Self-powered modification kit for hid luminaire installations
First Claim
1. An intelligent High Intensity Discharge (HID) lamp dimming system which obtains its internal electrical supply power and power to operate external sensors directly from the current supplied to the controlled HID lamp comprising:
- a. a power extraction circuit having a current operated power transformer incorporated within the unit whose primary is effectively connected in series with one of the HID lamp supply leads without access to the interior of the HID lamp ballast. The isolated, low voltage from the transformer secondary is sufficient to power the internal circuitry of the control device as well as provide external sensor power even during HID lamp start-up and dimming periods. b. a series, reactive component when inserted by said electronic control device, causes a reduction of input power to high intensity discharge lamp and concurrently reduces said lamp lumen output. c. a means for controlling the insertion of said series, reactive component when predetermined conditions have developed thereby reducing the input power to High Intensity Discharge lamp, resulting in an electrical energy saving.
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Accused Products
Abstract
A lamp dimming system, designed to be added to existing HID fixtures with an absolute minimum of installation time and no external wiring is disclosed. Any existing ballast may be converted to a bi-level device for intelligent energy savings. The modification kit is wired in series with one of the lamp leads to effect both powering of the unit and control of the lamp. All timing and control is on an individual lamp basis so that the lamp temperature stabilization is completed before dimming is attempted. No external wiring, either to power the control unit or to effect control of the lamp dimming is required. Several versions are described. In one version the unit senses an occupant and stops dimming both of itself and other lamps in a network. In another version the unit receives a radio command to dim or brighten, which is inhibited until the initial power up delay sequence is completed. Self powered versions of both receiver and transmitter implementations are included.
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Citations
4 Claims
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1. An intelligent High Intensity Discharge (HID) lamp dimming system which obtains its internal electrical supply power and power to operate external sensors directly from the current supplied to the controlled HID lamp comprising:
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a. a power extraction circuit having a current operated power transformer incorporated within the unit whose primary is effectively connected in series with one of the HID lamp supply leads without access to the interior of the HID lamp ballast. The isolated, low voltage from the transformer secondary is sufficient to power the internal circuitry of the control device as well as provide external sensor power even during HID lamp start-up and dimming periods. b. a series, reactive component when inserted by said electronic control device, causes a reduction of input power to high intensity discharge lamp and concurrently reduces said lamp lumen output. c. a means for controlling the insertion of said series, reactive component when predetermined conditions have developed thereby reducing the input power to High Intensity Discharge lamp, resulting in an electrical energy saving. - View Dependent Claims (2, 3, 4)
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Specification