Abstract: A method and a lighting control system for automatically determining a calibration curve for use in daylight harvesting applications. The lighting control system comprises a light sensor configured for recording light levels and a load controller configured for provide a dimmed output to a lighting load. The calibration curve comprises a calibration slope (SC) defined by a calibration coordinate (CC) and a night coordinate (CN). The calibration coordinate (CC) comprises a calibration dimming level (DC) set by a user and a calibration light level (LC) recorded by the light sensor when the lighting load is set to the calibration dimming level (DC).

Abstract: A control circuit is configured to convert a DC voltage that is outputted from a DC power supply to a square wave voltage by switching the switching element according to a PWM signal having a duty ratio that corresponds to a light modulation level of the light source unit, and cause the square wave voltage to be outputted to the light source unit. The control circuit includes a voltage controller configured to control an operating voltage for operating the switching element such that at least one of a rising time and a falling time of a current that flows through the switching element is 1 microsecond or more.

Abstract: Illumination devices with improved color mixing optics are disclosed herein for mixing the colors produced by a multi-colored LED emitter module to produce uniform color throughout the entire beam angle of the output light beam, along with smoother edges and improved center beam intensity. Embodiments disclosed herein include a unique arrangement of multi-color LEDs within an emitter module, a unique exit lens with different patterns of lenslets on opposing sides of the lens, and other associated optical features that thoroughly mix the different color components, and as such, provide uniform color across the output beam exiting the illumination device. Additional embodiments disclosed herein include a unique arrangement of photodetectors within the primary optics structure of the LED emitter module that ensure the optical feedback system properly measures the light produced by all similarly colored emission LEDs.

Abstract: The present disclosure provides solid state lighting fixtures with wireless, sensor and time based controllers to establish configurations for illuminating the lighting fixtures. More particularly, the present disclosure relates to solid state lighting fixtures having a wireless controller that permits illumination intensity adjustments as well activation timing, and sensors that permit efficient optical control.

Abstract: A dimming control device is configured to be electrically connected to a pull switch for controlling a lighting device. The dimming control device includes a control module and a power module. The control module is configured to be electrically connected to the pull switch for receiving a trigger signal that is indicative of a pulled duration for which a cord of the pull switch is pulled and held in a pulled state. The power module is controlled by the control module according to the trigger signal to operate the lighting device by turning on/off lighting elements of the lighting device, or steplessly adjusting brightness of light emitted from any lighting element that is turned on.

Abstract: A LAM/ICM assembly comprises an integrated control module (ICM) and an LED array member (LAM). The ICM includes interconnect through which power from outside the assembly is received. In a first novel aspect, active circuitry is embedded in the ICM. In one example, the circuitry monitors LED operation, controls and supplies power to the LEDs, and communicates information into and out of the assembly. In a second novel aspect, a lighting system comprises an AC-to-DC converter and a LAM/ICM assembly. The AC-to-DC converter outputs a substantially constant current or voltage. The magnitude of the current or voltage is adjusted by a signal output from the LAM/ICM. In a third novel aspect, the ICM includes a built-in switching DC-to-DC converter. An AC-to-DC power supply supplies a roughly regulated supply voltage. The switching converter within the LAM/ICM receives the roughly regulated voltage and supplies a regulated LED drive current to its LEDs.

Abstract: An integrated circuit includes first circuitry and sleep transistor circuitry. The first circuitry receives input signals and processes the input signals. The first circuitry also retains data in a sleep state that has low leakage. The sleep transistor circuitry is coupled to the first circuitry and receives a sleep signal that has a negative voltage. The sleep circuitry reduces power consumption of the first circuitry in the sleep state to have low leakage based on the sleep signal while retaining the data in the first circuitry.

Abstract: A modular plasma source assembly for use with a processing chamber is described. The assembly includes an RF hot electrode with an end dielectric and a sliding ground connection positioned adjacent the sides of the electrode. A seal foil connects the sliding ground connection to the housing to provide a grounded sliding ground connection separated from the hot electrode by the end dielectric. A coaxial feed line passes through a conduit into the RF hot electrode isolated from the processing environment so that the coaxial RF feed line is at atmospheric pressure while the plasma processing region is at reduced pressure.

Abstract: A current driver connected with light emitting diode (LED) bars of the maximum number N of channels and driving LED bars of M channels to be driven, includes: PWM input terminal configured to receive PWM-modulated external dimming pulse having duty cycle with a target light quantity common to the LED bars of the M channels; pulse measurement circuit configured to measure period and pulse width of the external dimming pulse and generate digital period data and pulse width data; interface circuit connected to external processor and configured to receive enable data and phase difference setting data; M current sources of the M channels to be driven and respectively connected with corresponding LED bars, and configured to be On-and-Off-switched in response to internal dimming pulse; and pulse generator configured to generate M internal dimming pulses and distribute the M internal dimming pulses to the M current sources.

Abstract: A calibration circuit sharing a resistor for impedance matching includes a command decoder configured to receive a command signal and decode the command signal into a calibration enable signal; a selector configured to select one of the calibration enable signal and a start signal according to a select signal, and provide a driving signal; and a calibration driver configured to perform an impedance matching operation in response to the driving signal, and generate a completion signal when performance is completed, wherein the start signal corresponds to a completion signal provided from another calibration circuit which shares the resistor for the impedance matching.

Abstract: Provided is a circuit for preventing an operating current of a TRIAC dimmer from being dropped below a holding current value. In this regard, a light emitting diode (LED) lighting device includes a TRIAC dimmer for controlling intensity of light emitted from an LED, a load connected between an output terminal of the TRIAC dimmer and a bridge rectifier to stabilize operation of the TRIAC dimmer even in low dimming level periods of the TRIAC dimmer, the bridge rectifier connected with the load to supply an operating current to the LED; and the LED for receiving the operating current from the bridge rectifier.

Abstract: A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.

Abstract: A power combiner includes a main body composed of outer and inner conductors, a plurality of power introduction ports configured to introduce electromagnetic wave powers supplied through power supply lines into the main body, a power combining antenna configured to radiate electromagnetic waves to a space between the outer and inner conductors such that the powers are combined, and an output port through which the combined electromagnetic wave is outputted from the main body. The power combining antenna includes a plurality of antenna members, each of which has a first pole and a second pole that is in contact with the inner conductor, and a reflection part configured to reflect the electromagnetic waves.

Abstract: A control device of a plasma ignition apparatus according to an embodiment includes a plug socket, an oscillation unit, and an amplification unit. The plug socket holds an ignition plug, and a high voltage generated by an ignition coil is transmitted to the ignition plug through the plug socket. The oscillation unit oscillates a high frequency. The amplification unit amplifies the high frequency oscillated by the oscillation unit. The oscillation unit is arranged outside of the plug socket and the amplification unit is arranged inside of the plug socket.

Abstract: A vehicle state indication system includes a light indicator and a controller. The light indicator includes a first on mode and second on mode, and is disposed on a vehicle so as to be capable of selectively externally indicating a first state of the vehicle and a second state of the vehicle at least in a forward direction of the vehicle. The controller is programmed to determine whether the vehicle intends to enter the first state or the second state, and to activate the first on mode while the vehicle intends to enter the first state and the second on mode while vehicle intends to enter the second state.

Abstract: An electronic apparatus may be provided that includes a clock device to provide a clock signal, and a clock gate to receive the clock signal, the clock gate to be selectively provided in an enabled state or a disabled state. The electronic apparatus may also include a controller to determine a frequency transition and to control the clock gate to be in the enabled state or the disabled state based on the determined frequency transition.

Abstract: A control system for wirelessly switching lamps over short distances includes a mobile device, a lamp control switch and a controlled lamp. A user holds the mobile device to approach or depart from the lamp control switch and continuously transmit a wireless signal according to a communication protocol. The lamp control switch receives the wireless signal according to the communication protocol and turns on or off a corresponding controlled lamp according to signal intensity of the wireless signal. The control system is operated when users travel among different environments. When users get close to the lamp control switch, the lamp control switch drives the controlled lamp to turn on or off, and when users depart from the lamp control switch, the lamp control switch automatically turns off the controlled lamp, thereby ensuring operational convenience, energy conservation and carbon reduction.

Abstract: Voltage mode drivers and an electronic apparatus having the same are provided. The voltage mode drivers may include a voltage regulator and a ripple compensation unit connected to an output terminal of the voltage regulator and configured to compare a current data bit of a data pattern with a previous data bit of the data pattern in synchronization with a clock signal input into the ripple compensation unit, generate a control signal when the current data bit is equal to the previous data bit, and apply a ground voltage to the output terminal in response to the control signal.

Abstract: A method and a device for generating a plasma in atmospheric-pressure, low-temperature conditions are described herein. The device described for the generation of the plasma comprises a first pair of electrodes, each of which separated by a dielectric layer and externally positioned with respect to a tubular duct where the gas flows, and a second pair of electrodes, also in this case each of which separated by a dielectric layer and externally positioned with respect to said tubular duct where the same gas flows downstream with respect to the first pair with respect to the direction of the flow. A high-frequency excitation is applied to the first pair of electrodes while a Radio-Frequency excitation is applied to the second pair of electrodes. The plasma generated in this manner emerges from the gas flow at the outlet of the transport duct.

Abstract: An apparatus is described herein. The apparatus includes a plurality of electrical components, wherein at least one component is to increase a total impedance at a port. The apparatus also includes a comparator, wherein the comparator is to determine an additional impedance from the plurality of electrical components at the port and adjust the impedance to maintain signal integrity along a trace to the port in response to a device being coupled with the port.