Understanding about Dimming Technology of LED Dimmer

LED dimmer, mostly recognized as LED Lighting Dimmers or LED lamp dimmer, is the call of LED constant present power driver that keeps outputting present varying with voltage change. When power IC detects inputting voltage alter, it accordingly adjusts internal PWM signal duty ratio so that outputting current well vary with inputting voltage alter. Therefore, LED light brightness exchanges for the aim of dimming. LED dimmer operating principle entails pulse width modulation, continuous current power adjustment and group control. By classification of application voltage, LED dimmer includes  0-10V Led Dimmer, 1-10V LED dimmer and other types.

Below, let’s come to detailed understanding about LED dimming technology.

Firstly, triac dimming. This dimming technology created from incandescent light bulb can smoothly realize dimming by taking use of triac chopping wave method by virtue of incandescent light bulb pure impedance load. Nevertheless, this really is quite not sensible for LED. For 1 thing, it’s of low efficiency to adjust power from compatible triac, contradicting LED original intention of power saving. For another, it's difficult to understand high energy. For third, it only works within the situation of single inputting voltage. Triac Led Dimmer, usually LED constant voltage triac dimmer will be the application of this technology. But, it is inevitably to die out with incandescent light bulb disappears.

Secondly, linear dimming. This is technology sometimes becoming applied in DALI dimmer, offered as constant present DALI dimmer and constant voltage DALI dimmer. By taking use of unique dimmer with continuous present chip to adjust LED current, it reaches the aim of dimming. This technology has not poor effect only that complex wiring is unfavorable to lightings like fluorescent lamp and street light. As for desk lamp, this technologies is a lot popularly applied.

Thirdly, PWM dimming. This technique is fairly similar with linear dimming and occupies most marketplace together with it. LED PWM dimmer will be the common mature application of this technology. Also, this really is a technologies for PWM dimming customers and customers to apply with pleasure.

Fourthly, remote dimming. It is divided into infrared remote dimming and wireless remote dimming two kinds. Though with a lot complication to realize, remote dimming can get the effect of altering color temperature and colour that other dimming methods can't acquire. It's mainly used in panel light dimming, also partially for bulb light. On account of different application atmosphere, it is seldom applied by Indoor Led Dimmer.

Fifthly, section dimming. This dimming technique gets the aim of dimming by switching switches on wall in regulated time. The benefit lies in becoming free from additional dimming element. Besides, for the reason that section dimming is totally realized by internal control from energy switch chip, inside a complete voltage situation, it can realized higher efficiency and high energy operation regardless of in what kind of brightness. The shortage is only being capable of circulation dimming based on preset brightness instead of variable dimming. But this type IC is couple of and current adjustment is quite undesirable. Anyway, with the maturity of technology, section dimming may be well created by LED Dimmers Manufacturer to become the mainstream of dimming technologies.