Abstract: A matchless plasma source is described. The matchless plasma source includes a controller that is coupled to a direct current (DC) voltage source of an agile DC rail to control a shape of an amplified square waveform that is generated at an output of a half-bridge transistor circuit. The matchless plasma source further includes the half-bridge transistor circuit used to generate the amplified square waveform to power an electrode, such as an antenna, of a plasma chamber. The matchless plasma source also includes a reactive circuit between the half-bridge transistor circuit and the electrode. The reactive circuit has a high-quality factor to negate a reactance of the electrode. There is no radio frequency (RF) match and an RF cable that couples the matchless plasma source to the electrode.

Abstract: A controller for receiving input from a user includes: a memory having at least one set of profile data stored therein; a communication unit operating to transmit and receive signals to and from at least one of a game console and a game server; and a control unit operating to control the controller based on the at least one profile data set. The communication unit operates to transmit a list of one or more profile IDs corresponding to the at least one profile data set to the at least one game console and game server. The communication unit receives a selected profile ID, from among the one or more profile IDs, selected by the user from the at least one game console and game server. The control unit reads a profile data set corresponding to the received, selected profile ID, which is stored in the memory. The control unit controls operations of at least one of the controller with respect to the at least one game console and game server in accordance with the profile data.

Abstract: An active gain control circuit includes a dynamic voltage divider having a variable resistance configured to attenuate a rectified input line voltage to produce a reference signal, a filter-divider circuit configured to extract a DC-level attenuated reference voltage from the reference signal, and an operational amplifier configured to receive the DC-level attenuated reference voltage and a regulation voltage, and to generate a gate control signal based on a difference between the regulation voltage and the DC-level attenuated reference voltage, the variable resistance of the dynamic voltage divider being controlled by the gate control signal, and a comparison voltage generator configured to attenuate a comparison voltage to generate the regulation voltage.

Abstract: A switched power converter (102) is arranged for supplying lighting means (108) as a load, having at least one (M40, M41) switch controlled by a control unit (106), wherein the control unit (106) comprises: a feedback controller, such as an ASIC or microcontroller, generating a switch control signal based on a feedback signal (Imeas), such as e.g. the load current (ILED), and a separate sweep block, supplied with a signal representing a characteristic of the load (LED), such as e.g. the load voltage (VLED), and modulating the switch control signal (tout-ctrl) by a cyclic sweep, wherein the modulated switch control signal (tout-sweep) is provided directly or indirectly to the at least one switch (M40, M41).

Abstract: A transmission line for conveying a radio frequency (RF) signal between a first terminal and a second terminal. The transmission line comprises an inner conductor, a middle conductor and an outer conductor. The inner conductor comprises a length of conductive material having a first end for electrical connection with the first terminal and a second end for electrical connection with the second terminal. The middle conductor surrounds at least a part of the length of the inner conductor and is electrically connected to the electrical ground of the source. The outer conductor surrounds at least a part of the length of the middle conductor and is electrically connected to the electrical ground of the load.

Abstract: Embodiments of this disclosure describe a feedback loop that can be used to maintain a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate. The system described herein consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.

Abstract: A fixture configuration module comprises a connector configured to be removably coupled with a light fixture. The fixture configuration module also comprises fixture control circuitry communicatively coupled to the connector and configured to control the light fixture to produce light in accordance with a range of a lighting parameter. The range includes at least a subset of values supported by the light fixture for producing light. The fixture configuration module further comprises range control circuitry communicatively coupled to the fixture control circuitry and configured to wirelessly receive the range at least while the connector is uncoupled from the light fixture, and designate the range to the fixture control circuitry while the connector is coupled to the light fixture.

Abstract: A laminar phased array has a first sub-array configured to operate in one of a receive mode with a first polarity and a transmit mode with a second polarity, and a second sub-array configured to operate in one of a receive mode with the second polarity and a transmit mode with the first polarity. The first polarity is physically orthogonal to the second polarity. The array also has a controller configured to control the first and second sub-arrays so that they operate together in either 1) a receive mode or 2) a transit mode. Accordingly, both sub-arrays are configured to operate at the same time to receive signals in the first and second polarities when in the receive mode. In a corresponding manner, both sub-arrays are configured to operate at the same time to transmit signals in the first and second polarities when in the transmit mode.

Abstract: In some embodiments, a phased array antenna includes a carrier; a first plurality of antenna elements carried by the carrier and configured to transmit and/or receive signals at a first value of a parameter, and a second plurality of antenna elements carried by the carrier and configured to transmit and/or receive signals at a second value of the parameter different from the first value of the parameter. The antenna elements of the first plurality of antenna elements and the second plurality of antenna elements are located within a common aperture of the phased array antenna.

Abstract: A converter for driving a load has a main switch for controlling, at a switching frequency, the path of current flow through a power inductor and power commutation thereof so as to provide an output. A hysteretic control circuit generates a burst signal for turning on and off the power commutation to implement a burst mode operation with a burst frequency lower than the switching frequency. An adjusting circuit adjusts the upper threshold and/or the lower threshold of the hysteretic control in dependence on the detected burst signal. This burst mode hysteresis controlled converter in this way has the hysteresis adapted in dependence on the load being driven so that load regulation problems are reduced.

Abstract: A phased array antenna system having radiating units unitarily formed and arranged in an array by direct metal sintering avoiding assembly requirements. Each radiating unit includes a free-space impedance transformer having first, second and third radiator elements. Each radiating unit includes an embedded balun having first, second, and third impedance transition elements located generally concentric with the first, the second, and the third radiator elements and distally connected respectively to form a first integrated coaxial interface, a second integrated coaxial interface, and an integrated ground interface. Each radiating unit includes a ground plane electrically coupled to the integrated ground interface.

Abstract: Generators and methods for igniting a plasma in a plasma chamber are disclosed. The generator includes an ignition profile generator that includes a data interface configured to receive a voltage value and a time value for each of N data points and an ignition data generator configured to create an ignition profile from the N data points. The generator also includes an ignition profile datastore to store the ignition profile and a waveform generator configured to apply a waveform with the ignition profile to an output of the generator.

Abstract: A plasma processing apparatus includes a chamber; a first electrode facing an inside of the chamber; a radio-frequency power supply configured to supply a radio-frequency power to the first electrode; a feeding rod configured to feed the radio-frequency power to a center of a surface of the first electrode opposite to a surface facing the inside of the chamber; a conductive plate provided in parallel to the surface of the first electrode opposite to the surface facing the inside of the chamber, the plate being grounded; and a dielectric plate connecting the first electrode and the conductive plate, and having a shape that is rotationally symmetric with respect to a center of the first electrode.

Abstract: A lighting system is disclosed. The lighting system has a plurality of lighting assemblies; a first controller coupled to a power source at a first connection and at least one of the plurality of lighting assemblies at a second connection, each of said plurality of lighting assemblies including a plurality of lighting elements, each of said plurality of lighting elements including a plurality of pairs of different colored lights, each of said plurality of pairs including a first light and a second light, said first light of said light pair activated via a first voltage polarity and said second light of said light pair activated via a second voltage polarity, said first controller having a switch with a plurality of switch positions.

Abstract: This LED driving device comprises: a DC/DC controller which controls an output stage for supplying an output voltage to an LED; and a current driver which generates an output current of the LED, wherein the current driver performs PWM dimming by turning on the output current in accordance with an LED-current-on period of a PWM dimming signal and turning off the output current in accordance with an LED-current-off period of the PWM dimming signal, and the DC/DC controller includes a feedback control unit which performs feedback control for outputting a switching pulse to the output stage so as to make a cathode voltage of the LED equal to a reference voltage, and a pulse addition control unit which performs pulse addition control for adding a predetermined pulse number of additional switching pulses at a time of switching between the LED-current-on period and the LED-current-off period.

Abstract: A plasma confinement system includes an enclosure, one or more internal magnetic coils suspended within the enclosure in a plasma region, and one or more supports configured to support the one or more internal magnetic coils suspended within the enclosure. Each support of the one or more supports includes a first end and a second end opposite the first end. The first end is coupled to an interior portion of the enclosure and the second end is coupled to a component disposed within the plasma region. Each support further includes electrical conducting material disposed between the first end and the second end. The electrical conducting material is configured to, when supplied with one or more electrical currents, generate a magnetic field having a magnetic field gradient that varies along the support from the first end to the second end.

Abstract: Described herein are systems and methods for operating DC-DC regulators such as LED drivers. Various embodiments herein allow a DC-DC regulator to switch between buck mode and buck-boost mode without suffering effects otherwise resulting from transient currents when switching between modes. In certain embodiments, this is accomplished by operating the DC-DC regulator in a buck-boost mode to charge a boost capacitor with a substantially constant inductor current. The inductor current is also used to control a set of switches to operate the DC-DC regulator in a buck mode to drive a load by using the capacitor as a power source.

Abstract: Embodiments of the present disclosure generally relate to inductively coupled plasma sources and plasma processing apparatus. In at least one embodiment, plasma source includes a first sidewall and a gas injection insert defining a plasma source interior volume. The gas injection insert includes a peripheral gas injection port, a second sidewall disposed concentric with the first sidewall, and a center gas injection port. The plasma source includes a first induction coil disposed proximate the first sidewall and disposed around the first sidewall. The plasma source includes a first radio frequency power generator coupled with the first induction coil. The plasma source includes a second induction coil disposed proximate the second sidewall and disposed around the second sidewall. The plasma source includes a second radio frequency power generator coupled with the second induction coil.

Abstract: A control method includes: (a) connecting a power supply to an electrode of an electrostatic chuck inside a chamber and applying a voltage from the power supply to the electrode; (b) after (a), switching a connection between the electrode and the power supply to a non-connection state; (c) after (b), supplying a gas into the chamber to generate plasma; and (d) measuring a potential of the electrode during (c).

Abstract: A technology for configuring a lifestyle LED light with a tunable light color temperature is disclosed. The technology of tuning the light color temperature is made possible by blending two LED loads emitting light with different color temperatures thru a light diffuser with an arrangement that a first electric power delivered to a first LED load emitting light with a low color temperature and a second electric power delivered to a second LED load emitting light with a high color temperature are reversely and complementarily adjusted for tuning a diffused light color temperature such that a total light intensity generated by the LED light is kept essentially unchanged.