Abstract: A light with an occupancy sensor has a light fixture with a lamp and a power supply. The light fixture has a plurality of sidewalls defining a light fixture housing. An internal photo main sensor is mounted on a first sidewall of the light fixture. The internal main photo sensor is connected to a light controller and configured to send light sensor data to the light controller. An external bypass photo sensor is optionally mounted on a second sidewall of the light fixture. The external bypass photo sensor is configured to connect to the light controller and bypass the internal main photo sensor when the external bypass photo sensor is installed. The light controller is electrically connected to the external bypass photo sensor at least three contacts of the light sensor namely a first contact, a second contact and a third contact.

Abstract: An LED driver includes a first stage. The first stage converts AC power from an AC power source into a DC power source. The driver also includes a second stage that receives the DC power from the first stage. The driver has a buck converter with a constant current output. The buck converter is managed by a buck converter control chip. The buck converter control chip is controlled by a microprocessor with an associated EEPROM. The EEPROM stores settings for the LED driver can be changed either with a wired GUI port or wirelessly through a Zigbee interface. The microprocessor can select a value of a DC output current according to a value of the analog dimming input signal which has been translated using a predetermined programmable relationship between the input signal and the output current.

Abstract: An LED driver has a primary side regulation with at least one input connected to the AC power line, and at least two outputs. At least one output is for driving LEDs and at least one output is for providing auxiliary power for associated circuits. The driver is constructed using the flyback principle, having at least one flyback transformer which has at least one primary winding connected to a flyback switching transistor. At least one principal output winding is connected to the LED load, and at least one feedback winding is connected to a control chip. At least one auxiliary winding drives the auxiliary power output. The auxiliary winding has a coupling coefficient to said feedback winding which is greater than the coupling coefficient between the principal output winding and the feedback winding.

Abstract: A lighting controller comprising a single circuit sensor switch on a first circuit. At least one infrared PIR sensor is configured to cover 360 degrees. The at least one infrared PIR sensor is electrically connected to control the single circuit sensor switch. An acoustic sensor is electrically connected to control the single circuit sensor switch. A photo sensor is electrically connected to control the single circuit sensor switch. The photo sensor has an infrared remote controller and receiver for controlling the single circuit sensor switch. A second circuit sensor switch is on a second circuit that is connected to the first sensor. The second circuit sensor switch is configured to be connected to the single circuit sensor switch, the photo sensor, the acoustic sensor, and the at least one infrared PIR sensor so that the second circuit sensor switch further improves lighting efficiency.

Abstract: An LED driver comprising a first stage, wherein the first stage converts AC power from an AC power source into a DC power source. A second stage receiving the DC power source from the first stage and further comprising: a second stage step-down buck converter with a constant current output that receives power from the DC power source; and a second stage intelligent step-down LED driver chip that runs a step down buck converter that produces the constant current output to the external LED load. A companion microcontroller controls a second stage intelligent step down LED driver chip. The companion microcontroller provides programmable features for a user, wherein the programmable features provide user programmable variables to reprogram the LED Driver to alter default variables.

Abstract: An LED driver has a primary side regulation with at least one input connected to the AC power line, and at least two outputs. At least one output is for driving LEDs and at least one output is for providing auxiliary power for associated circuits. The driver is constructed using the flyback principle, having at least one flyback transformer which has at least one primary winding connected to a flyback switching transistor. At least one principal output winding is connected to the LED load, and at least one feedback winding is connected to a control chip. At least one auxiliary winding drives the auxiliary power output. The auxiliary winding has a coupling coefficient to said feedback winding which is greater than the coupling coefficient between the principal output winding and the feedback winding.

Abstract: A light engine driven directly from the AC power line has multiple series connected arrays of LEDs each with an associated current limiting transistor. The current from each current limiting transistor goes through a corresponding current sensing resistor and all these resistors are connected in series. The voltage across each current limiting transistor is applied across the next LED array so that as the voltage increases during the power line cycle, the next array becomes activated by the increasing voltage across the previous current limiting transistor. When this happens the previous current limiting transistor is turned off. This continues until all the arrays are activated at the peak of the line, at which point the array current is controlled by the last current limiting transistor.

Abstract: An LED driver comprising a first stage, wherein the first stage converts AC power from an AC power source into a DC power source. A second stage receiving the DC power source from the first stage and further comprising: a second stage step-down buck converter with a constant current output that receives power from the DC power source; and a second stage intelligent step-down LED driver chip that runs a step down buck converter that produces the constant current output to the external LED load. A companion microcontroller controls a second stage intelligent step down LED driver chip. The companion microcontroller provides programmable features for a user, wherein the programmable features provide user programmable variables to reprogram the LED Driver to alter default variables.

Abstract: A sensor lighting control system comprises a voltage input received from an AC source so as to be an AC voltage input. A voltage output for connection to lamps. A microcontroller controlling the voltage output and powered by the voltage input. A wireless mesh network transceiver connected to the microcontroller, where the wireless mesh network transceiver is configured to communicate with a wireless mesh network that can receive a global remote control and Internet, and the wireless mesh network transceiver is connected to a mesh network coordinator. Passive infrared motion sensors are connected to the microcontroller, where the passive infrared motion sensors include at least three passive infrared motion sensors. An acoustic sensor for detecting environmental acoustics is connected to the microcontroller, where a triggering level of the acoustic sensor is programmable via the mesh network controller to trigger the microcontroller to activate or deactivate the voltage output.

Abstract: A circuit for expanding a dynamic range. In one embodiment, the circuit includes: a transducer generating a signal current on an output terminal in response to a physical quantity, the signal current comprising an AC current and a DC current; a dynamic range enhancement circuit having a digital control signal input terminal and producing a variable opposition current in response to a digital signal applied to the digital control signal input terminal; an amplifier; an analog to digital converter in electrical communication with the amplifier; and a digital feedback circuit in communication with the output terminal of the analog to digital converter and in electrical communication with the digital control signal input terminal of the dynamic range enhancement circuit, wherein the opposition current from the dynamic range enhancement circuit is set substantially equal to the DC current portion of the signal current from the transducer.

Abstract: A phase control dimming LED driver is able to achieve complete stabilization of both TRIAC and trailing edge dimmers by using a large inductor to limit the inrush normally associated with the switching on of the TRIAC during each half cycle. Such a large inductor is not normally used because when a trailing edge dimmer is applied, a damaging voltage surge known as “ring up” can be generated when the trailing edge dimmer switch turns off. In this invention the inductor is placed after the input rectifier bridge and equipped with a diode and resistor which allow the energy in the inductor at the moment when a trailing edge dimmer switches off to be harmlessly dissipated.

Abstract: A modular paddle with a plastic frame structure, composite insert unit, tension brace, coupling bolt and nut mechanism, molded handle insert, and rolled rubber grip.

Abstract: The field of the invention relates to bicycle systems, especially to bicycle systems adapted for use with smartphones, to smartphones configured for use with bicycle systems, and to methods and to computer software for use with such bicycle systems or smartphones, and to servers configured to communicate with such bicycle systems or smartphones. According to a first aspect of the invention, there is provided a bicycle system including a bicycle, the bicycle system including a processor integral to the bicycle, the bicycle system further including a battery integral to the bicycle, wherein the processor is powerable by the battery, the bicycle system including a smartphone holder configurable to receive a smartphone and to connect the smartphone to the processor, wherein in use the smartphone holder is attachable to, and detachable from, the smartphone.

Abstract: A circuit is described which allows an LED driver to be controlled by a control signal in such a manner that at a predetermined dimming level the output current goes to zero instead of continuing to indefinitely low dim levels, thus avoiding the possibility of flickering or shimmer at extremely low dim levels. An electronic circuit for driving an LED load with a conventional LED drive circuit has inputs connected to a power source and output terminals providing regulated output power including a load disconnect switch in series with the LED load which has a control node responsive to a control circuit; and a control input which commands varying levels of input power. The control circuit is configured to be responsive to the control input so that when the control input corresponds to a certain continuous level of dimming, the load disconnect switch is opened.

Abstract: The present invention relates to a method of cleaning a surface contaminated with a hazardous drug product involving cleaning in succession with a quaternary ammonium solution and an isopropyl alcohol solution.

Abstract: An eyewear display assembly, according to various embodiments, comprises a base portion (e.g., a rectangular base portion), a marketing materials sheet, and an eyewear support portion (e.g., a rectangular eyewear support portion. In various embodiments, the eyewear support portion defines one or more eyewear support cutouts for providing lateral support to eyewear placed within the one or more eyewear support cutouts. The eyewear display assembly further comprises a suitable affixing mechanism, such as one or more magnets, for mounting the base portion adjacent the eyewear support portion while holding marketing material sheet between them. The base portion may be configured to support one or more pairs of eyewear as the one or more pairs of eyewear are disposed at least partially within the one or more eyewear support cutouts.

Abstract: In various embodiments, systems, methods, and techniques are disclosed for generating a collection of clusters of related data from a seed to assist in detection of financial malfeasance. Seeds may be generated based on seed generation strategies or rules. Clusters may be generated by, for example, retrieving a seed, adding the seed to a first cluster, retrieving a clustering strategy or rules, and adding related data (such as trades, emails or chat messages) and/or data entities to the cluster based on the clustering strategy. Various cluster scores may be generated based on attributes of data in a given cluster, and the clusters may be displayed and ranked based on their scores. Various embodiments may enable an analyst to review clusters of trades, emails and/or chat messages that are the most likely to reveal financial malfeasance.

Abstract: A circuit is described which allows an LED driver to be controlled by a control signal in such a manner that at a predetermined dimming level the output current goes to zero instead of continuing to indefinitely low dim levels, thus avoiding the possibility of flickering or shimmer at extremely low dim levels. An electronic circuit for driving an LED load with a conventional LED drive circuit has inputs connected to a power source and output terminals providing regulated output power including a load disconnect switch in series with the LED load which has a control node responsive to a control circuit; and a control input which commands varying levels of input power. The control circuit is configured to be responsive to the control input so that when the control input corresponds to a certain continuous level of dimming, the load disconnect switch is opened.

Abstract: A circuit for expanding a dynamic range. In one embodiment, the circuit includes: a transducer generating a signal current on an output terminal in response to a physical quantity, the signal current comprising an AC current and a DC current; a dynamic range enhancement circuit having a digital control signal input terminal and producing a variable opposition current in response to a digital signal applied to the digital control signal input terminal; an amplifier; an analog to digital converter in electrical communication with the amplifier; and a digital feedback circuit in communication with the output terminal of the analog to digital converter and in electrical communication with the digital control signal input terminal of the dynamic range enhancement circuit, wherein the opposition current from the dynamic range enhancement circuit is set substantially equal to the DC current portion of the signal current from the transducer.