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Dimming system

A dimming and channel technology, applied in the field of dimming systems, can solve problems such as interference and customer costs, and achieve the effect of improving dimmability

Active Publication Date: 2022-04-19
SIEMENS SWITZERLAND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Cost and disruption on the part of the customer due to possible required equipment replacement

Method used

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Embodiment Construction

[0020] In the market of lighting devices, LED technology is advancing, whereby the power requirements for dimming channels have decreased. Attempts were made to accommodate multiple channels with the same overall dimensions, which, although supporting less power, thus offer greater flexibility and are optimized for LED lamps. If a more powerful load (eg light bulb chandeliers) should now be operated all at once, several channels can be paralleled for this purpose to form a more performant logic channel. This has the result that the load current is distributed over the channels connected in parallel and thus the power loss is evenly distributed. However, this only works if all channels are switched on or off at the same point in time. If this is not the case, the current in one or more channels is increased and these channels may be overloaded and cut off. The more channels that should be switched together, the bigger the problem. This problem is prevented or reduced with th...

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Abstract

A dimming system and method for controlling the power consumption of a load connectable to a dimming system, in particular an LED lighting device, wherein the dimming system comprises at least two parallel current-divided dimming channels, wherein based on the corresponding The temperature of the switching element of the dimming channel is used to realize the movement of the dimming edge of the corresponding dimming channel, so that the power loss of the connected load is basically evenly distributed to these dimming channels.

Description

technical field [0001] The invention relates to a dimming system for controlling the power consumption of a load connectable to the dimming system, in particular an LED lighting device, wherein the dimming system comprises at least two parallel-connected, current-separated dimming channels. The invention also relates to a method for controlling the power consumption of a load connectable to a dimming system. Background technique [0002] Dimmers or dimming devices or dimming systems for brightness control are generally known and are used to vary the power of lighting devices. This power change can be achieved by leading-edge phase control or trailing-edge phase control. In the case of leading-edge phase control, the current is switched on with a delay after the zero crossing of the alternating voltage and flows until the next current zero crossing. In the case of trailing phase control, however, the current is switched on immediately after a zero crossing and switched off ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/30
CPCH05B39/044H05B39/048Y02B20/00H05B45/56H05B45/18H05B39/04H05B44/00
Inventor J.门施J.雷斯虎伯
Owner SIEMENS SWITZERLAND
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