Samsung Electronics Co., Ltd.

Won-myung Woo

Jin-hyung Lee

Sung-yong Joo

Gil-yong Chang

Sung-Bum Jung

Kyoung-geun Lee

Yong-Joo Lee

Se-ra Lee

Shin-ho Kang

Seung-myen Lee

Ka-san Ha

A display apparatus includes a main body; a power receiver configured to receive power from a wireless power transmission apparatus positioned outside of the main body; a driver configured to move the power receiver with respect to the main body; and a controller configured to control the driver to move the power receiver toward the main body or toward the wireless power transmission apparatus.

Display apparatus, display system, and driving method of the same

A resonant converter, a power supply and a power controlling method thereof are provided. The power supply includes a resonant converter which includes a square wave generator configured to alternately turn on and off first and second switches according to a frequency to generate a square wave, a resonant wave generator configured to generate a resonant wave corresponding to the square wave and a rectifier configured to output a voltage corresponding to the resonant wave; and a controller configured to control a frequency modulation of the resonant converter, wherein the controller includes a variable switching circuit configured to increase the frequency of the resonant converter in response to the resonant converter entering a capacitive mode.

Resonant converter, power supply and power controlling method thereof

Disclosed is an apparatus for supplying power to a device. The apparatus includes a transformer configured to output a predetermined voltage to a device varying in load; a switch configured to switch on and off the voltage output from the transformer in accordance with pulse width modulation (PWM) signals; a PWM signal supplier configured to supply the PWM signal to the switch; a feedback circuit which detects the output from the transformer and applies a control signal to the PWM signal supplier; and an output voltage controller which detects a load current of the device, and adjusts the control signal of the feedback circuit by adjusting the output detected by the feedback circuit in accordance with the detected load current.

Power supplying apparatus and method for supplying power to the varying load

An electronic apparatus and a power controlling method thereof are provided. The electronic apparatus includes a system unit supplied with power to conduct an operation, and a power supply unit including a power control unit controlling output of standby power, and supplying the standby power to the system unit. The power control unit includes a pulse width modulation (PWM) generation unit generating a PWM signal and a first switching unit switched on/off based on an external input signal to selectively supply power to the PWM generation unit. Thus, power consumption of the electronic apparatus in the standby mode is minimized to facilitate conformance with power regulations in accordance with an energy saving policy.

Electronic apparatus and power controlling method thereof

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.

Apparatus for supplying multi-output power and display apparatus using the same

Glasses apparatus interlocking with a 3D display device is provided. The glasses apparatus includes a shutter glasses unit, a synchronous signal receiving unit receiving a synchronous signal from the 3D display device, a shutter glasses which drives unit driving the shutter glasses unit, a DC/DC converter unit which converts converting a DC voltage provided from a battery, and a control unit which controls the DC/DC converter unit to apply the converted DC voltage to the shutter glasses driving unit through supplying of a PWM signal to the DC/DC converter unit and controlling the shutter glasses driving unit, which is driven by the applied DC voltage, to turn on/off the shutter glasses unit according to the synchronous signal.

Glasses apparatus and power supply apparatus

A display device and a driving method are provided. The display device includes: a display panel which displays an image; at least one light emitting diode (LED) which emits light to the display panel; a driver which supplies an operating voltage to the LED and drives the LED; a feedback unit which detects a level of a voltage drop of the LED and outputs a detection signal corresponding to the detected level of the voltage drop; and a first controller which controls a level of the operating voltage supplied to the LED based on the operating voltage supplied to the LED and the detection signal output by the feedback unit.

Display device and driving method with feedback control

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.

Display apparatus and power supplying method thereof

Provided are a method and apparatus for improving the power factor of an input power. The apparatus includes an input unit receiving the input power, a power factor correction unit correcting the power factor of the input power applied to the input unit, and a saturation prevention unit controlling the power factor correction unit such that the corrected power does not exceed a set power limit.

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Seoul, South Korea

Won-myung Woo