Patent application number | Description | Published |
20140197751 | Spectral Shift Control for Dimmable AC LED Lighting - Apparatus and associated methods involve operation of an LED light engine in which a relative intensities of selected wavelengths shift as a function of electrical excitation. In an illustrative example, current may be selectively and automatically diverted substantially away from at least one of a number of LEDs arranged in a series circuit until the current or its associated periodic excitation voltage reaches a predetermined threshold level. The diversion current may be smoothly reduced in transition as the excitation current or voltage rises substantially above the predetermined threshold level. A color temperature of the light output may be substantially changed as a predetermined function of the excitation voltage. For example, some embodiments may substantially increase or decrease a color temperature output by a solid state light engine in response to dimming the AC voltage excitation (e.g., by phase-cutting or amplitude modulation). | 07-17-2014 |
20140210352 | DRIVING CIRCUITRY FOR LED LIGHTING WITH REDUCED TOTAL HARMONIC DISTORTION - Conditioning circuits are provided for driving two or more LED groups using a rectified AC input voltage. The conditioning circuits uses analog circuitry to gradually and selectively activate the LED groups based on an instantaneous value of the rectified input voltage. The circuit includes a first series interconnection of a first LED group, a first transistor, and a first resistor, and a second series interconnection of a second LED group, a second transistor, and a second resistor. In one example, the second series interconnection is connected between a drain terminal and a source terminal of the first transistor, while in another example, the second series interconnection is connected between an anode of the first LED group and a source terminal of the first transistor. The first and second LED groups are selectively activated by the rectified voltage applied across the first series interconnection. | 07-31-2014 |
20140352379 | METHOD OF FORMING FERTILIZER - A system and method of forming high nutritional fertilizer form swine feces in a reservoir underneath a swine facility. A pump system has a pump that conveys the feces to a remote location where the swine feces first goes through a filter and then into a treatment tank. The treatment tank has sugars or carbohydrates therein that combine with oxygen provided by a aerating device within the treatment tank and ammonia produced by the swine feces to create byproducts, including proteins having high nutritional value that is used for fertilizing plants and animals. | 12-04-2014 |
20140355254 | Aquaculture Lighting Devices and Methods - A lighting assembly for enhancing the growth of aquatic life in an ecosystem and method of enhancing the growth of aquatic life in such an ecosystem. The assembly includes a vessel submerged within water of the ecosystem. A substrate is disposed within and surrounded by the vessel and provides electronics to provide a conditioned current to a plurality of light emitting diodes also contained on the substrate. The light emitting diodes emit light within the water of the ecosystem that provides for growth, not only in a larger volume of the ecosystem, but in addition enhances the growth of the aquatic life. | 12-04-2014 |
20150020445 | Architecture for Symbiotic Livestock and Biofuel Production - Methods and apparatus involve locating an algae production facility in close proximity to a livestock production facility whereby the outputs of one or both facilities promotes productivity levels in the facility. In an illustrative example, the algae production facility includes a bioreactor in fluid communication with the atmosphere inside, for example, a poultry facility, In some examples, the atmosphere inside the poultry facility may be around a substantially controlled temperature suitable for poultry. The atmosphere may further contain substantial Nitrogen-content suitable to promote algae growth. Various embodiments may symbiotically consume waste products from each facility to promote production of, for example, protein for food and algae, which may be used for animal feed, for example, and/or processed into fuel. In some examples, the algae production facility may be conveniently packaged into a module. In some examples, the module may be stored and shipped in a conventional shipping container. | 01-22-2015 |
20150061534 | Reduction of Harmonic Distortion for LED Loads - Apparatus and associated methods reduce harmonic distortion of a excitation current by diverting the excitation current substantially away from a number of LEDs arranged in a series circuit until the current or its associated periodic excitation voltage reaches a predetermined threshold level, and ceasing the current diversion while the excitation current or voltage is substantially above the predetermined threshold level. In an illustrative embodiment, a rectifier may receive an AC (e.g., sinusoidal) voltage and deliver unidirectional current to a string of series-connected LEDs. An effective turn-on threshold voltage of the diode string may be reduced by diverting current around at least one of the diodes in the string while the AC voltage is below a predetermined level. In various examples, selective current diversion within the LED string may extend the input current conduction angle and thereby substantially reduce harmonic distortion for AC LED lighting systems. | 03-05-2015 |
20150069932 | DC LED DRIVERLESS LIGHTING ASSEMBLY - A lighting assembly to be primarily used in an agricultural setting to illuminate farm animals with different colors of lighting. The assembly has a circuit for emitting light with different colored light emitting diodes that are arranged in networks of LEDs. The second and third networks are arranged in parallel to a first network of LED forming three separate current paths for lighting the LEDs. Each path has controllable impedance element arranged in series with the network of LED in that particular path and is controlled by a dynamic impedance control element that is coupled to the controllable impedance element to direct current through the individual paths of the circuit. | 03-12-2015 |
20150070915 | Apparatus for Hanging Lighting Assembly - A lighting assembly that has a heat. sink with an arcuate channel thereon around a circular member to receive wiring. During manufacturing the wiring is connected a printed circuit board. that engages the heat sink and is disposed through an opening in the heat sink within the arcuate channel. Then, during installation the wiring is wrapped around the circular member within the arcuate channel and held in place with an end cap. The wiring is then connected to wiring within a building allowing during which process stress and stain is transferred from the wiring to the heat sink to prevent damage to the connection point between the wiring and the printed circuit board. | 03-12-2015 |