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Method, system and smart dimmer for managing lighting loads

A lighting load and dimmer technology, applied in the field of intelligent dimmers, can solve problems such as lighting power density limitations

Active Publication Date: 2016-10-12
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The standard is continuously updated as new lighting technologies are developed, setting lighting power density limits for different types of facilities

Method used

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  • Method, system and smart dimmer for managing lighting loads
  • Method, system and smart dimmer for managing lighting loads
  • Method, system and smart dimmer for managing lighting loads

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Embodiment Construction

[0013] While the making and using of various embodiments of the invention are discussed in detail below, it should be appreciated that the invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

[0014] First refer to figure 1 , shown here is a system for managing lighting power density, shown schematically and generally designated 10 . The system 10 includes smart dimmers 12, 14 having switches 16, 18 and led displays 20, 22 supporting track lighting components 24, 26 arranged in rooms 28, 30, respectively. For the track lighting components 24 in the room 28, the lighting loads 32a, 34a, 36a are mounted in corresponding boxes 38a, 40a, 42a via rods 44a, 46a, 48a which are slidably mounted to track 50a. Each lighting load 32a-36a may be connected to a separat...

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Abstract

The present invention discloses an intelligent dimmer (12) for managing a lighting load (172) coupled to an AC voltage source (174). In particular embodiments, a smart dimmer (12) may be incorporated into the system (10) and method (220-228) for managing lighting power density. In one embodiment of the smart dimmer (12), a control circuit (170) is coupled between a lighting load (172) and an AC voltage source (174). A threshold load current value is established for the lighting load (172). The line voltage sensor (178) reads the line voltage across the lighting load (172), and the load sensor (178) samples the load current supplied to the lighting load (172). A control circuit (170) compares the sampled load current to a threshold load current to determine the occurrence of a cut-off condition, and in response thereto, selectively adjusts the line voltage applied to the lighting load (172).

Description

technical field [0001] The present invention relates generally to energy management, and more particularly to an intelligent dimmer for managing one or more lighting loads to avoid exceeding a desired lighting power density. Background technique [0002] The green movement and associated mandatory energy regulations are defining maximum allowable lighting power densities, expressed in watts per square foot (W / sqft), for a given type of occupancy / space. One such basic standard to which efficient lighting systems adhere is the American Society of Heating, Refrigeration and Air-Conditioning engineers (ASHRAE) 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings (ASHRAE ) 90.1, energy standards for buildings other than low-rise residential buildings). The standard, which is continuously updated as new lighting technologies are developed, sets lighting power density limits for different types of facilities. Municipalities often incorporate ASHRAE 90.1 into ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
CPCH05B47/175Y02B20/40
Inventor G·W·珀尔曼P·R·罗杰斯D·L·克卢斯曼
Owner SIGNIFY HLDG BV
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