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US 2014/0368899 A1Published application
Control system trunk line architecture
AssigneeSage Electrochromics, Inc.
InventorBryan D. Greer
Life of this patent
Estimating the term…
Abstract
The present disclosure relates generally to a wiring system for controlling one or more smart windows located within a building, and methods for installing such systems and/or replacing higher wattage systems with such systems.
Claims20
A wiring system for controlling one or more smart windows located within a building, the system comprising:
- a building power supply configured to provide electrical power;
- a plurality of local power supplies, each local power supply having a wattage that is 100 watts or less and lower than the wattage of the building power supply and being configured to receive and convert power from the building power supply;
- a plurality of window control circuits, each window control circuit configured to control the transmissivity of one or more of the smart windows located within the building, and further configured to supply power to the one or more smart windows,
- wherein each local power supply is located closer to the point at which it is electrically connected to the building power supply than to the plurality of window control circuits to which said local power supply supplies power,
- wherein each window control circuit is located closer to each of the one or more smart windows which it controls than to the local power supply from which said window control circuit receives power, and
- wherein power from the building power supply is routed to at least one of the smart windows via a power line connecting one of the local power supplies to one of the window control circuits.
3 more elements
A method of converting an NEC Class 1 rated wiring system for controlling a plurality of smart windows into an National Electric Code Class 2 rated wiring system, said method comprising:
- providing a plurality of individual power supplies, each individual power supply having a wattage that is 100 watts or less;
- connecting each of said plurality of individual power supplies to an alternating current building power supply utilized in the National Electric Code class 1 rated wiring system;
- disconnecting a plurality of window control circuits utilized in the National Electric Code class 1 rated wiring system, each window control circuit configured to control the transmissivity of one or more of the smart windows located within the building, and further configured to supply power to the one or more smart windows;
- connecting each of the plurality of window control circuits to one of the individual power supplies.
- routing power from the building power supply to at least one of the smart windows via a power line connecting one of the individual power supplies to one of the window control circuits.
2 more elements
Dependencies are inferred from the claim text.