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Multi-input dimming power supply for led lighting system

A technology for LED lighting and dimming, which can be used in light sources, electric light sources, lighting devices, etc., and can solve problems such as high cost

Inactive Publication Date: 2016-12-14
GE LIGHTING SOLUTIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding dimming functionality to existing LED lighting units requires replacement of existing LED lighting fixtures, resulting in high cost of such implementation
Also, most LED power supplies are only capable of receiving one of an analog control signal or a digital control signal to operate the LED lighting unit

Method used

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  • Multi-input dimming power supply for led lighting system

Examples

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Embodiment Construction

[0007] Referring now to the drawings, which are provided for purposes of illustrating exemplary embodiments only and not for the purpose of limiting the claimed subject matter, figure 1 A block diagram of a light source 2 (eg LED lighting fixture) is shown. The light source 2 comprises an LED source 4 consisting of one or more LEDs 6 . figure 1 Five LEDs 6 are shown in , but more or fewer LEDs are also conceivable. The set is typically formed from a plurality of subsets of LEDs, wherein the LEDs in each subset are interconnected in series. Subsets of LEDs interconnected in series are generally connected in parallel to form a set.

[0008] A voltage source 8 provides an AC line voltage 10 to a power supply 12 for the LED source 2 . Depending on the available line voltage, the voltage source 8 may comprise widely distributed voltages. For example, 120V and 277V are typically available in the United States, but other line voltages may be used to feed the ballast circuit. For...

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PUM

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Abstract

The name of the invention is "multi-input dimming power supply for LED lighting system". An LED lighting assembly includes a power supply to supply power to one or more LEDs and a dimming unit to control the power supplied to the one or more LEDs. The dimming unit includes a controller for determining the illuminance and brightness of the one or more LEDs by receiving control signals, and communicating with the controller for controlling the amount of power supplied to the one or more LEDs to achieve the determined Dimming circuit for illuminance and brightness.

Description

technical field [0001] The present exemplary embodiment corresponds to lighting techniques, lighting techniques, and associated techniques. It finds particular application in connection with multi-input dimming power supplies for light emitting diode (LED) based light sources and will be described with particular reference thereto. However, it should be appreciated that the present exemplary embodiment is also amenable to other similar applications. Background technique [0002] Systems for controlling electrical power to loads such as lamps are well known. The system includes a dimming function that allows an individual or the system to customize the amount of power provided to the lamp to achieve a desired amount of illumination and intensity. For example, some systems automatically adjust the illuminance of the lamps, while some have manual adjusters that allow individuals to choose the illuminance of the lamps. As LEDs become more popular and ubiquitous, it is desirab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 王鹏
Owner GE LIGHTING SOLUTIONS LLC