Abstract: A control system for a refrigerator ice/water dispenser includes an actuation switch, at least one drive unit for releasing either ice or water, a motor activation relay that controls operation of the drive unit, and a power system having multiple power supplies for operating the control system, motor activation relay and drive unit(s). Preferably, the dispenser includes multiple actuation switches, e.g. a water activation switch and a water/ice activation switch, each having an associated activation relay for independently controlling the release of water and/or ice respectively. Current for initiating the drive unit activation relays must pass through a corresponding actuation switch in order to prevent unintended release of water and/or ice. Multiple processor circuits are preferably employed, with one processor circuit relaying to another processor circuit to enable drive unit activation.

Abstract: A control system for a refrigerator ice/water dispenser includes an actuation switch, at least one drive unit for releasing either ice or water, a motor activation relay that controls operation of the drive unit, and a power system having multiple power supplies for operating the control system, motor activation relay and drive unit(s). Preferably, the dispenser includes multiple actuation switches, e.g. a water activation switch and a water/ice activation switch, each having an associated activation relay for independently controlling the release of water and/or ice respectively. Current for initiating the drive unit activation relays must pass through a corresponding actuation switch in order to prevent unintended release of water and/or ice. Multiple processor circuits are preferably employed, with one processor circuit relaying to another processor circuit to enable drive unit activation.

Abstract: The illumination intensity of light emitting diode in an appliance display is maintained over time by automatically increasing an amount of electric current supplied to the light emitting diode, preferably incrementally, over the life of the light emitting diode. The automatic increase in current compensates for the gradual decay of the light emitting diodes over time, thereby allowing the light emitting diodes to maintain a constant illumination for the lifetime of the appliance.

Abstract: The illumination intensity of light emitting diode in an appliance display is maintained over time by automatically increasing an amount of electric current supplied to the light emitting diode, preferably incrementally, over the life of the light emitting diode. The automatic increase in current compensates for the gradual decay of the light emitting diodes over time, thereby allowing the light emitting diodes to maintain a constant illumination for the lifetime of the appliance.