Abstract: A coil component includes a body including a first surface and a second surface opposing in a first direction, and a third surface and a fourth surface opposing in a second direction; a coil disposed in the body; a first lead-out electrode connected to an external end of the coil and drawn out to the first surface; a second lead-out electrode connected to an internal end of the coil and drawn out to the second surface; a first external electrode disposed on the third surface, extending to the first surface and connected to the first lead-out electrode; and a second external electrode disposed on the third surface, extending to the second surface and connected to the second lead-out electrode, wherein a thickness of each of the first and second lead-out electrodes in the second direction is smaller than a thickness of the coil in the second direction.

Abstract: A coil component includes a coil component includes a body including a first surface and a second surface opposing each other in a first direction; a coil disposed in the body and including a plurality of coil layers; an insulating layer disposed in each of regions between the plurality of coil layers; an external electrode disposed on the first surface of the body; and a connection portion disposed in the body, connecting one of the plurality of coil layers to the external electrode, and having one surface in contact with the one of the plurality of coil layers and the other surface in contact with the external electrode. The connection portion includes a fusion portion disposed on an end thereof to be in contact with the one of the plurality of coil layers.

Abstract: A coil component includes a body having a first surface, a second surface opposing the first surface in a first direction, and side surfaces connecting the first surface and the second surface to each other, a support member disposed in the body, a coil disposed on each of one surface of the support member and the other surface of the support member opposing the one surface in the first direction, including first and second lead-out portions respectively extending to a first side surface and a second side surface of the body opposing each other in a second direction, and a first dummy lead-out portion disposed on the other surface of the support member, and connected to the first lead-out portion. W2/W1 satisfies 0.3 or more and 0.8 or less, W1 is a width of the first lead-out portion, W2 is a width of the first dummy lead-out portion.

Abstract: A coil component, may include: a body having a first surface and a second surface facing each other in a first direction; a support member disposed within the body; a coil disposed on the support member; an external electrode disposed on the first surface of the body; and a connection portion disposed within the body to connect the coil and the external electrode, the connection portion having one surface in contact with the coil and another surface in contact with the external electrode, in which the connection portion may include a fused portion formed at an end in contact with the coil.

Abstract: A positive electrode active material for an all-solid-state battery of the present exemplary embodiments may include: a core including a lithium nickel-based oxide; a first coating layer containing cobalt which is placed on a surface of the core; and a second coating layer containing a lithium transition metal oxide which is placed on a surface of the first coating layer.

Abstract: A motor driving apparatus includes a first module on which an inverter circuit configured to supply a driving current to a motor is mounted, a second module on which a control circuit configured to control the inverter circuit is mounted, and a third module on which a power circuit configured to supply direct-current (DC) power to at least one of the inverter circuit and the control circuit. The first module and the second module are attachable to and detachable from the third module.

Abstract: A method and an apparatus for controlling wireless power transmission are provided. An apparatus for controlling wireless power transmission includes a controller configured to determine an output voltage of a power factor correction unit based on charging information of a battery, the power factor correction unit configured to correct an input voltage into the determined output voltage, and output a variable voltage, and a resonance unit configured to transmit power converted from the variable voltage to a wireless power reception apparatus.

Abstract: Disclosed herein are a display device which exhibits superior surface flatness of an upper electrode substrate and excellent sealing effects by performing sealing such that an end of a barrier formed in a front electrode is inserted into the upper electrode having a gel-state, and a method of producing the same. The display device includes a first electrode module comprising a first electrode, a second electrode module including a second electrode, the second electrode module facing the first electrode module, a plurality of barriers formed on the first electrode module, each barrier having an end inserted into the second electrode, a plurality of cavities formed by the first electrode module and the barriers, and an electric field-dependent layer formed in each of the cavities, the electric field-dependent layer having properties changed by an electric field applied between the first electrode module and the second electrode module.

Abstract: A motor driving apparatus includes a first module on which an inverter circuit configured to supply a driving current to a motor is mounted, a second module on which a control circuit configured to control the inverter circuit is mounted, and a third module on which a power circuit configured to supply direct-current (DC) power to at least one of the inverter circuit and the control circuit. The first module and the second module are attachable to and detachable from the third module.

Abstract: A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result.

Abstract: An image forming apparatus as provided includes: a heating roller heated using a first heater unit disposed in the center thereof and second heater units disposed on both sides of the first heater unit; a pressure roller in pressing contact with the heating roller to form a nip; first and second sensors for detecting the temperature of a central area of the heating roller the temperature of a side area of the heating roller, respectively; and a controller for individually controlling the first and second heater units according to the respective temperatures measured by the first and second sensors when the temperature measured by the second sensor is lower than a predetermined first temperature, and commonly controlling the first and second heater units according to the temperature measured by the first sensor when the temperature measured by the second sensor is equal to or higher than the predetermined first temperature.

Abstract: A display device which may operate as a reflective display device which uses external light without separate power supply at an illumination level equal to or greater than a certain illumination level, and which may operate as a transmissive display device which uses internal light at an illumination level less than the certain illumination level to provide a clear image in an outdoor environment and a dark indoor environment. Power consumption may be minimized by automatically switching the display mode depending on the illumination level.

Abstract: A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result.

Abstract: A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result.

Abstract: A method and an apparatus for controlling wireless power transmission are provided. An apparatus for controlling wireless power transmission includes a controller configured to determine an output voltage of a power factor correction unit based on charging information of a battery, the power factor correction unit configured to correct an input voltage into the determined output voltage, and output a variable voltage, and a resonance unit configured to transmit power converted from the variable voltage to a wireless power reception apparatus.

Abstract: An image forming apparatus as provided includes: a heating roller heated using a first heater unit disposed in the center thereof and second heater units disposed on both sides of the first heater unit; a pressure roller in pressing contact with the heating roller to form a nip; first and second sensors for detecting the temperature of a central area of the heating roller the temperature of a side area of the heating roller, respectively; and a controller for individually controlling the first and second heater units according to the respective temperatures measured by the first and second sensors when the temperature measured by the second sensor is lower than a predetermined first temperature, and commonly controlling the first and second heater units according to the temperature measured by the first sensor when the temperature measured by the second sensor is equal to or higher than the predetermined first temperature.

Abstract: A method and an apparatus for controlling wireless power transmission are provided. An apparatus for controlling wireless power transmission includes a controller configured to determine an output voltage of a power factor correction unit based on charging information of a battery, the power factor correction unit configured to correct an input voltage into the determined output voltage, and output a variable voltage, and a resonance unit configured to transmit power converted from the variable voltage to a wireless power reception apparatus.

Abstract: Disclosed herein are a display device which exhibits superior surface flatness of an upper electrode substrate and excellent sealing effects by performing sealing such that an end of a barrier formed in a front electrode is inserted into the upper electrode having a gel-state, and a method of producing the same. The display device includes a first electrode module comprising a first electrode, a second electrode module including a second electrode, the second electrode module facing the first electrode module, a plurality of barriers formed on the first electrode module, each barrier having an end inserted into the second electrode, a plurality of cavities formed by the first electrode module and the barriers, and an electric field-dependent layer formed in each of the cavities, the electric field-dependent layer having properties changed by an electric field applied between the first electrode module and the second electrode module.

Abstract: A power supply includes a rectifier for rectifying an AC line voltage to generate a link voltage, a link capacitor for charging the link voltage, a control switch for controlling charge of the link capacitor, a converter for converting the link voltage to a DC voltage, and a switch controller. When the converter operates in a standby operation mode, the switch controller controls on-off of the control switch through a pulse signal having an on-time determined based on a peak value of a detected AC line voltage.

Abstract: A fusing device and an image forming apparatus having the same are provided. The fusing device includes a position regulating device to regulate a position of a side frame which rotatably supports a fusing belt, thereby fixing a position of a fusing nip defined between the fusing belt, inside of which a heat source is placed, and a pressure roller arranged to face the fusing belt. The fusing device prevents shift of a recording medium delivery path due to deformation of the pressure roller.