Abstract: A communication device can be used for communicating between a power equipment controller and power equipment devices of a high-voltage power electronics system. The communication device includes a controller interface communicatively coupled with the power equipment controller, an RF module coupled to the controller interface, and an antenna port coupled to the RF module. A mounting structure is configured to attach the communication device to a valve hall containing the power equipment devices. The mounting structure is permeable for RF signal communication between the communication device and power equipment devices in the valve hall. The mounting structure has a low voltage side to enable placement of the controller interface, the RF module and the antenna port so as to be shielded from disturbances due to high voltages inside the valve hall.

Abstract: A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

Abstract: A vehicle interior illumination system includes: a master control unit; slave control units configured to perform multiplex communication with the master control unit and control a light source mounted on a vehicle in accordance with an instruction of the master control unit; a multiplex communication line configured to connect the master control unit to the slave control units; and a wireless control unit that is connected to the multiplex communication line and configured to perform wireless communication with an external device. The wireless control unit is configured to receive setting information on vehicle interior illumination from the external device and transmit the setting information to the master control unit via the multiplex communication line. The master control unit is configured to transmit a control instruction to the slave control unit to control the light source in accordance with the setting information.

Abstract: A lighting apparatus for a motor vehicle includes a processing module configured to receive, process and send signals from a data bus of the motor vehicle, and a light-emitting diode (LED) unit configured to emit light of adjustable brightness and prescribed color locus. The LED unit has a microcontroller and a plurality of LEDs, where the microcontroller and the LEDs are surrounded by a package of the LED unit. The LED unit is further configured to communicate bidirectionally with the processing module so that a present status value of the LED unit, which status value is representative of a functionality of the LED unit, is ascertainable by the LED unit and the processing module.

Abstract: An electric field sensor includes a probe, a cylindrical probe guide, an insulating member, a preload spring and a connector. The probe serves as an inner conductor of a coaxial transmission path and has a portion forming a monopole antenna at a tip end to be in constant contact with a microwave transmission window by a pressing force of a built-in spring thereof. The probe guide is disposed at an outer side of the probe and serves as an outer conductor of the coaxial transmission path. The insulating member is disposed between the probe and the probe guide. The preload spring preloads the probe guide downward and presses the probe guide so that the tip end of the probe guide comes in constant contact with the planar slot antenna. The connector is connected to the probe and the probe guide to connect coaxial signal cables for extracting signals.

Abstract: The present disclosure provides lighting systems suitable for generating white light. The lighting systems can have a first lighting channel configured to produce a first white light having a first color point and a first spectral power distribution, a second lighting channel configured to produce a second white light having a second color point and a second spectral power distribution, and a control system configured to independently change the intensity of each of the first lighting channel and the second lighting channel. The first lighting channels can have LEDs having an emission with a first peak wavelength of between about 440 nm and about 510 nm. The second lighting channels can have LEDs having an emission with a second peak wavelength of between about 380 nm and about 420 nm. The disclosure provides methods of generating white light using the lighting systems described.

Abstract: A dimmer includes a power supply circuit including a current limiter and a switch, the power supply circuit electrically coupled to a power source and a load, where current is channeled via the current limiter during a power-on of the dimmer and via the switch during operation of the dimmer after the power-on, a triode for alternating current (TRIAC) control circuit electrically coupled to the power source and the load, where the TRIAC control circuit is structured to control operation of a TRIAC configured to control an amount of power supplied to the load; and a processing unit electrically coupled to the power supply circuit and the TRIAC control circuit, where the processing unit is structured to control the switch and the TRIAC control circuit after the power-on.

Abstract: A ceiling panel system includes a panel assembly having a ceiling surface and first and second conductive structures spaced from each other and a first application module configured to engage one of a plurality of locations disposed over the ceiling surface. The first application module includes a wireless receiver, a first contact configured to engage the first conductive structure, and a second contact configured to engage the second conductive structure. The first conductive structure delivers power to the application module. The system also includes a second application module configured to engage a different one of the plurality of locations. The first application module is configured to receive at the wireless receiver wireless commands, and, responsive to receiving wireless commands at the wireless receiver, the first application module transmits the received commands over the first conductive structure to the second application module.

Abstract: A LED lighting apparatus includes a housing, a bulb shell, a driver plate, a light source plate, and a driver circuit. The bulb shell is connected to the housing. The bulb shell and the housing form a container space. The driver plate is set in the container space. The light source plate is set in the container space. The light source plate includes a base plate and a light emitting component on the base plate. The driver circuit includes a rectifier circuit and a constant current driver chip which are electrically connected to each other. The rectifier circuit is set on the driver plate. The constant current driver chip is set on the light source plate.

Abstract: A powering circuit for a diode light source includes an inductor charged through an on/off switch. The charging occurs during a charging cycle for a controllable amount of time when the on/off switch is closed. The energy of the charged inductor is used to power the semiconductor light source by opening the on/off switch. In such a driving configuration, the ringing is nearly constant and thus may be suppressed using an appropriately configured circuit.

Abstract: A lighting apparatus includes a lens module, a light source plate, a first set of LED modules ad a second set of LED modules, and a driver. The first set of LED modules are located at first positions of the light source plate. The second set of LED modules are located at second positions of the light source plate. The driver controls the first set of LED modules and the second set of LED modules for generating a first output light pattern and a second output light pattern. The first light pattern and the second light pattern are mixed to generate one of multiple projected shapes on a projected surface controlled by the driver.

Abstract: A lighting device which is controllable in respect of color temperature as well as brightness has a control circuit electrically coupled to AC voltage source. The control circuit includes first and second control circuits, the first control circuit turns the light emitting device on and off and adjusts brightness of the light emitting device. The second control circuit determines whether the AC voltage source is on during a predetermined period, and if determined to be on, adjusts color temperature of the light emitting device.

Abstract: A light tube apparatus includes a tubular housing, a LED module, an EMI circuit, a rectifier circuit, a filter circuit, a conversion circuit, a safety circuit and a PWM modulation circuit. The safety circuit is connected to a dimming signal from a dimmer for preventing an incorrect connection when the dimmer is connected in wrong direction causing loop breakage. The PWM modulation circuit is connected to the conversion circuit and the safety circuit for performing a pulse width modulation for the dimming signal supplied to the conversion circuit for adjusting a luminance level of the LED module.

Abstract: A two-wire dimming lighting device includes an encoding circuit, a decoding circuit, a light source driving circuit, and an LED light emitting circuit. The encoding circuit wirelessly receives the dimming instruction, encodes an AC power according to the dimming instruction, and then outputs an encoded AC power. The decoding circuit receives the encoded AC power and then decodes the encoded AC power to obtain a light source driving instruction. The light source driving circuit receives the light source driving instruction and controls the changes of light emission of the LED light emitting circuit according to the light source driving instruction. The encoding circuit transmits the encoded AC power to the decoding circuit through a two-wire AC transmission wire.

Abstract: This application discloses feeding devices, antennas, and electronic devices. In one implementation, a feeding device comprises a phase shifter, a combiner, and a jumper component, wherein the phase shifter has a first cavity, the combiner has a second cavity adjacent to and connected to the first cavity, and the phase shifter is connected to the combiner through the jumper component.

Abstract: Described herein are embodiments for systems and methods LED driver. In one or more embodiments, the LED driver may operate in a boost mode to charge a capacitor using a power source or in a boost mode to use the charged capacitor to provide current to a load, such as an LED string. In one or more embodiments, the LED driver uses a single inductor for boost mode operation or buck mode operation. Such embodiments simplify the LED driver and therefore provide an economic advantage. In one or more embodiments, the power source is disconnected in the buck mode, such that the capacitor may be discharged to a low voltage. Therefore, the capacitor may need smaller capacitance to deliver the same discharge energy which otherwise requires a capacitor with larger capacitance.

Abstract: An emergency lighting system uses a wireless mesh network to control the dimming of luminaires in the event of a power failure or a power outage. Luminaires are commissioned to different dimming power levels depending on localized lighting needs during the power failure of power outage.

Abstract: The present invention provides a constant-current-source driving system, comprising: a power source module, a primary working load module, a secondary working load module, and a weighting controller. The primary working load module is connected to the power source module in order to be driven by electricity provided by the power source module. The secondary working load module is connected to the primary working load module and parallel-connected to a variable-impedance controller.

Abstract: The present invention provides a smart dummy-load electricity consumption system, comprising: a switching detection module and a discharge module. The switching detection module comprises a power source input module and a filter circuit provided at an output of the power source input module, wherein the filter circuit supplies electricity to a working unit, the output of the power source input module is connected with a first controller, and the filter circuit has an output connected with a second controller. The discharge module comprises a switch unit connected to the working unit and a logic gate for turning on or off the switch unit, wherein the logic gate has an input end connected to an output end of the first controller, has an input end connected to an output end of the second controller, and is configured to output a control signal for turning on or off the switch unit.

Abstract: An electronic candle system for providing a sanitary and reusable birthday candle solution includes a plurality of electronic candles and a remote control. Each electronic candle comprises a body and a translucent cover coupled to a body top side. A light is coupled to the body top side and extends within the cover. A receiver is coupled within the body. The remote control a transceiver coupled within a remote housing. The transceiver is in operational communication with the receiver of each electronic candle of the plurality of electronic candles. A plurality of controls is coupled to the remote housing and is in operational communication with the transceiver. An air sensor is coupled to the remote housing to be blown on by a user to turn off the light of each of the plurality of electronic candles.