Abstract: A system includes a switching transistor that provides a current source to a load when activated by an input voltage and at least one Zener diode connected in parallel with the load that acts as a shunt regulator. The system may be especially suited for matching the controlled luminance of light emitting diodes to the controlled luminance of incandescent lighting. The system may also be useful for displays where a single master voltage regulator switch or controller controls the different types of lighting. The system may be packaged in a chip scale package for compactness, reduced weight, cost effectiveness, and higher efficiency and reliability.

Abstract: A system includes a switching transistor that provides a current source to a load when activated by an input voltage and at least one Zener diode connected in parallel with the load that acts as a shunt regulator. The system may be especially suited for matching the controlled luminance of light emitting diodes to the controlled luminance of incandescent lighting. The system may also be useful for displays where a single master voltage regulator switch or controller controls the different types of lighting. The system may be packaged in a chip scale package for compactness, reduced weight, cost effectiveness, and higher efficiency and reliability.

Abstract: A stationary dot matrix printer for printing both continuously variable and repetitive information on a moving substrate utilizing a continuously driven endless loop of ink absorbing web material and either a solvent laden wick to wipe the print wires or a composite web having a non ink-absorbing impact layer on the print head side of the web. A shuttle element drives the web reciprocally in a lateral direction to distribute the wear.

Abstract: A stationary dot matrix printer for printing both continuously variable and repetitive information on a moving substrate utilizing a readily replaceable ink applicator for applying ink to a blank foil adjacent to the printing station.