摘要:
Provided are a power supply device and a method of controlling the same. The power supply device includes: a power factor corrector which corrects a power factor of an initial power; a standby power supply unit which is connected to the power factor corrector, the standby power supply unit including a transformer which converts an input power received from the power factor corrector; a sensor which detects a level of an induced power corresponding to the input power; and a power supply controller which determines whether the level of the induced power exceeds a critical value, activates the power factor corrector to correct the power factor of the initial power if the level of the induced power exceeds the critical value, and supplies a driving power to the system based on the level of the induced power.
摘要:
A display device including a front cover and a rear cover coupled to each other in order to receive a display panel, drive board and power supply board, is provided. A shield case mounted on the power supply board and coupled to the rear cover removes noise conducted to the rear cover. The shield case serves to disperse and absorb noise conducted to the rear cover, enabling removal of the noise. A frame ground terminal of a socket is connected to the shield case in order to allow the shield case to be used as a ground, resulting in an increased ground area. Further, the shield case may reduce radiation noise and conduction noise generated during driving of a plurality of drive units provided in the display device.
摘要:
A display apparatus and a power supplying method are provided. The display apparatus includes a signal receiver which receives a video signal; a signal processor which processes the video signal; a display unit which displays an image based on a video signal processed by the signal processor; and a power supply which converts an alternating current (AC) voltage into a direct current (DC) voltage and supplies an operation voltage to the display unit, the power supply including: a power factor correction (PFC) unit which adjusts the DC voltage and corrects a power factor of the power supply; a detector which detects a plurality of voltages in the power supply and outputs a common detection signal indicating whether at least one of the plurality of voltages is abnormal; and a controller which receives the common detection signal, and controls the PFC unit based on the common detection signal.
摘要:
A display device including a front cover and a rear cover coupled to each other in order to receive a display panel, drive board and power supply board, is provided. A shield case mounted on the power supply board and coupled to the rear cover removes noise conducted to the rear cover. The shield case serves to disperse and absorb noise conducted to the rear cover, enabling removal of the noise. A frame ground terminal of a socket is connected to the shield case in order to allow the shield case to be used as a ground, resulting in an increased ground area. Further, the shield case may reduce radiation noise and conduction noise generated during driving of a plurality of drive units provided in the display device.
摘要:
Disclosed herein is an inductor core usable with an interleaved Power Factor Correction (PFC) circuit. The inductor core for a power factor correction circuit, the inductor core may include: a first leg on which a first inductor is wound; a second leg on which a second inductor is wound, wherein the first and second inductors are alternately operable in an interleaved manner; and a third leg provided between the first leg and the second leg, wherein the third leg has a different shape from that of the first leg and the second leg.
摘要:
A transformer for an LLC resonant converter having a reduced size and reduced material costs is disclosed. The transformer includes a pair of cores and a bobbin provided with a through hole formed therethrough. Each core includes a first leg and a second leg such that the first legs of the cores are opposite from and are connected to each other within the through hole. The second legs of the cores are opposite each other and are connected to each other at the outside of the bobbin. The bobbin includes a first winding unit on which a primary coil is wound and a second winding unit on which a secondary coil is wound.
摘要:
An apparatus for supplying multi-output power is provided. The apparatus for supplying multi-output power includes a an input power unit which generates an LLC resonance signal using direct current (DC) power, a main output power unit which outputs a main voltage induced by the LLC resonance signal, a plurality of output power units which output secondary voltages induced by the LLC resonance signal at different level of voltages, and a first output power unit of the plurality of output power units outputs a respective one of the secondary voltages induced by the LLC resonance signal at a predetermined level of voltage using a different one of the secondary voltages output from a second output power unit of the plurality of output power units.
摘要:
An apparatus for supplying multi-output power is provided. The apparatus for supplying multi-output power includes a an input power unit which generates an LLC resonance signal using direct current (DC) power, a main output power unit which outputs a main voltage induced by the LLC resonance signal, a plurality of output power units which output secondary voltages induced by the LLC resonance signal at different level of voltages, and a first output power unit of the plurality of output power units outputs a respective one of the secondary voltages induced by the LLC resonance signal at a predetermined level of voltage using a different one of the secondary voltages output from a second output power unit of the plurality of output power units.
摘要:
A multi output power supply is provided. The power supply includes an input power unit which generates an LLC resonance signal using DC power, a primary output power unit which outputs a first output voltage based on a first voltage induced in response to the LLC resonance signal, a secondary output power unit which outputs a second output voltage based on a second voltage induced in response to the LLC resonance signal, and a power control unit which controls the input power unit to change the LLC resonance signal so that the first output voltage has a preset level, and controls the secondary output power unit so that the second output voltage has a preset level irrespective of a change in a level of the first output voltage.
摘要:
A display apparatus and a power supplying method are provided. The display apparatus includes a signal receiver which receives a video signal; a signal processor which processes the video signal; a display unit which displays an image based on a video signal processed by the signal processor; and a power supply which converts an alternating current (AC) voltage into a direct current (DC) voltage and supplies an operation voltage to the display unit, the power supply including: a power factor correction (PFC) unit which adjusts the DC voltage and corrects a power factor of the power supply; a detector which detects a plurality of voltages in the power supply and outputs a common detection signal indicating whether at least one of the plurality of voltages is abnormal; and a controller which receives the common detection signal, and controls the PFC unit based on the common detection signal.