Abstract: Exemplary semiconductor devices include eight transistors and two capacitors interconnected in specific configurations. A display device may include a driver circuit having such a semiconductor device. An electronic device may also include such a semiconductor device and an input unit, LED lamp or speaker.

Abstract: A system for controlling a dimming function of a display element of a host vehicle is disclosed. The system comprises a display element configured to provide a rearward view from the host vehicle and a sensor directed forward relative to the host vehicle. A controller is in communication with the sensor and the display element. The controller is configured to identify a taillight of a detected vehicle from data received from the sensor. Based on the data received from the sensor, the controller calculates a passing period for the host vehicle to pass the detected vehicle. Based on the passing period the controller adjusts a display property of the display element to limit a glare displayed by the display element.

Abstract: A miniature Hall current plasma source apparatus having magnetic shielding of the walls from ionized plasma, an integrated discharge channel and gas distributor, an instant-start hollow cathode mounted to the plasma source, and an externally mounted keeper, is described. The apparatus offers advantages over other Hall current plasma sources having similar power levels, including: lower mass, longer lifetime, lower part count including fewer power supplies, and the ability to be continuously adjustable to lower average power levels using pulsed operation and adjustment of the pulse duty cycle. The Hall current plasma source can provide propulsion for small spacecraft that either do not have sufficient power to accommodate a propulsion system or do not have available volume to incorporate the larger propulsion systems currently available. The present low-power Hall current plasma source can be used to provide energetic ions to assist the deposition of thin films in plasma processing applications.

Abstract: The embodiments relate to a method for integrating a venting system in a circuit board. Three or more interconnected accesses (VIAs) are formed in a printed circuit board (PCB). The VIAs are interconnected by routing a bi-planar channel spanning through the VIAs. The channel includes at least two sections, including a first channel section at a first plane extending from the first VIA to the second VIA and a second channel section at a second plane extending from the second VIA to the third VIA. The first and second sections are at different planar levels.

Abstract: A light emitting diode (LED) direct AC drive (DACD) circuit includes LED groups that are connected in series. An LED DACD controller includes current regulators that regulate the LED current of the LED groups. The LED DACD controller measures an on-time of an LED group, and regulates the LED current of the LED groups based on the measured on-time of the LED group.

Abstract: An LED driver circuit provides a direct input line sensing step dimming interface for controlling an LED load. The LED driver circuit includes an input voltage source, a first input line, a second input line, and a neutral line. A diode bridge is coupled to the neutral line and to each of the first line switch and to the second line switch at a side of each opposite to the input voltage source. The LED driver circuit includes a first isolation circuit and a second isolation circuit and a microcontroller having a first sense input and a second sense input. The microcontroller receives at least one of the first sense input and the second sense input from the first and second isolation circuits. The microcontroller controls LED driver circuit output to a load according to the received sense input.

Abstract: A lighting control system allows user control of the color features of controllable light fixtures. Controlled color features may include the color, color temperature, tint, or other qualities related to the color of the light. Control of the color features may be independent from control of the intensity of the light fixtures. The system may use light-emitting diode (LED) light fixtures, or fluorescent or incandescent light fixtures. The system may enable control of the color feature using a controllable driver/ballast and a dimmer control. The color feature may be adjusted along a color path of adjacent values in a suitable color space model.

Abstract: Calculating ambient light in a space by obtaining a top view image of the space from an array of pixels, and identifying an object in the image and assigning weights to pixels from the array of pixels based on locations of the pixels relative to the identified object in the image, where object may include a reflective surface, where ambient light in the space is calculated based on the weighted pixels.

Abstract: A lighting system includes a lighting device and a dimming controller. The lighting device has a support structure that supports multiple lighting zones. Each lighting zone includes one or more lighting sources. The dimming controller is connected with multiple dimmers supported by the lighting device. Each of the lighting sources is connected to a corresponding dimmer from the multiple dimmers. The dimming controller sends a controlled setting for one or more of the lighting zones to the multiple dimmers.

Abstract: According to one embodiment, a semiconductor apparatus includes a block and a controller. The block includes a logic circuit and a routing module. The routing module includes a plurality of first wiring lines, a plurality of second wiring lines, switches, and a wiring line switching circuit. The switches are arranged to perform connection and disconnection between the first wiring lines and the second wiring lines. The wiring line switching circuit is arranged to switch a wiring line for transmitting the signal, among the first wiring lines and the second wiring lines. The controller is arranged to control driving of the switches and the wiring line switching circuit.

Abstract: A power supply including: an AC input power connector; an AC-DC converter circuit coupled to the AC input power connector; a constant-current constant-voltage control unit configured to receive DC power from the AC-DC converter circuit; a light emitting diode (LED) lamp unit configured to receive power from the constant-current constant-voltage control unit; and a capacitor coupled in parallel with the LED lamp unit.

Abstract: A light-emitting diode (LED) device including an LED module and a driver is provided. The LED module includes a voltage sensing module and an LED. The voltage sensing module generates a reference voltage. The driver includes a power converting module, a current processing module, a feedback module and a controller module. The power converting module converts an alternating current (AC) into a driving current for driving the LED to emit a light. The current processing module converts the driving current into a sensing voltage. The feedback module compares the sensing voltage with a reference voltage and outputs a level signal according to a magnitude relationship of the sensing voltage and the reference voltage. The controller module outputs a pulse width modulation (PWM) signal to the power converting module according to the level signal. The power converting module controls the magnitude of the driving current according to the PWM signal.

Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.

Abstract: An LED driver implements a first constant-current drive scheme for a first range of sensed voltages up to a threshold voltage. After this, a second drive scheme is implemented with a current lower than the constant current of the first drive scheme.

Abstract: A dual color temperature-controlling system, electrically connected to a brightness controlling module of a street light, includes a power supply controlling module, a switching module, a first and a second color temperature light emitting modules, and a comparing module. The switching module is electrically connected to the power supply controlling module. The first and the second color temperature light emitting modules are electrically connected to the switching module. The comparing module is electrically connected to the switching module. A voltage-type operating signal sent from the brightness controlling module is received by the comparing module for comparison, and a switching signal is then sent to the switching module. The switching module is switched for lighting up the first or second color temperature light emitting module depending on the switching signal. Thereby, color temperature of the street light is changed so as to enhance safety of road occupant.

Abstract: Provided is a circuit for controlling a level of brightness of a light electrically coupled to a dimming circuit including control leads configured to provide a dimming control voltage to the dimmable driver, the dimming control voltage having a permissible voltage range. The circuit includes a photo sensor for detecting an ambient light level in the vicinity of the light and a clamp controller for selectively reducing the dimming control voltage to a clamped voltage range less than the permissible voltage range. Also included is a feedback controller for adjusting the dimming control voltage in response to a detected ambient light level, the dimming control voltage being within the clamped voltage range.

Abstract: Disclosed are methods and devices, among which is a device that includes a finite state machine lattice. The lattice may include a counter suitable for counting a number of times a programmable element in the lattice detects a condition. The counter may be configured to output in response to counting the condition was detected a certain number of times. For example, the counter may be configured to output in response to determining a condition was detected at least (or no more than) the certain number of times, determining the condition was detected exactly the certain number of times, or determining the condition was detected within a certain range of times. The counter may be coupled to other counters in the device for determining high-count operations and/or certain quantifiers.

Abstract: A programmable logic device (PLD) includes a programmable fabric, a plurality of input/output (I/O) blocks, and a plurality of high voltage power field effect transistors (FETs). The PLD can be programmed to connect one or more of the plurality of I/O blocks, one or more of the plurality of high voltage power transistors via the programmable fabric. Each of the plurality of high voltage power transistors includes a drain pad and a source pad that are exposed via external pins of the PLD.

Abstract: A lighting fixture includes a light source, a housing coupled to the light source, communications circuitry, and control circuitry. The housing includes an opening through which light from the light source is provided. The control circuitry includes a memory storing instructions, which, when executed by the control circuitry cause the lighting fixture to adjust one or more light output parameters of the light source, and store fixture location information describing a location of the lighting fixture in response to receipt of the fixture location information from the communications circuitry. By storing fixture location information describing the location of the lighting fixture, the location of the lighting fixture may be used to send messages to lighting fixtures in the same location and/or retrieve data from lighting fixtures in the same location, which may be beneficial in many circumstances.

Abstract: A lighting control device having a first wireless communicator that wirelessly communicates with a lamp; first memory that stores identification information identifying the lighting control device; a first controller that transmits a control command for controlling the lamp to the lamp via the first wireless communicator; an operator interface suspended under its own weight; and a power generator that is connected to the operator interface, generates power from mechanical energy produced by the operator interface being moved in a predetermined direction, and supplies the power to the first controller, the first memory, and the first wireless communicator. Further, when the operator interface is moved and the first controller receives the power, the first controller reads the identification information from the first memory, transmits the identification information and the control command to the lamp via the first wireless communicator, so as to control the lamp.