Abstract: There are provided a light driving apparatus capable of being commonly used in various types of dimmers, and a driving method therefor. The light driving apparatus includes: a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supply of power from the driving unit.

Abstract: Provided is a power converter, which includes: a power supply unit provided with a first wiring and a second wiring and configured to apply a driving voltage to a load, the power supply unit being configured to adjust a magnitude of the driving voltage in response to a turn ratio of the first wiring to the second wiring; and control unit configured to output a control signal for control the turn ratio of the first wiring to the second wiring based on the magnitude of the driving voltage.

Abstract: A display apparatus and a method for inputting characters thereof are provided. The display apparatus includes: a display unit which displays a character input UI including a plurality of character items, each character item comprising a border and a character located in the border, an input unit which receives a user command to select one of the plurality of character items, and, a controller which, if a first character item is selected from among the plurality of character items through the input unit, controls the display unit to display at least one recommended character item associated with the first character to partially overlap with character items adjacent to the first character item. Accordingly, a user can input characters more easily using the character input UI.

Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.

Abstract: There are provided a dimming control apparatus, a lighting system driving apparatus, and a dimming control method, the dimming control apparatus including a voltage converting unit converting a dimming signal from a dimmer into dimming voltage, an analog-to-digital (A/D) converting unit converting the dimming voltage into a digital dimming value, a dimming setting unit determining whether or not the digital dimming value is included in a preset dimming value range, and when the digital dimming value is not included in the preset dimming value range, resetting the dimming value range so as to allow the digital dimming value to be included in the reset dimming value range, a memory unit storing a dimming control value corresponding to the digital dimming value, and a dimming control unit generating a dimming control signal based on the dimming control value corresponding to the digital dimming value from the A/D converting unit.

Abstract: A method and apparatus for processing a gesture input of a display apparatus is provided. The method includes setting a gesture input mode based on an operational situation of the display apparatus, displaying information about the set gesture input mode on a screen of the display apparatus, and in response to receiving an input that corresponds to the set gesture input mode, performing a control operation with respect to the screen.

Abstract: Provided are an apparatus and a method for managing a stationary fuel cell system, and more particularly, an apparatus and a method for managing a stationary fuel cell system capable of optimally maintaining a driving method based on environmental information and product information.

Abstract: A manufacturing system and method of an membrane electrode assembly (MEA) for a fuel cell is provided which increases performance and durability of an MEA and ensures productivity of the MEA therein. In particular, electrodes and an electrolyte membrane are bonded together and the membrane electrode assembly manufactured in the bonding process is pressed at a predetermined temperature.

Abstract: A method for providing a user interface (UI) includes displaying a character input UI, receiving a command to select a specific character on the character input UI, determining a character input mode from among a recommended character input mode and an accent mark character input mode based on the command, and displaying at least one of a first character input UI and a second character input UI according to the determined character input mode, wherein the first character input UI comprises recommended character items and the second character input UI comprises accent mark character items.

Abstract: A display apparatus is provided. The display apparatus includes: a display configured to display a virtual keyboard; an inputter configured to receive a stroke input on a key on the virtual keyboard; and a controller configured to display a character which corresponds to the key in an input window in response to the stroke input being received, and configured to perform a control operation to suggest at least one character that is likely to follow a character which corresponds to the key and display the at least one suggested character. The at least one suggested character is displayed so as not to overlap a character of a basic key on the virtual keyboard.

Abstract: A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane.

Abstract: There are provided a feedback control circuit and power supply apparatus using dimming adjustment and forward voltage control. The feedback control circuit includes: a voltage detection unit detecting an output voltage from a transformer and providing a detection voltage; a dimming unit generating a varied dimming signal; and a feedback circuit unit comparing the detection voltage with a reference voltage varied according to the dimming signal and providing a feedback voltage for controlling a power transmission ratio of the transformer.

Abstract: There is provided a voltage control circuit that is applicable to a LED device, a power supply or the like. The voltage control circuit includes: a voltage dividing unit dividing a supply voltage into a first voltage and a second voltage different from each other; a shunt regulator adjusting the first voltage according to the second voltage; and an output circuit unit outputting the voltage regulated by the shunt regulator.

Abstract: There are provided a dimming control apparatus, a lighting system driving apparatus, and a dimming control method, the dimming control apparatus including a voltage converting unit converting a dimming signal from a dimmer into dimming voltage, an analog-to-digital (A/D) converting unit converting the dimming voltage into a digital dimming value, a dimming setting unit determining whether or not the digital dimming value is included in a preset dimming value range, and when the digital dimming value is not included in the preset dimming value range, resetting the dimming value range so as to allow the digital dimming value to be included in the reset dimming value range, a memory unit storing a dimming control value corresponding to the digital dimming value, and a dimming control unit generating a dimming control signal based on the dimming control value corresponding to the digital dimming value from the A/D converting unit.

Abstract: There are provided a light driving apparatus capable of being commonly used in various types of dimmers, and a driving method therefor. The light driving apparatus includes: a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supply of power from the driving unit.

Abstract: A character correcting method of a display apparatus includes displaying a sentence including at least one word in a character input window; displaying, if one of the at least one word is selected, a first user interface (UI) in which the at least one selected word is displayed by a character unit; and, displaying, if one of a plurality of characters displayed in the first UI is selected, a second UI around the selected character, the second UI is configured to edit the selected character.

Abstract: A display apparatus and a method for inputting characters thereof are provided. The display apparatus includes: a display unit which displays a character input UI including a plurality of character items, each character item comprising a border and a character located in the border, an input unit which receives a user command to select one of the plurality of character items, and, a controller which, if a first character item is selected from among the plurality of character items through the input unit, controls the display unit to display at least one recommended character item associated with the first character to partially overlap with character items adjacent to the first character item. Accordingly, a user can input characters more easily using the character input UI.

Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.

Abstract: Provided are an apparatus and a method for managing a stationary fuel cell system, and more particularly, an apparatus and a method for managing a stationary fuel cell system capable of optimally maintaining a driving method based on environmental information and product information.