SYSTEM AND METHOD FOR DYNAMIC LOAD SHARING BETWEEN ELECTRONIC DISPLAYS

摘要

An electronic display assembly which allocates power to a plurality of displays without exceeding a maximum current level for the circuit is disclosed. An exemplary system preferably includes an AC current sensor, a power load sharing controller, ambient light sensors for each display, and a brightness controller for each display. A maximum total current draw may be selected. The ambient light contacting each display may be measured and a corresponding desired brightness caIculated. Depending on the present amount of current draw, the system determines if the displays can be driven at the desired brightness without exceeding the maximum total current draw. If yes, the displays are driven at their desired brightness. If no, the desired brightness for each display may be slightly reduced to prevent exceeding the maximum total current draw. Thus, as the ambient light varies between the displays, the available power may be shared.

主权项

1. An electronic display assembly comprising:
an incoming AC current sensor which measures the total current being drawn from the AC circuit; a power load sharing controller in electrical connection with the AC current sensor; a first display in electrical connection with the AC current sensor and having
an ambient light sensor in electrical connection with the power load sharing controller, anda brightness controller in electrical connection with the power load sharing controller; and a second display in electrical connection with the AC current sensor and having
an ambient light sensor in electrical connection with the power load sharing controller, anda brightness controller in electrical connection with the power load sharing controller.