摘要:
A driver circuit for powering a load is disclosed. The driver circuit includes an input for connection to a ballast, a rectifier, a switch, and a fault circuit. The rectifier converts AC power received from the input into DC power. The rectifier includes a rectifier input. The switch is electrically connected to the rectifier input. The switch is activated to create a short circuit at the rectifier inputs in response to receiving an activation signal. The fault circuit is electrically connected to the switch. The fault circuit generates the activation signal in response to detecting at least one of an over voltage, an over temperature, and an over current condition of the driver circuit.
摘要:
A driver circuit for powering at least one light emitting diode (LED) in a dimming application is disclosed. The driver circuit includes an input for connection to a source of dimmed AC power and a rectifier for converting the dimmed AC power from the input into DC power. The driver circuit also includes a voltage bus filter for smoothening the DC power from the rectifier. The voltage bus filter includes at least one capacitor. The driver circuit also includes a feedback circuit in electrical communication with the rectifier. The feedback circuit causes the rectifier to continuously draw current from the inputs of the driver circuit.
摘要:
A driver circuit for powering a load is disclosed. The driver circuit includes an input for receiving for connection to a source of AC power, and a rectifier for converting the AC power from the input into DC power. The driver circuit also include a voltage bus filter, a high-frequency oscillator for generating a high-frequency AC signal, a resonant driver, a feedback circuit, and a high-frequency DC rectifier. The voltage bus filter smoothens the DC power from the rectifier, and includes at least one capacitor. The resonant driver is in electrical communication with the high-frequency oscillator, and limits a current of the high-frequency AC signal and produces a limited output voltage based on the high-frequency AC signal. The feedback circuit is in electrical communication with the resonant driver and the voltage bus filter, and maintains a charge on the capacitor of the voltage bus filter.
摘要:
A driver circuit for powering a load is disclosed. The driver circuit includes an input for connection to a ballast, a rectifier, a switch, and a fault circuit. The rectifier converts AC power received from the input into DC power. The rectifier includes a rectifier input. The switch is electrically connected to the rectifier input. The switch is activated to create a short circuit at the rectifier inputs in response to receiving an activation signal. The fault circuit is electrically connected to the switch. The fault circuit generates the activation signal in response to detecting at least one of an over voltage, an over temperature, and an over current condition of the driver circuit.
摘要:
A driver circuit for powering a load is disclosed. The driver circuit includes an input for receiving for connection to a source of AC power, and a rectifier for converting the AC power from the input into DC power. The driver circuit also include a voltage bus filter, a high-frequency oscillator for generating a high-frequency AC signal, a resonant driver, a feedback circuit, and a high-frequency DC rectifier. The voltage bus filter smoothens the DC power from the rectifier, and includes at least one capacitor. The resonant driver is in electrical communication with the high-frequency oscillator, and limits a current of the high-frequency AC signal and produces a limited output voltage based on the high-frequency AC signal. The feedback circuit is in electrical communication with the resonant driver and the voltage bus filter, and maintains a charge on the capacitor of the voltage bus filter.
摘要:
A lighting device is disclosed, and includes at least one lighting element for emitting light, an inner diffuser, and an outer diffuser. The inner diffuser defines a lighting cavity and an outer surface, where the at least one lighting element is located within the lighting cavity. The outer diffuser surrounds the inner diffuser. The outer diffuser defines an inner surface. The outer surface of the inner diffuser and the inner surface of the outer diffuser cooperate together to define a space between the inner diffuser and the outer diffuser. The inner diffuser and the outer diffuser spread and blend the light emitted by the at least one lighting element.
摘要:
A directional lighting fixture is disclosed. The directional lighting fixture includes a first housing, a lighting element, an optical element, and a driver board. The lighting element is located within the first housing and substantially aligned with a central axis of the directional lighting fixture. The lighting element is configured to generate visible light. The optical element is positioned directly in front of the lighting element. The optical element is configured to direct the visible light generated by the lighting element in a specific direction. The driver board is electrically coupled to the lighting element and includes an antenna element. The driver board is offset from the central axis of the directional lighting fixture. The antenna element is positioned to be at least flush with the lighting element.
摘要:
A driver circuit for delivering a generally constant voltage to a load is disclosed. The driver circuit includes a source of incoming AC power, a rectifier, and a constant voltage driver. The rectifier is connected to the source of incoming AC power and produces a DC voltage. The constant voltage driver receives the DC voltage from the rectifier. The constant voltage driver includes a selectively activated switching element for receiving the DC voltage, a controller, and an output line. The controller receives the DC voltage and is configured to send a drive signal to the switching element in order to activate the switching element. The output line provides the generally constant voltage to the load.
摘要:
A system for controlling a plurality of peripheral devices includes a portable electronic device and a plurality of peripheral devices in wireless communication with the portable electronic device. The portable electronic device includes a processor configured to connect to each of the plurality of peripheral devices one at a time based on round-robin scheduling. The processor is configured to execute an instruction for searching for a broadcast signal transmitted from a selected one of the plurality of peripheral devices. The processor is configured to execute an instruction to wirelessly connect with the selected one of the plurality of peripheral devices. The processor is configured to execute an instruction to send a control signal to the selected one of the plurality of peripheral devices. The processor is configured to execute an instruction to terminate the connection between the portable electronic device and the selected one of the plurality of peripheral devices.
摘要:
A lamp comprises an optical lens. The lamp further comprises a self-locking trim ring including a plurality of teeth. The self-locking trim ring is disposed over the optical lens. The lamp further comprises a heat sink. The heat sink has an inner chamber wherein the optical lens is disposed in the inner chamber. The heat sink also has an outer chamber disposed radially outwardly from the inner chamber. The outer chamber has a recess that engages the plurality of teeth. The self-locking trim ring secures the optical lens to the heat sink.