Lighting designers must understand the way of four kinds of dimmer! - Lighting network

Guide language: with the development of science and technology, more and more things can be done on a mobile phone, big to the dimming system, small to a desk lamp, can use mobile phones for dimmer. In a need to move light space, designers need to understand what light source can be dimmer, what are the dimmer way, to better scheme is given.

with the development of science and technology, more and more things can be done on a mobile phone, big to the dimming system, small to a desk lamp, can use mobile phones for dimmer. In a need to move light space, designers need to understand what light source can be dimmer, what are the dimmer way, to better scheme is given. A, edge cutting phase control dimmer principle: cutting edge dimming is USES the silicon controlled rectifier circuit, since communication phase 0, the input voltage chopper, until the thyristor turn-on, the input voltage. Using cutting-edge conduction, by passing zero natural off dimmer.

LED fluorescent lamp power supply leading edge dimming equipment has a high controlling accuracy, high efficiency, small volume, light weight, easy to remote operation advantages, such as dominant in the market, most of the manufacturers of products is this type of dimmer. But the former dimmers is easy to generate large noise, in the occasions with higher requirements do not recommend using this dimmer way. Second, after the cut along the phase control dimmer principle: LED fluorescent lamp power along the dimming the transistor circuit, dimmers for chopping input voltage waveform. , who has been shut off from one phase to start conducting 180 degrees. The LED fluorescent lamp power along the dimming: zero conduction, the MOS/IGBT technology, along the shut off after solved the problem of the power grid interference and noise. Cut relatively frontier facies control dimmer way, along the tangential control dimmer compatibility is good, but the internal circuit structure is relatively complex, control cost is relatively high. Third, 1 - 10 v dimmer principle: 1 10 v dimmer way principle can correspond to the chart, the abscissa control voltage and the relationship between the vertical flux is: on the right side of the control voltage (1 v, luminous flux minimum by about 1%, the control voltage 10 v

, luminous flux maximum 100%, in the process of the dimmer, a linear relationship between both. For example, have a lot of light in a room, we for each lamp with a group of 1 - less than 50 meters 10 v

the line of control, and connected to the controller. When the controller to adjust the voltage on the line changes, was bright or dim light. 1 - 10 v

the disadvantage is that the light: a set of lamps and lanterns on the control panel can only change at the same time, if you want to accomplish each lamp to realize different control, so can only let the control panel and one to one correspondence of lamps and lanterns, when the number of lamps and lanterns up, apparently becomes very troublesome to operate. Four, DALI when faced with multiple lamps and lanterns that move light need to move light, we can use the DALI dimmer instead of 1 10 v dimmer way, DALI adjustable light is a kind of typical digital control mode. Principle: DALI ( 数字可寻址照明接口) Is the international public specifications of lighting control communication protocols, communication rate of 1200

BPS plus or minus 10%. It is mainly used for multiple fluorescent lamps and LED lighting dimming control. DALI

can through the largest 64 short address and 16 groups constitute a network, a host can control one or more from the machine, in half duplex way to communicate. DALI with four letters have different meanings: Lighting Digital Addressable Digital Addressable Lighting Interface Interface DALI can for each equipped with DALI

driven lamps and lanterns that move light, DALI bus different Lighting unit can be flexible grouped, implement different scene control and management. Compared with other ways of dimming, DALI has the advantages of light: 1, digital dimming, stable and smooth dimming accurate; 2, DALI can two-way communication and feedback to the system of lamps and lanterns; 3, DALI control more flexible; 4, DALI, strong anti-jamming capability.

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