Abstract: A high-efficiency LED driving circuit includes a rectifying module, a power converting module and a power supply module. The power converting module is connected to the rectifying module and a load, and includes a controller. The load includes a plurality of LEDs. The power input pin of the controller is connected to a connecting point and the connecting point is disposed between two of the LEDs. The quantity of the LEDs can be 2 or more than 2. The circuit design of the driving circuit can effectively reduce the power consumption and heat generation thereof, such that the reliability of the driving circuit can be effectively enhanced.

Abstract: An illumination device, an LED driver circuit, a bleeder control circuit and a control method are provided. An AC input voltage is transmitted to a bus line after phase-cut processing. The bleeder control circuit includes a timing module configured to receive a bus voltage and at least one threshold voltage and generate a first time signal; a time processing module configured to receive the first time signal and generate a second time signal based on the first time signal in a previous power frequency half-wave cycle; and a control signal generation module configured to receive the second time signal and generate a first control signal for controlling a bleeder circuit. The beneficial effects of the present disclosure include the bleeder circuit being accurately controlled through the detection of the bus voltage and the implementation of the adaptive control method, thereby improving the operational efficiency and stability of the system.

Abstract: There is provided a plasma processing apparatus. The apparatus comprises: a chamber body; and a power supply unit configured to output power for exciting a gas supplied to an inside of the chamber body. The power supply unit supplies, as power having a center frequency, a bandwidth, and a carrier pitch respectively corresponding to a set frequency, a set bandwidth, and a set carrier pitch that are indicated by a controller, power which is pulse-modulated so as to be a pulse frequency, a duty ratio, a high level, and a low level respectively corresponding to a set pulse frequency, a set duty ratio, a high-level set power, and a low-level set power indicated by the controller, and in which a pulse on time determined by the set pulse frequency and the set duty ratio is longer than a power fluctuation cycle of the power having the bandwidth.

Abstract: In one example, a plasma processing system includes a vacuum system, a plasma processing chamber including a chamber cavity coupled to the vacuum system, a substrate holder including a surface disposed inside the chamber cavity, a radio frequency (RF) source electrode coupled to an RF power source, the RF source electrode configured to ignite plasma in the chamber cavity. The system includes a microwave source coupled to a microwave oscillator, and a conductive spatial uniformity component including a plurality of through openings, where the conductive spatial uniformity component includes a major surface electromagnetically coupled to the microwave source, the major surface configured to couple microwave power to the plasma in the chamber cavity.

Abstract: An electromagnetic device includes: a substrate having an elongated aperture having an overall length, L, and an overall width, W, as observed in a plan view of the device, where L>W; a dielectric medium having a dielectric material other than air disposed on the substrate substantially covering the aperture, the dielectric medium having a cross sectional boundary as viewed in the plan view of the device, the cross sectional boundary having at least one recessed portion that recesses inward toward the aperture from a tangent line that partially bounds the cross sectional boundary; wherein the length L is not perpendicular to the tangent line.

Abstract: A method is provided for estimating an antenna gain for an antenna under test (AUT). The AUT is positioned above a lossy surface and a probe antenna is positioned at a test distance from the AUT. A known signal is emitted from the AUT and received at the probe antenna. Utilizing the calculated normalized potential, the AUT gain can be estimated at any distance from the AUT. An apparatus is also provided.

Abstract: An apparatus includes a fine bubble generator, a gas supplying source, a first plasma generator, a second plasma generator, a power source and a control module. The fine bubble generator is configured to generate fine bubbles in a liquid. The gas supplying source is configured to supply a working gas. The first plasma generator is configured to generate a first plasma gas from the working gas. The second plasma generator is configured to generate a second plasma gas from the working gas. The power source is configured to supply electricity to the first plasma generator and the second plasma generator. The control module is configured to adjust the power source to provide power to the first plasma generator and the second plasma generator. The first plasma gas and the second plasma gas are directed into the liquid.

Abstract: A plasma reaction cell includes a discharge chamber with a base plate, a side wall, and a cooling plate. A discharge stack mounted within the discharge chamber includes a first insulation plate, a first conductive spacer, a second insulation plate, and a second conductive spacer. An electrode electrically coupled to the first conductive spacer extends through the side wall of the discharge chamber. A first gas channel formed between the first conductive spacer and the first insulation plate has a first end in fluid communication with a first gas port and a second end in fluid communication with a second gas port. A second gas channel formed between the first conductive spacer and the second insulation plate has a first end in fluid communication with the first gas port and a second end in fluid communication with the second gas port.

Abstract: A light emitting element drive device includes a driving circuit that supplies a variable drive current to a light emitting unit having one or more light emitting elements so that the light emitting unit can emit light, a drive reference voltage generation circuit that generates a drive reference voltage defining the upper limit value of the drive current and supplies the same to the driving circuit, and a specific external terminal capable of connecting to an external resistor. The drive reference voltage generation circuit operates selectively in a first mode to generate the drive reference voltage regardless of the state of the specific external terminal, or a second mode to generate the drive reference voltage in accordance with a second mode current through the specific external terminal.

Abstract: A method of cleaning a chamber for an electronics manufacturing system includes flowing a gas mixture comprising oxygen and a carrier gas into a remote plasma generator. The method further includes generating a plasma from the gas mixture by the remote plasma generator and performing a remote plasma cleaning of the chamber by flowing the plasma into an interior of the chamber, wherein the plasma removes a plurality of organic contaminants from the chamber.

Abstract: The present disclosure relates to the technical field of lighting circuit, and more particularly to a lamp-apparatus circuit and a lamp apparatus. The lamp-apparatus circuit includes a drive module, a dimming module and a switch module for adjusting the current of the output terminal of the drive module, which are electrically connected. The dimming module includes a dimming circuit, a light-emitting circuit and a multi-position control circuit for controlling the dimming circuit to adjust the color temperature of the light-emitting circuit, which are electrically connected. The dimming module as a whole and the color temperature of the light-emitting circuit can be adjusted simply in operation. The color temperature adjustment means of the lamp apparatus are more diverse and more convenient, and the control circuit is a multi-position control circuit, which improves the flexibility of the color temperature adjustment of the lamp apparatus.

Abstract: A measuring method includes placing a substrate on an electrostatic chuck disposed inside a chamber, attracting the substrate onto the electrostatic chuck, generating plasma inside the chamber, detecting an amount of light reflected at the substrate by light emission of the plasma, and calculating a natural frequency of the substrate based on the amount of light.

Abstract: A circuit may be configured to deliver current to one or more light emitting diodes (LEDs). The circuit may comprise a first current path configured to deliver a first current to the one or more LEDs, and a second current path in parallel with the first current path, wherein the second current path is configured to deliver a second current through a voltage drop element and to the one or more LEDs. According to this disclosure, a sum of the first current and the second current is regulated based on a sensed current through the circuit.

Abstract: Antenna assemblies and antenna systems are described. According to one aspect, a printed circuit board antenna system includes a dielectric substrate comprising first and second surfaces that are opposite to one another, first electrically conductive material of an antenna element adjacent to the first surface of the dielectric substrate, wherein the antenna element is configured to emit electromagnetic energy, and second electrically conductive material of a ground plane adjacent to the second surface of the dielectric substrate, wherein the ground plane is aligned with the antenna element and configured to reflect some of the electromagnetic energy in a direction towards the antenna element.

Abstract: The invention relates to a control circuit (50) for pulsed control of a light-emitting means (52), in particular an LED or a laser diode (52), having a switched-mode power supply unit (54) with a first switch (64) arranged in a primary circuit of the switched-mode power supply unit (54), wherein the switched-mode power supply unit (54) has a primary-side connector (62) for connection to a supply voltage, a secondary-side connector (67) for supplying the light-emitting means (52) and a switching input (65) for operating the first switch (64), having a storage capacitor (68) arranged between the secondary-side connector (67) and a ground (66), having a second switch (70) arranged in a current path (71) in parallel with the storage capacitor (68), wherein the light-emitting means (52) is positionable in the current path (71), and having a control unit (72) to control the first and the second switch (64, 70), wherein the control unit (72) is designed to operate the first switch (64) in order to induce at least on

Abstract: A device may detect a power removal event, determine whether the power removal event is a local power removal event or a system power removal event, and perform state correction. For example, the device may receive an indication of a state change event turning on the lighting device. The indication may be received from a sensor. For example, the sensor may include a photosensing circuit (e.g., capable of detecting light emission from the lighting device) or the sensor may include a live voltage sensor (e.g., capable of detecting a change in current driven to the lighting device). The device may then determine whether the power removal event is a system power removal event or a local power removal event. If the device determines that the power removal event is a system power removal event, the device may perform state correction (e.g., setting the lighting device to its state prior to the power removal event).

Abstract: Systems and methods for targeted illumination of an object coupled to a machine, such as an implement coupled to an agricultural vehicle, are disclosed. The systems and methods include sensing an area adjacent to the machine, determining whether an implement is present in the sensed area, and providing targeted illumination to the detected object while avoiding the provision of light to the area that is not occupied by the object.

Abstract: A device comprising an organic light-emitting diode comprising an organic layer sequence, a radiation exit area and an encapsulation, wherein the organic layer sequence comprises at least one radiation-emitting region which generates electromagnetic radiation in the spectral range from infrared radiation to UV radiation during operation, and wherein the encapsulation forms a seal of the organic layer sequence against environmental influences, at least one touch-sensitive operating element, wherein the at least one touch-sensitive operating element comprises at least one touch sensor, wherein the device is flexible.

Abstract: A display apparatus with a power supply circuit is provided. The power supply circuit is connected with a light emitting diode (LED) drive circuit, a filter circuit and a feedback circuit in the display apparatus. The power supply circuit includes a fixed-voltage power supply element and a variable-voltage power supply element, and the fixed-voltage power supply element is superposed on the variable-voltage power supply element and configured to supply power to the LED drive circuit in a stepped manner; and a controller is configured to control a voltage of the variable-voltage power supply element according to a variation of the output voltage feedback from the feedback circuit.

Abstract: Disclosed is a substrate treating apparatus, which includes a chamber having a space for treating a substrate in an interior thereof, a substrate support assembly including a support plate situated in the chamber and which supports the substrate, a gas supply unit which supplies a gas into the interior of the chamber, a plasma generating unit which excites the gas in in the interior of the chamber into a plasma state, and a substrate temperature control unit which controls a temperature of the substrate, and the substrate temperature control unit includes a plurality of heaters installed in different areas of the support plate, a power supply part which supplies electric power to the plurality of heaters, a ferrite core which interrupts a low-frequency signal introduced to the power supply part, and a plurality of air cores which interrupts a high-frequency signal introduced into the power supply part.