Abstract: A snubber circuit according to an embodiment of the present invention, which is connected to a secondary side switch of a transformer, includes a diode connected to an input terminal of the secondary side switch, a capacitor connected to an output terminal of the diode, a resistor connected in parallel with the capacitor, a snubber switch directly connecting the resistor and a ground, a sensing resistor connected to the input terminal of the secondary side switch and configured to detect voltage of the input terminal of the secondary side switch, and an OP-AMP configured to receive the detected voltage of the input terminal of the secondary side switch and a reference voltage, and output a high or low signal to a gate of the snubber switch through a comparison of the detected voltage of the input terminal of the secondary side switch with the reference voltage.

Abstract: A camera module includes a circuit board on which an image sensor is disposed, a lens unit disposed in front of a sensor surface of the image sensor, a housing accommodating the lens unit and the image sensor, disposed on the circuit board and a gyro sensor sensing the motion. The circuit board includes a first circuit board on which the image sensor is disposed, and a second circuit board on which the gyro sensor is disposed. The first circuit board may be disposed extending in a first axis direction, and the second circuit board may be disposed extending in a direction parallel to the optical axis direction while perpendicular to the first axis. The central axis of the gyro sensor may be parallel to the first axis direction but perpendicular to the optical axis direction.

Abstract: A camera module according to an embodiment includes a reinforcing plate; a bump part disposed on the reinforcing plate; a substrate disposed on the reinforcing plate and including a cavity vertically overlapping the bump part; and an image sensor disposed on the bump part, wherein the bump part includes a first bump disposed on the reinforcing plate and having a first height; and a second bump disposed on the first bump and having a second height different from the first height; and wherein an upper surface of the second bump is in direct contact with a lower surface of the image sensor.

Abstract: A charging control device of an electric vehicle can include a charge sequence port to which a charging sequence signal is input, a first controller configured to periodically operate in a wake-up state and a sleep state, and to output a wake-up signal when the charging sequence signal is input in the wake-up state, a second controller configured to operate in a wake-up state when the wake-up signal is output during maintaining of a sleep state, and a signal provider disposed between the first controller and the second controller. Also, the signal provider is configured to provide the charging sequence signal to both of the first controller and the second controller.

Abstract: A circuit board according to an embodiment includes an insulating layer; a circuit layer disposed on the insulating layer; and a protective layer disposed on the insulating layer, wherein the circuit layer includes a first-first pad and a first-second pad spaced apart from each other in a first horizontal direction, wherein the protective layer includes: a first protective pattern disposed between the first-first pad and the first-second pad and surrounding at least a portion of a side surface of the first-first pad and a side surface of the first-second pad; and a second protective pattern disposed surrounding the first protective pattern, an upper surface of the first protective pattern is positioned lower than an upper surface of the first-first pad and an upper surface of the first-second pad, an upper surface of the second protective pattern is positioned higher than the upper surfaces of the first-first pad and the first-second pad, and each of the first-first pad and the first-second pad has different

Abstract: An embodiment may provide a motor comprising: a stator including stator teeth; and a rotor including a magnet, wherein the stator teeth include a first stator tooth and a second stator tooth disposed within the first stator tooth, wherein the first stator tooth includes a plurality of first teeth, the second stator tooth includes a plurality of second teeth, wherein the first teeth radially overlap the second teeth at the center of the stator in a radial direction, the motor further comprising: a sensor and a collector disposed between the first stator tooth and the second stator tooth in the radial direction, and the motor further comprising: a circuit board on which the sensor is disposed; and a housing accommodating the circuit board, wherein the collector includes a first collector and a second collector disposed within the first collector, the sensor is disposed, in the radial direction, between the first collector and the second collector, and the housing includes a first protrusion, wherein the first p

Abstract: In an alloy metal plate according to an embodiment, diffraction intensity of a (111) plane of the alloy metal plate is defined as I (111), diffraction intensity of a (200) plane of the alloy metal plate is defined as I (200), diffraction intensity of a (220) plane of the alloy metal plate is defined as I (220), a diffraction intensity ratio of I (200) is defined by the following Equation 1, and a diffraction intensity ratio of I (220) is defined by the following Equation 2. At this time, the A is 0.5 to 0.6, the B is 0.3 to 0.5, and the value A may be larger than a value B. A = I ? ( 200 ) / { I ? ( 200 ) + I ? ( 220 ) + I ? ( 111 ) } [ Equation ? 1 ] The diffraction intensity ratio of I (220) is defined by the following Equation 2.

Abstract: A lens moving apparatus, according to one embodiment, comprises: a bobbin having a first coil installed on the outer circumferential surface thereof; a location detection sensor equipped to the bobbin; a housing in which the bobbin is provided; an upper elastic member disposed on the upper side of the housing; and a support member that supports the housing such that the housing can move in a second or third direction that is perpendicular to a first direction, wherein the upper elastic member is divided into a plurality of parts, at least two of which are disposed parallel to each other on the x-y plane in the second or third direction and are disposed such that end portions thereof face each other.

Abstract: This camera module comprises: a first housing including a lens; a second housing coupled to the first housing; a substrate assembly positioned inside a space formed by the coupling of the first housing and the second housing; and a shield can positioned inside the second housing. The substrate assembly includes at least one substrate and a spacer positioned outside the substrate, wherein the spacer includes a plurality of protrusions that protrude from the outer surface and contact the shield can.

Abstract: A printed circuit board according to an embodiment includes: a first insulating portion having a cavity; a second insulating portion disposed on the first insulating portion; a third insulating portion disposed under the first insulating portion; and an electronic device disposed in the cavity, wherein a number of layers of the second insulating portion is different from a number of layers of the third insulating portion, and has an asymmetric structure with respect to the first insulating portion in which the electronic device is disposed.

Abstract: The present invention provides a motor including a shaft, a rotor coupled to the shaft, and a stator disposed to correspond to the rotor, wherein the stator includes a stator core, an insulator coupled to the stator core, and a coil disposed on the insulator, the motor includes a busbar electrically connected to the coil and a busbar holder which supports the busbar, the busbar includes a first terminal and a second terminal connected to the first terminal, the first terminal includes a first embossing and a second embossing, and the second terminal includes a first part in contact with the first embossing and a second part in contact with the second embossing.

Abstract: A resin coated copper according to an embodiment includes: an insulating layer including a resin and a filler dispersed in the resin; and a copper foil layer disposed on the insulating layer, wherein the insulating layer has a plurality of pores formed on a surface in contact with the copper foil layer, and the plurality of pores have a width of 200 nm to 350 nm.

Abstract: A method of transmitting power by a wireless power transmitter, the method including sequentially transmitting a sensing signal a plurality of times to a wireless power receiver through a plurality of transmission coils to sense the presence of the wireless power receiver; identifying transmission coils that receive a signal strength indictor transmitted by the wireless power receiver in response to the plurality of sensing signals; and selecting, as a power transmission coil, the transmission coil that has received the signal strength indicator having the largest amount or the largest value among the transmission coils that have received the signal strength indicator, receiving a plurality of packets including a foreign object detection (FOD) status packet from the wireless power receiver; determining whether a foreign object is present in a charging area of the wireless power transmitter on the basis of the FOD status packet; and transmitting, to the wireless power receiver, a response signal indicating whe

Abstract: An optical device includes a light receiving element for detecting light reflected and transmitted from a subject; a voltage part for providing a first bias voltage or a second bias voltage to the light receiving element; and a controller for controlling the voltage part so that the second bias voltage provided from the voltage part is synchronized with a light output of a light emitting part to be provided to the light receiving element.

Abstract: The present exemplary embodiment relates to an imaging lens system according to the present exemplary embodiment comprises: a first lens group comprising at least one solid lens; a second lens group spaced apart from the first lens group and comprising at least one solid lens; and a variable focal lens disposed between the first lens group and the second lens group, wherein the following Conditional Expression is satisfied: 1<THlg1/THlg2<2.

Abstract: A lens assembly according to an embodiment may comprise: a first pin; a first housing which moves along the first pin; a first lens group arranged in the first housing; and a first wheel which is arranged in the first housing and moves along the first pin. The first wheel may include a first rotation shaft coupled to the first housing, and a first rotation part which rotates about the first rotation shaft. The first rotation part may include a groove corresponding to the first pin, wherein the maximum depth of the groove may be less than one-half the maximum thickness of the first pin in a direction perpendicular to the first rotation shaft.

Abstract: An embodiment of the present invention relates to an imaging lens comprising: a first lens having positive (+) refractive power; a second lens having negative (?) refractive power; a third lens having negative (?) refractive power; a fourth lens; a fifth lens having negative (?) refractive power; and a sixth lens, wherein the first to sixth lenses are successively arranged from an object side to an image side, the first to third, fifth, and sixth lenses are solid lenses, and the fourth lens comprises a focus-tunable lens.

Abstract: The present embodiment relates to a liquid lens comprising: a case forming a chamber therein; a liquid disposed in the chamber; and a heating member disposed in the case and heating the liquid, wherein the case comprises: a first plate through which an optical axis passes, and disposed on one side of the liquid; and a second plate through which the optical axis passes, and disposed on the other side of the liquid, the thickness of the first plate on the optical axis is thinner than that of the second plate on the optical axis, and the chamber is filled with a single liquid.

Abstract: One embodiment relates to a camera module comprising: a housing; a first printed circuit board having an image sensor mounted thereon, and loaded in the housing such that the image sensor is accommodated in the housing; a second printed circuit board and a third printed circuit board sequentially arranged on the lower part of the first printed circuit board in the vertical direction; a support unit arranged in the housing while accommodating the first printed circuit board therein, and having a stepped portion including a first loading portion at which the second printed circuit board is placed and a second loading portion at which the third printed circuit board is placed; and a fixing unit coupled to the housing by penetrating through a first groove portion and a second groove portion, which are respectively formed at the edge parts of the second printed circuit board and the third printed circuit board, and through a third groove portion formed at the edge part of the support unit.

Abstract: A light detection and ranging (LiDAR) system including a plurality of light emitters, wherein the plurality of light emitters are configured to emit a plurality of beams, and the plurality of light emitters are configured to form a beam polarization pattern of the plurality of beams to be emitted toward an object external to the LiDAR system, a receiver that is configured to receive light reflected from the object, and an analyzer that comprises a processor and programming instructions that are configured to cause the processor to determine characteristic differences between the beam polarization pattern of the beams emitted toward the object and an intensity pattern of the light reflected from the object, determine a reflection position that is associated with the light reflected from the object, and use the determined characteristic differences to determine whether the reflection position is a position of the object or a position of a ghost.