible to properly maintain the humidity and against various external environmental effects.

Abstract: A DC-DC converter includes a bridge circuit electrically connected to a DC link capacitor; an inductor and a capacitor electrically connected to the bridge circuit, in which the inductor is connected to a first end of a battery, and the capacitor is connected to the first end and a second end of the battery; a sensor configured to sense a voltage between the bridge circuit and the DC link capacitor; and a controller configured to control switching operations of the bridge circuit so that a power output by the DC-DC converter and supplied to the first end of the battery has a droop curve-shaped power value according to the sensed voltage.

Abstract: A magnetic part according to an embodiment of the present invention comprises: a printed circuit board; a pattern coil formed on at least a surface of the printed circuit board; a core passing through the printed circuit board; and at least one winding coil disposed on at least a surface from among one surface and the other surface of the printed circuit board.

Abstract: According to an aspect of the disclosure, a game providing method is provided. The game providing method includes: displaying a game interface comprising a plurality of blocks; detecting a first interaction on a first block among the plurality of blocks; specifying the first block as a trigger block in response to the first block; detecting a second interaction on a second block adjacent to the first block; and performing, based on characteristic of the second interaction, either one of switching positions between the first block and the second block, and specifying the second block as the trigger block.

Abstract: A printed circuit board module comprises: a first printed circuit board; a second printed circuit board arranged on one surface of the first printed circuit board; a third printed circuit board arranged on the other surface of the first printed circuit board; and a core passing through the first printed circuit board to the third printed circuit board, wherein the second printed circuit board includes a first coil, the third printed circuit board includes a second coil, and the cross-sectional area of the second printed circuit board and the third printed circuit board is less than the cross-sectional area of the first printed circuit board.

Abstract: The present invention relates to a duct module and a vehicle seat including a duct module. According to an exemplary embodiment of the present invention, the duct module includes a duct, an air intake module and a sterilization module. The duct may have a duct air passage formed therein and include a first rigid portion, a second rigid portion, and a flexible portion disposed between the first rigid portion and the second rigid portion. The air intake module may be connected to the first rigid portion of the duct and guide external air into the duct air passage. Further, the sterilization module may be disposed in the duct to emit sterilization light into the duct air passage. The duct air passage may be formed as an internal space of the first rigid portion, the second rigid portion and the flexible portion.

Abstract: Provided are a fruit bag and a method thereof, for example, a fruit bag for a fruit of a fruit tree may include: an inner surface configured to surround the fruit; an outer surface configured to exposed to an outside; an opening formed in a predetermined size at the same position of the inner surface and the outer surface; a nano membrane generated by an electrospinning of a polymer solution as a raw material for nano-fibers; a non-woven fabric for strength reinforcement laminated on one or both sides of the nano membrane and a nano-lamination film covering the entire surface of the opening thereby while maintaining excellent air permeability, it is possible to properly maintain the humidity and against various external environmental effects.

Abstract: A DC-DC converter includes a bridge circuit electrically connected to a DC link capacitor; an inductor and a capacitor electrically connected to the bridge circuit, in which the inductor is connected to a first end of a battery, and the capacitor is connected to the first end and a second end of the battery; a sensor configured to sense a voltage between the bridge circuit and the DC link capacitor; and a controller configured to control switching operations of the bridge circuit so that a power output by the DC-DC converter and supplied to the first end of the battery has a droop curve-shaped power value according to the sensed voltage.

Abstract: According to an aspect of the disclosure, a game providing method is provided. The game providing method includes: displaying a game interface comprising a plurality of blocks; detecting a first interaction on a first block among the plurality of blocks; specifying the first block as a trigger block in response to the first block; detecting a second interaction on a second block adjacent to the first block; and performing, based on characteristic of the second interaction, either one of switching positions between the first block and the second block, and specifying the second block as the trigger block.

Abstract: Voice recognition image feedback providing system and method capable of providing conveniently various services to a user is disclosed. A voice recognition image feedback device in the system comprises a voice recognition unit configured to recognize user's voice, an image feedback unit configured to output an image corresponding to the voice in a direction where the voice is inputted and a control unit configured to control the voice recognition unit and the image feedback unit. Here, wherein the image is outputted to a user peripheral location area so that the image is shown to the user, the user peripheral location area means an area having a radius of 3 meter based on a point at which the user locates, and at least part of the image is shown in the area having the radius of 3 meter.