Abstract: A power inlet socket coupled to a power delivering member of an electronic device to supply power from an external power plug to the electronic device includes a socket body comprising a power plug connector connected to the external power plug and a power delivering member connector connected to the power delivering member; three terminal pins, each terminal pin comprises a projecting pin extending from the power plug connector in parallel with one another to correspond to a terminal of the external power plug and a connection terminal exposed to the power delivering member connector; and an insulating barrier provided between at least a pair of connection terminals of the three terminal pins to cut off an electric current flowing among the connection terminals. Thus, the insulating distance of power inlet socket is improved.

Abstract: Disclosed is a display apparatus including an image processor configured to process an image signal, a display configured to display an image based on the image signal, a controller configured to control the display of the image, and a power supply configured to supply actuating power to the controller, the power supply including a power circuit configured to receive alternating current (AC) power and output the actuating power by a switching mode, a noise reducer configured to reduce high-frequency noise due to the switching mode, and a discharging circuit configured to supply a residual voltage of the noise reducer to the power circuit when the AC power is input, and discharge the residual voltage of the noise reducer when the AC power is shut off. Thus, it is possible to decrease power consumption caused when the residual voltage of the noise reducer is discharged.

Abstract: An apparatus and method for supplying power to an electronic device are provided. The apparatus includes a power converter, a main converter, and a sub converter. The power converts includes a rectifier configured to convert alternating current (AC) power into direct current (DC) power, and a smoothing condenser connected to an output terminal of the rectifier. The main converter is connected with an output terminal of the power converter and configured to supply power to a first component of the electronic device. The sub converter is connected with the output terminal of the power converter, and configured to supply power to components other than the first component, and to stop supplying the power in response to a momentary power interruption or a voltage dip occurring in the AC power.

Abstract: An electromagnetic induction device, and a power supply apparatus and a display apparatus having the same are disclosed, the electromagnetic induction device comprising: a substrate layer comprising at least one substrate configured to be laid one upon another and a thin-film coil pattern, which is formed on at least one of both surfaces of the substrate and through which an electric current of a signal flows, the at least one substrate having an opening provided at an inner area of the thin-film coil pattern; a core configured to have a shape corresponding to a circulation path of magnetic flux generated by change in an electric current flowing in the thin-film coil pattern, and arranged to penetrate the inner area of the thin-film coil pattern through the opening of the substrate layer; and a heat dissipation layer disposed on one surface of the substrate, the heat dissipation layer configured to dissipate heat from at least one of the substrate layer and the core.

Abstract: A light emitting diode driver (LED) circuit and method are provided. The light emitting diode driver circuit includes an LED array; a LED driving circuit configured to supply current to the LED array through switching operations of a plurality of switches; and a driving controller configured to control the plurality of switches to supply current, corresponding to a dimming signal, to the LED array using a clock signal of a preset frequency. The driving controller may be further configured to control the plurality of switches to alternately perform switching operations.

Abstract: A power supply apparatus and a method for controlling the power supply apparatus are provided. The power supply apparatus drives an electronic apparatus which may operate in a first mode or a second mode. The power supply includes an input voltage generator that generates an input voltage; an output voltage generator that generates a first output voltage by using the input voltage, and supplies the output voltage to the electronic apparatus; and a detector that determines the mode of the electronic apparatus by detecting a load of the electronic apparatus, and outputs a control signal to the output voltage generator in response to the mode of the electronic apparatus changing from the first mode to the second mode. In response to receiving the control signal, the output voltage generator generates a second output voltage that corresponds to the second mode.

Abstract: A power supply circuit and method for driving an electronic device that operates in a first mode or a second mode is provided. The power supply circuit includes a pulse width modulation (PWM) controller configured to convert an input voltage to an output voltage, and a driving circuit that includes a switching element whose switching state is controlled in accordance with a mode change signal corresponding to the first and second modes. The driving circuit is configured to drive the PWM controller by switching off the switching element and supplying a first voltage to the PWM controller, in response to the mode change signal indicating that the electronic device operates in the first mode. When it is indicated that the electronic device operates in the second mode, the driving circuit switches on the switching element and supplies a second voltage to the PWM controller through the switching element.

Abstract: A display apparatus in which a height of an AC socket protruding to a rear side of a printed circuit board is reduced and a power cord is provided to be in close contact with a product to provide a display apparatus in which a creeping distance is increased to prevent the printed circuit board from being damaged by a high voltage or a stroke of lightning.

Abstract: A power circuit part, a power control method and a display apparatus having the same control an output DC voltage supplied as operating power to elements such as a display to be variably output at different levels according to a voltage level of input AC power. The power circuit part includes a rectifier configured to rectify a current of an input alternating current (AC) power into a direct current (DC); and a power factor corrector configured to output a DC voltage output set at a DC voltage level corresponding to an AC voltage level of the input AC power, and supplies the DC voltage as operating power to the electronic apparatus, wherein the DC voltage level is selected from a plurality of target DC voltage levels each corresponding to at least one of a plurality of AC voltage level ranges.

Abstract: A power supply and method of controlling power supplied to a light source are disclosed. The power supply includes a dimming-control voltage generator configured to generate a dimming-control voltage based on first and second adjustment values; a dimming controller configured to output a dimming control signal for controlling analog dimming and pulse width modulation (PWM) dimming of a light source based on the dimming-control voltage; and a driver configured to control the analog dimming and the PWM dimming of the light source based on the dimming control signal.

Abstract: Disclosed is a display apparatus including an image processor configured to process an image signal, a display configured to display an image based on the image signal, a controller configured to control the display of the image, and a power supply configured to supply actuating power to the controller, the power supply including a power circuit configured to receive alternating current (AC) power and output the actuating power by a switching mode, a noise reducer configured to reduce high-frequency noise due to the switching mode, and a discharging circuit configured to supply a residual voltage of the noise reducer to the power circuit when the AC power is input, and discharge the residual voltage of the noise reducer when the AC power is shut off. Thus, it is possible to decrease power consumption caused when the residual voltage of the noise reducer is discharged.

Abstract: Provided are a display system including a plurality of display apparatuses and a control method of the same. The display system including a plurality of display apparatuses comprises a first display apparatus configured to display an image to constitute a multi-screen, and receive power from a single power source; and a second display apparatus configured to display an image to constitute the multi-screen, and receive power from the single power source, wherein the second display apparatus starts operation after the first display apparatus enters a normal driving state.

Abstract: An apparatus and method for supplying power to an electronic device are provided. The apparatus includes a power converter, a main converter, and a sub converter. The power converts includes a rectifier configured to convert alternating current (AC) power into direct current (DC) power, and a smoothing condenser connected to an output terminal of the rectifier. The main converter is connected with an output terminal of the power converter and configured to supply power to a first component of the electronic device. The sub converter is connected with the output terminal of the power converter, and configured to supply power to components other than the first component, and to stop supplying the power in response to a momentary power interruption or a voltage dip occurring in the AC power.

Abstract: Disclosed are a two-stage noise filter, in which two filters are integrated, and an electronic device including the same. The two-stage noise filter includes a core configured to include a primary side and a secondary side opposite to the primary side; a first filter configured to include a first coil wound on the primary side of the core and a second coil wound on the secondary side of the core; a second filter configured to include a third coil wound on the primary side of the core in series with the first coil and a fourth coil wound on the secondary side of the core in series with the second coil; and an impedance balancer configured to keep a balance of impedance between the first and second filters.

Abstract: A display apparatus, a power supply and a power supply method are disclosed. A power supply for a display apparatus includes a switching driver configured to perform a switching operation and output an operation voltage; a first charger/discharger configured to set timing of the switching operation; and a controller configured to control the switching driver to disable the switching operation until a voltage previously charged in the first charger/discharger is discharged up to a first voltage, when the display apparatus is in a power saving mode.

Abstract: A power cable, and an imaging apparatus and an electronic device including the power cable are provided. Power and grounding of the imaging apparatus and the electronic device may be controlled even while the power cable is plugged into a power outlet. The power cable includes a power input including a first input terminal, a second input terminal, and a first ground terminal; a power output including a first output terminal, a second output terminal, and a second ground terminal connected to the first input terminal, the second input terminal, and the first ground terminal, respectively; a first switch that may disconnect the first input terminal from the first output terminal; and a second switch that may disconnect the first ground terminal from the second ground terminal.

Abstract: A power supply, a power control method and a display apparatus having the same, for controlling a standby mode, are provided. The power supply of an electronic apparatus includes: a rectifier configured to rectify a current of alternating current (AC) power input as input power, into a direct current (DC); a power factor correction (PFC) circuit configured to correct a power factor of a DC voltage converted by the rectifier; a switching circuit configured to convert the DC voltage output by the PFC circuit into a predetermined operating voltage and a standby voltage and supply the operating voltage and the standby voltage to the electronic apparatus; and an output controller configured to control the PFC circuit and the switching circuit to convert the DC voltage into the predetermined operating voltage and standby voltage by the switching circuit and supply the operating voltage and the standby voltage to the electronic apparatus.

Abstract: A power supply apparatus and a display apparatus are provided. The power supply apparatus including: a rectifier configured to receive alternating current (AC) power to output a rectified current; a first converter configured to perform a switching operation with respect to the rectified current to output a first output voltage; and a controller configured to control the first converter in order to perform the switching operation so that the first output voltage reaches a first target value in a first period of the input AC current, and not to perform the switching operation in a second period of the input AC power.

Abstract: 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.

Abstract: A power circuit part, a power control method and a display apparatus having the same control an output DC voltage supplied as operating power to elements such as a display to be variably output at different levels according to a voltage level of input AC power. The power circuit part includes a rectifier configured to rectify a current of an input alternating current (AC) power into a direct current (DC); and a power factor corrector configured to output a DC voltage output set at a DC voltage level corresponding to an AC voltage level of the input AC power, and supplies the DC voltage as operating power to the electronic apparatus, wherein the DC voltage level is selected from a plurality of target DC voltage levels each corresponding to at least one of a plurality of AC voltage level ranges.