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Control of isolated auxiliary and dali power supplies for sensor-ready led drivers

A technology of power supply voltage and auxiliary voltage, which is applied in the field of lighting drivers and can solve problems such as short circuit of SR bus

Active Publication Date: 2022-01-28
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the SR bus is pulled low, it is equivalent to shorting the SR bus

Method used

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  • Control of isolated auxiliary and dali power supplies for sensor-ready led drivers
  • Control of isolated auxiliary and dali power supplies for sensor-ready led drivers
  • Control of isolated auxiliary and dali power supplies for sensor-ready led drivers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] figure 1 A high level block diagram of the connected lighting system 100 is illustrated. The lighting system 100 includes a lighting driver 110 , a lighting unit 120 , a lighting control unit 130 and a wireless communication transceiver and antenna 140 .

[0043] Here, lighting driver 100 may be connected to receive power from a power source, such as an AC mains power supply, and may be configured and formatted for power to drive lighting unit 120 , which may be a light emitting diode (LED) lighting unit. The lighting control unit 130 may communicate with the lighting driver 110 via a digital addressable lighting interface (DALI) bus (referred to herein as a sensor ready (SR) interface) with a built-in power supply. The lighting control unit 130 may receive its power from the lighting driver 110 as an auxiliary voltage and an SR voltage supporting a DALI bus through which the lighting control unit 130 may communicate with the lighting driver 110 . In this case, the li...

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PUM

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Abstract

A lighting driver (300, 400) for driving at least one lighting device (120), comprising a control unit (310, 410) and a power supply unit (350, 450), the control unit (310, 410) is arranged in an electrically isolated On a first side of the barrier (320, 420), a power supply unit (350, 450) is disposed on a second side of the electrical isolation barrier so as to be electrically isolated from the control unit. The control unit provides (302, 402) a single enable signal to the power supply unit across the electrical isolation barrier. The power supply unit includes switching circuitry (S1 / S2) configured to selectively enable and disable two output voltages for powering an external device (130) communicating data with the lighting driver in response to a single enable signal.

Description

technical field [0001] The present invention generally relates to lighting drivers for lighting units. More particularly, the various inventive methods and apparatus disclosed herein relate to methods for controlling the supply of power from sensor-ready light emitting diode (LED) drivers to external devices such as sensors or lighting control units such as outdoor lighting controllers. methods and systems. Background technique [0002] More recently, so-called smart lighting drivers have been used in connected light-emitting diode (LED) lighting systems. Such smart drives are often referred to as Sensor Ready (SR) because they include a self-powered DALI interface. This self powered DALI interface (ie SR interface) can be used to communicate with and power external devices such as wireless sensors or outdoor lighting controllers (OLC). The smart driver communicates with the lighting network through the SR interface and the external devices connected to it. [0003] In s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/30H05B45/325H05B47/10H05B47/19H05B44/00
CPCH05B47/18H05B47/19H05B45/382Y02B20/30H05B45/375H05B45/38H05B45/3725H05B45/39H02M3/33576
Inventor B·克劳伯格郑三宝J·A·C·密斯多姆
Owner SIGNIFY HLDG BV