Dimmable light-emitting-diode illumination system, and driving device and driving method thereof

Abstract

A dimmable light-emitting diode illumination system comprises a light-emitting diode lamp group (10), a switch (20) and a driving apparatus (30). The light-emitting diode lamp group (10) is used for receiving an electric signal and generating light. The switch (20) is connected to the power supply (100) for turning on and off under control in preset time to generate a pulse signal. The driving apparatus (30) is electrically connected to the switch (20) and the light-emitting diode lamp group (10) for receiving electric energy of the power supply (100) and converting the electric energy to an electric signal for the light-emitting diode lamp group (10) when the switch (20) is turned on to drive the light-emitting diode lamp group (10) to generate the light. In addition, the driving apparatus (30) stores an overall brightness value, a preset illumination mode and a brightness adjusting mode. When receiving the pulse signal, the driving apparatus (30) uses one of the modes to drive the light-emitting diode lamp group (10) to generate the light.

Description

technical field [0001] The invention is applied to a light-emitting diode lighting system, in particular to a light-adjustable light-emitting diode lighting system and its driving device and driving method. Background technique [0002] At present, the most common fluorescent lamp lighting system, in order to achieve the choice of different brightness, will use the combination of the number of bright tubes of different fluorescent tubes to select the brightness (because the fluorescent tube cannot be dimmed, it can only have two states of on and off), but Adopting this method will cause uneven lighting brightness, and this combination method will be limited due to the number of lamp tubes that the lamp can support, so that the combination of each lamp will be limited. [0003] In today's environment where environmental protection and energy conversion efficiency are increasingly emphasized, light-emitting diodes have better electro-optic conversion efficiency than incandesce...

AI Technical Summary

Problems solved by technology

However, with the popularity of light-emitting diodes, the design of dimmers is also becoming more and more diverse, making each driving device not effectively applicable to dimmers of various specifications

Therefore, the cooperation of the dimmer and the driving device has its limitations and difficulties in actual use.

[0004] In addition, with the current dimming design of LEDs, it is difficult to directly replace existing lighting devices with dimming functions, and ordinary users will not modify or repurchase existing incandescent bulbs and daylight bulbs in order to install LED lamps. House wiring, lamps, switches and other devices used in lamps

Therefore, LED lamps have the advantages of power saving and environmental protection. However, in terms of current switches and lighting devices, LED lamps only have two options of on and off, and cannot choose and switch brightness.

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