Samsung Electronics Co., Ltd.

Kookmin University

Jeongil Kang

Moonyoung Kim

Sanghoon Lee

Sungyong Joo

Jaesung Lee

Sungbum Park

Duhee Jang

Shinwook Choi

Sungbum Jung

Wonmyung Woo

Kasan Ha

Keonwoo Kim

Sangkyoo Han

Youngho Choi

Seonghoon Woo

Jaeeun Kim

Kangmoon Seo

Sunjin Park

Jongsuk Lee

Hyosoon Choi

Jinhyung Lee

Sinwook Choi

An electronic apparatus includes: a converter including a switching device, an inductor, and an output capacitor; a protection switching device provided between the inductor and the output capacitor; and a protection circuit configured to provide a control voltage to: turn on the protection switching device based on a first voltage applied between the inductor and the protection switching device, the first voltage being lower than or equal to a threshold level corresponding overvoltage, and turn off the protection switching device based on the first voltage, the first voltage being higher than the threshold level. The control voltage is varied depending on variation in the input voltage or the output voltage and having a level corresponding to a threshold voltage for turning on or off the protection switching device.

Electronic apparatus

An electronic device comprising: a power supply to supply power; an infrared rays (IR) receiver; a first integrated circuit (IC) to drive the IR receiver based on the power supplied from the supply; and a second IC to supply power to a field-effect transistor (FET), wherein, when a preset control command is received through the IR receiver, the first IC turns on the second IC to drive the FET, which is connected to the second IC and is in a stopped state while the second IC is in a turned-off state, by turning on the second IC to thereby supply power to the electronic device.

Electronic device and control method therefor

A display device includes; a signal receiver configured to receive a control signal in form of infrared light, from a remote controller; and a controller configured to: control the signal receiver, based on the control signal received by the signal receiver, control the signal receiver, based on a first state in which the signal receiver is activated according to a preset period smaller than a duration of the control signal; in response to identifying the control signal by the signal receiver that is controlled based on the first state, control the signal receiver, based on a second state in which the signal receiver is activated during a time section longer than the duration of the control signal; and control the display device, based on the control signal identified by the signal receiver.

Display device and method for adjusting power consumption of signal receiver

A display device includes: a display panel; a chassis assembly accommodating the display panel; a rear cover surrounding at least a portion of the chassis assembly; and a control assembly provided between the chassis assembly and the rear cover and, wherein the control assembly includes: a single-side printed circuit board (PCB) including a circuit surface with a circuit pattern printed thereon, and an insulating surface, a circuit module provided on the circuit surface, and a jumper connector including a first protruding portion passing through a first hole of the single-side PCB, a second protruding portion passing through a second hole of the single-side PCB.

Display device with slim control assembly

A display apparatus is disclosed. The display apparatus includes: a backlight; a main circuit; a power supply configured to output a first power to drive the backlight and a second power to drive the main circuit; a first battery configured to be charged by the first power and supply power to the backlight; a second battery which is connected to the first battery in series, and configured to be charged by the first power and supply power to the backlight and the main circuit; and a control circuit configured to control the first battery and the second battery to be charged with the first power for a first time period, and drive the backlight with first battery power of the first battery and second battery power of the second battery for a second time period.

Display apparatus and control method thereof

The electronic apparatus including a power factor correction (PFC) circuit and a control circuit configured to control an operation of the PFC circuit is provided. The PFC circuit includes a first inductor part connected to one end of an AC voltage part and a first switch connected to a first inductor in series; a second inductor part connected to another end of the AC voltage part and a second switch connected to a second inductor in series; an output part connected to the first inductor part and the second inductor part; and a switching part, and the control circuit identically applies a switch on/off signal to the first switch and the second switch, and selectively applies a switch on/off signal to the third switch or the fourth switch based on a magnitude of an input voltage input through the AC voltage part.

Electronic apparatus and control method thereof

A display apparatus includes a body; a display provided in the body; a processor provided in the body and configured to control the display to display an image; and a power supply including an adapter configured to be detachable from the body, and a power assembly configured to receive power from the adapter in a non-contact manner and supply the power to at least one of the display and the processor.

Display apparatus

A display apparatus includes: a display, a processor configured to process image data to be displayed on the display, a transformer including a primary coil and a plurality of secondary coils, a first rectifier connected with a first coil of the plurality of secondary coils and configured to output a first output voltage corresponding to a number of turns of the first coil, a direct current-direct current (DC-DC) converter configured to receive the first output voltage from the first rectifier and output a second output voltage that is different from the first output voltage, and a second rectifier connected with a second coil of the plurality of secondary coils and configured to output a first load voltage which is a sum of the second output voltage and a third output voltage corresponding to a number of turns of the second coil to the display.

Display apparatus and power supply thereof

A display device includes a diode bridge configured to rectify input power; a power factor correction (PFC) circuit configured to control a power factor of the input power rectified by the diode bridge; a direct current (DC)/DC converter configured to change voltage of the input power received through the PFC circuit; and a PFC controller connected to the diode bridge and configured to selectively turn on or off the PFC circuit based on terminal voltages of lower diodes included in the diode bridge.

Display device and method for controlling display device

Disclosed is a display apparatus including: a display; a transformer configured to boost an input alternating current (AC) first voltage and output a second voltage; a switch configured to allow an electric current to flow or stop in the transformer based on a control signal; a power factor correction (PFC) converter configured to correct a power factor of the output second voltage, and output a direct current (DC) third voltage to the display; and a controller configured to modulate a frequency of the control signal so that the second voltage has a target level, and increase or decrease the frequency of the control signal within a specified range to synchronize with an AC period of the first voltage.

Display apparatus with switched mode power supply to adjust frequency of control signal

An electronic apparatus includes: a plurality of input ports to which a plurality of first external devices are connected; a converter; an output port to which a second external device is connected; and a processor that controls the converter to convert a plurality of input voltages of the plurality of first external devices connected to the plurality of input ports into an output voltage, identifies whether power is capable of being supplied by each of the input voltages, and controls the converter to output the converted output voltage to the second external device to the output port, based on whether the power is capable of being supplied.

Electronic apparatus for supplying power to an external device connected to an output port from multiple input ports and control method thereof

An electronic apparatus is provided. The electronic apparatus includes: a main body; and a power supply device configured to be electrically connected to the main body. The power supply device includes: a first housing comprising a first circuit configured to receive alternating current (AC) power; a second housing comprising a second circuit configured to supply direct current (DC) power to the main body; a hinge connected to the first housing and the second housing, and configured to be folded; and a flexible conductive structure electrically connecting the first circuit and the second circuit.

Provided are a levitating display device and an operating method thereof. The display device includes a frame unit and a panel unit, wherein the frame unit includes a power receiver and a wireless power transmitter configured to wirelessly transmit power received by the power receiver to the panel unit, and the panel unit includes a wireless power receiver configured to wirelessly receive the power from the wireless power transmitter and a display configured to receive the power from the wireless power receiver and display an image.

Levitating display device

An electronic apparatus is provided. The electronic apparatus includes: a main circuit; and a power supply circuit configured to receive external power from an external power supply and supply operating power to the main circuit. The power supply circuit includes: a converter; and a lightning protection circuit that includes: a varistor configured to have a first rated voltage corresponding to a breakdown voltage of a device of the converter; and a surge arrester connected in series to the varistor and configured to have a second rated voltage, and based on the external power being higher than the first rated voltage of the varistor, the varistor is clamped so that a voltage applied to the converter does not exceed the first rated voltage, and based on a voltage applied to the surge arrester being equal to or higher than the second rated voltage, the surge arrester is short-circuited.

Disclosed are a display apparatus and an electronic apparatus, the display apparatus including: a main body including a display and a connector; and an adapter connectable to the main body and configured to supply power to the connected main body, the adapter including: a transformer configured to boost an input first alternating current (AC) voltage, a switch including a switching device configured to switch a current flowing in the transformer, a controller configured to control the switching device to output a second AC voltage boosted by the transformer, and the main body including a power factor correction (PFC) converter configured to correct a power factor of the second AC voltage output from the adapter and output a direct current (DC) voltage.

Growing community of inventors

Suwon-si, South Korea

Jeongil Kang