Controller for inserting signaling transitions on line voltage

A controller and line voltage technology, applied in the field of controllers, can solve problems such as complex hardware, difficulty in satisfying power factor and total harmonic distortion, limited dimming percentage, etc.

Inactive Publication Date: 2017-03-22
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to meet power factor and total harmonic distortion (THD) requirements with these dimming schemes
Dimming percentages are limited, and the hardware required to implement these schemes is complex

Method used

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  • Controller for inserting signaling transitions on line voltage
  • Controller for inserting signaling transitions on line voltage
  • Controller for inserting signaling transitions on line voltage

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Embodiment Construction

[0027] In the following detailed description, for the purpose of explanation and not limitation, representative embodiments disclosing specific details are set forth in order to provide a thorough understanding of the present teachings. However, it will be obvious to those skilled in the art who have benefited from the present disclosure that other embodiments according to the present teaching that deviate from the specific details disclosed herein are still within the scope of the appended claims. In addition, the description of well-known devices and methods may be omitted so as not to obscure the description of the representative embodiment. Such methods and devices are clearly within the scope of this teaching.

[0028] figure 1 Illustrated is an exemplary embodiment of a lighting system including a controller that controls the dimming level of the lighting unit. The lighting system 10 includes an AC line source 100 that can be connected to a plurality of lighting units 120-...

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Abstract

A controller connected to the line voltage includes an autotransformer providing a nominal line voltage at a first terminal terminal and a signaling voltage at a transformer tap. The first switch has a first switch terminal connected to the first terminal terminal of the autotransformer and a second switch terminal connected to the output contact of the controller. The second switch has a first switch terminal connected to a transformer tap of the autotransformer and a second switch terminal connected to the output node. The switch controller is configured to output first and second switch signals in response to the control signal to control by selectively connecting the nominal line voltage at the first terminal terminal and the signaling voltage at the transformer tap to the output node The first and second switches insert signaling transitions on the line voltage.

Description

Technical field [0001] The present invention is generally directed to a controller for inserting signaling transitions on line voltage. More particularly, the various inventive devices disclosed herein relate to controllers and lighting systems for inserting signaling transitions on the line voltage to control the dimming level of the lighting source. Background technique [0002] Many lighting applications utilize dimmers. It can be controlled by standard control interfaces such as digital addressable lighting interface (DALI), digital multiplexing (DMX) interface or 0-10V dimming interface or through such as leading and trailing edge dimming schemes and power line communication schemes. The line-side control method to achieve dimming. Although well established, each of these interfaces and schemes has limiting and undesirable characteristics. [0003] For example, control interface standards such as DALI, DMX, or 0-10V require the installation of control lines in addition to p...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H05B33/08H05B37/02H05B41/392H05B44/00
CPCH05B41/3927H03K17/56H05B45/10H05B47/16Y02B20/40H05B47/19H05B45/37H05B47/185H05B45/60
InventorA.D.斯罗特里亚N.希拉斯
OwnerSIGNIFY HLDG BV