Abstract: The invention comprises an overhead shade device adapted to be attached to a mobility aid. The invention has an elongate shaft having an upper end and a lower end. The shaft is attached to the mobility aid at the shaft's lower end in a manner that holds the shaft functionally vertically. A shade is attached to the upper end of the shaft. The shade may be an umbrella-type shade, or a fan, or other functionally horizontal surface that shades the user when deployed. In one embodiment of the invention, the perimeter of the shade when opened includes a base side and an arc of less than 360 degrees, and more preferably, an arc of less than about 200 degrees. The base side does not extend significantly beyond the outer edge of one side of the user and/or mobility aid when said shaft is held in a functionally vertical orientation. The area of the shade may be continuously variable between its limits.

Abstract: A semiconductor bilateral switch that minimizes the on-state resistance by making a common-source connection between the switch transistors internal to the package. Wire bonds internally connecting the source electrodes of the transistors also provide the function of one or both of a current sense resistor and fuse element.

Abstract: A monolithically integrated Schottky diode together with a high performance trenched gate MOSFET. A MOS enhanced Schottky diode structure is interspersed throughout the trench MOSFET cell array to enhance the performance characteristics of the MOSFET switch. The forward voltage drop is reduced by taking advantage of the low barrier height of the Schottky structure. In a specific embodiment, the width of the trench is adjusted such that depletion in the drift region of the Schottky is influenced and controlled by the adjacent MOS structure to increase the reverse voltage capability of the Schottky diode.