Abstract:
A stud mounting bracket for a junction box includes a mounting extension extending outward from a longitudinal end margin of a main body. The mounting extension includes a mounting body connected to the longitudinal end margin of the main body and an extension tab connected to the mounting body. The extension tab is pivotable relative to the mounting body about an axis from a compact configuration to an extended configuration to increase the length of the mounting extension. A box mounting bracket for mounting a junction box on a stud mounting bracket includes first and second jaws. The first and second jaws engage the stud mounting bracket for use in attaching the box mounting bracket to the stud mounting bracket. The first and second jaws are resiliently deflectable both relative to the base and independent of one another when attaching the box mounting bracket to the stud mounting bracket.
Abstract:
A voltage sensing circuit includes an amplifier (12) having a first input (16) and an amplifier output, the first input being coupled to a node (20) comprising a virtual ground, and a first impedance element (8, 30) having an input structured to be coupled to the conductor and an output coupled to the first input of the amplifier through the node. The first impedance element is structured to cause a current signal having a current directly proportional to the voltage on the conductor and a substantially zero volt voltage to be provided to the first input of the amplifier through the node responsive to the voltage of the conductor being provided to the input of the first impedance element. The amplifier is structured to cause an output voltage that is directly proportional to the current of the current signal to be provided at the amplifier output.
Abstract:
A surface mount swing-type inductor component is configured to establish a non-uniform gap when assembled. The non-uniform gap produces swing-type inductor functionality in a compact package for higher current applications while being manufacturable at relatively low cost.
Abstract:
Dimming or illumination control of an LED-based lighting fixture can utilize a combination of pulse width modulation and constant current reduction. A light emitting diode driver can implement pulse width modulation to control light over a first light intensity range and constant current reduction over a second light intensity range. The first light intensity range can be less intense than the second light intensity range. Thus, the driver can practice constant current reduction for dimming at higher light intensities and pulse width modulation for dimming at lower light intensities.
Abstract:
A sensor head is described herein. The sensor head can include a first piece, where the first piece can include a body having an outer surface and an inner surface. The first piece can also include a light source cavity disposed in the body at the inner surface. The first piece can further include an optical device cavity disposed in the body at the inner surface. The first piece can also include an ellipsoidal cavity disposed in the body at the inner surface, where the ellipsoidal cavity is disposed adjacent to the optical device cavity. The first piece can further include a receiving device cavity disposed in the body adjacent to the inner surface that forms the ellipsoidal cavity. The first piece can also include at least one channel disposed in the body.
Abstract:
A method of controlling a voltage regulator (10) having a nominal input and a nominal output structured to operate in a forward power mode wherein power flows from the input to the output and a reverse power mode wherein power flows from the output to the input. The method includes sensing current flowing through the voltage regulator (10), determining a direction of power flow through the voltage regulator (10) based on the sensed current, determining a verified direction of power flow through the voltage regulator (10) by altering a voltage between the input and the output and analyzing an effect caused thereby on at least one of a voltage at the input and a voltage at the output, and selecting a voltage regulating scheme for controlling the voltage regulator (10) based on the verified direction of power flow.
Abstract:
A high current fusible disconnect switch device (50) includes a switch housing (52) configured to receive a pluggable touch-safe fuse module (54), and a dual slide bar actuator assembly (72) for opening and closing switch contacts. The dual slide bar elements are each coupled to bias elements that store and release energy to affect switch opening and closing operations. The switch opening and closing operation is multi-staged wherein only the first slider element (100) is movable in the first stage, and both the first and second slider elements (102) are movable in the second stage, the fusible disconnect switch device can well meet the demands of high current applications.
Abstract:
A lighting system can comprise an edgelit panel, for example a lightguide that may have a panel or slab shape with an edge that receives light from an array of light emitting diodes extending along the edge. The lightguide can guide the received light towards an opposing edge of the lightguide and gradually release light to provide illumination. An optic can manage light that reaches the opposing edge of the lightguide, for example via softening, spreading, concentrating, or diffusing the light. The optic can be mounted to or integrated in the opposing edge of the lightguide.
Abstract:
A wireless network system includes a primary wireless access point (AP) and a first access point node (APN) including a first lighting device with a first integrated wireless access point. The wireless network system further includes a second APN including a second lighting device with a second integrated wireless access point. The first APN and the second APN are wireless network clients to the primary AP and wirelessly communicate with the primary AP. The first APN is configured to wirelessly communicate with a first wireless network client. The second APN is configured to wirelessly communicate with a second wireless network client.
Abstract:
A processor receives data associated with a device. On the basis of the data associated with the device, the processor modulates a light from the artificial light source at a rate imperceptible to a human eye while detectable by a light sensor device. The modulated light is representative of the data associated with the device. The modulated light is detected, demodulated, and decoded by the light sensor device to retrieve the data associated with the device. Further, the data associated with the device is presented by the light sensor device to a user. In addition, the light sensor device is configured to receive input data from the user and communicate the input data to the processor via a wireless link. The processor is configured to receive the input data from the light sensor device and effect a change in a characteristic of the device based on the received input data.