Abstract:
An embodiment of the invention provides an apparatus for generating an auxiliary voltage in a ballast. The apparatus includes a transformer and a resonant circuit that is coupled to the input of the transformer. The apparatus also includes a first auxiliary circuit that is coupled to the auxiliary output of the transformer. The first auxiliary circuit is configured to generate a first output voltage V1. The apparatus also includes a second auxiliary circuit that is coupled to the resonant circuit and to the first auxiliary circuit. The second auxiliary output is configured to generate a second output voltage V2. At least one of the output voltages V1 and V2 provide an auxiliary output voltage Vaux of the transformer.
Abstract:
A ballast for a projector high-intensity discharge (HID) lamp includes an electrical connector and an inductor-inductor-capacitor (LLC) resonant converter. The electrical connector is receptive to electrical coupling with the projector HID lamp. The LLC resonant converter is to convert and transmit power received from a power source to the projector HID lamp via the electrical connector.
Abstract:
A method of operating an arc discharge lamp that has first and second electrodes is described. First, the first electrode is heated with a third electrode with a first arc until the first electrode temperature is sufficiently elevated to allow for thermionic emission. Then, a first voltage is applied between the first and second electrode at a voltage less than 1000 volts to create a second arc.
Abstract:
A system for displaying an image using a first sub-frame and a second sub-frame is provided. The system comprises an image shifter configured to cause the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position on the display surface, a sensor configured to detect a movement of the image shifter, and a controller configured to receive movement information associated with the movement of the image shifter from the sensor.
Abstract:
A light source module includes a lamp assembly, at least one temperature sensor for monitoring a temperature of the lamp assembly, and a processor coupled to the temperature sensor and the lamp assembly, the processor being configured to operate the lamp assembly at a reduced power level when the temperature is above a first temperature threshold.
Abstract:
The present invention relates to a method for cloning double-stranded DNA (ds DNA) molecules. In particular, the present invention relates to a method for cloning ds DNA molecules using terminal transferase to tail at least one 3′ termini of the ds DNA molecules with nucleotides and ligating the tailed ds DNA molecules with a vector. Also provided are kits and compositions that can be used for cloning ds DNA molecules.
Abstract:
A light source module includes a lamp assembly, at least one temperature sensor for monitoring a temperature of the lamp assembly, and a processor coupled to the temperature sensor and the lamp assembly, the processor being configured to operate the lamp assembly at a reduced power level when the temperature is above a first temperature threshold.
Abstract:
A projection system for both color and monochromatic displays includes a color wheel having filter portions of different colors and a clear portion; and a drive system configured to keep the color wheel moving while keeping a projection light beam shining through the clear portion of the color wheel.
Abstract:
A method of operating a multi-junction photovoltaic cell with junctions connected in series includes operating each junction at a different, respective maximum power point. A photovoltaic circuit includes: at least one multi-junction photovoltaic cell, comprising at least first, second, and third terminals; a first junction of the photovoltaic cell positioned intermediate the first and second terminals; a second junction of the photovoltaic cell positioned intermediate the second and third terminals; and a device for independently setting current flow through the first junction and the second junction to allow for maximum power point operation of each junction, the device for setting current flow being connected to the second terminal.
Abstract:
A ballast for a projector high-intensity discharge (HID) lamp includes a resonant converter and an auxiliary resonant circuit. The resonant converter is to convert and transmit power received from a power source to the projector HID lamp. The auxiliary resonant circuit is to selectively boost the power transmitted to the projector HID lamp.