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AssigneeLutron Electronics Co., Inc.
InventorsR. Scott Hanna, Woodie Flowers, David G. Luchaco, Stephen J. Yuhasz, Joel S. Spira, Philip R. Hall
Estimating the term…
An indicator lamp indicates the status of an electrically-powered load control system by providing dim light when the load power is off and a brighter light when the load power is on. In another embodiment, the lamp not only provides two levels of light to indicate whether or not power is on, but also provides a repetitive flash when power to the system is being controlled by remote control. The indicator lamp can also indicate a break in the load circuit. Depending on the embodiment, the break can cause the lamp to be either off or flashing, regardless of the position of the load power switch. Alternatively, a break in the load circuit can cause the lamp to provide substantially no light if the load power switch is in the "off" position, with full light in the "on" position.
For use with means for controlling power provided by a source to an electrical load, a circuit that senses whether power to the load is on and that includes a switching power supply, driven by said source, to provide power for an indicator lamp that emits a low light intensity when the power to the load is off and higher light intensity when power to the load is on, said switching power supply comprising a solid state switch means.
A lighting control system comprising
A system for controlling power provided by an a.c. source to an electrical load comprising, in combination,
Dependencies are inferred from the claim text.