Dimming is a complicated vocabulary for designer friends: some friends think that he is a strange field, some have dimming and headaches, troubles are equal, and some are applied handy.
Today we will talk about dimming: The original meaning of dimming refers to changing the brightness of the light emitted by the light source.
The initial dimming of the electric light is only one form of variability. I believe that everyone must be very familiar with the "small bulb" and "sliding rheostat" in the physics class.
Changing the resistance can dim the light, but it also brings a lot of heat loss.
However, in 1959, an epoch-making invention was born. American Jewish scientist Joel Spira applied thyristor technology to the field of lighting for the first time and invented the first solid-state electronic dimmer.
Capri dimmer Pictures
It is with the dimming as the basis that people have invented the lighting control system (LCS: lighting co ntrol system) that can complete complex logic.
The light environment of a space is now fully controlled by humans:
Bright bright
Dimmed dimmed
However, it is not an easy task to achieve dimming in reality. For example, the lamp itself is like a car. Dimming is driving the car. The dimming device is the driver. The dimming method is the driver's license. Let us continue with this example.
In dimming, we often encounter the following problems:
In summary, these adverse effects are due to one or more of the following reasons:
Did not choose the appropriate dimming mode VSC1 driver's license to open the bus
Not equipped with a suitable high quality dimming system VS driver is a novice
Did not install according to the specifications of the dimming system VS hand brake did not loose start
Did not choose quality driver VS car itself performance is not good
Now let's talk about which dimming methods are available (what types of driving licenses are available in the dimming field and which cars can be driven by each)
Also don't forget: the switch is also a dimming method! (A total of 10 lights, number 1~10, the odd number is turned off at night, leaving the even number on)
From simple to complex, each dimming method (driver's license) must be implemented with corresponding dimming equipment. Their detailed introductions are as follows:
Switch dimming On/Off Switching Module
Control "no dimming" lamps
Different light sources can be connected to one circuit
The total power of each loop must not exceed the maximum load of the module, such as 10A (2200W)
Modules are generally installed in the power distribution room
Modules can be connected to other devices for intelligent control
Phase Dimming Module Phase Dimming Module
Direct control of dimmable lamps, mostly for renovation projects
Each circuit can only be connected to a single source
Need to distinguish between front/rear drive
The total power of each loop must not be less than and exceed the minimum and maximum load of the module
The average dimming effect is poor, and the pressure is poor, generally 25-100%.
Modules are generally installed in the power distribution room
Connect to other devices for intelligent control
0-10v Dimming Module 0-10v Dimming Module
Dimming a luminaire with a “0-10v†drive
Each circuit can only be connected to a single source
The total power of each loop must not exceed the maximum load of the module, such as 10A (2200W)
There is no standard for dimming, preferably 10 - 100%
0-10v control line length is generally <100m
It is recommended to connect no more than 20 lamps per circuit.
Modules are generally installed in the power distribution room
Connect to other devices for intelligent control
DALI Digital Control Module DALI Digital Co ntrol Module
Dimming a luminaire with a DAL I drive
Each DALI link can connect up to 64 different luminaires and group control the luminaires
DALI drives are powered directly from the distribution box
There is no standard for dimming effect
The control line length of the DALI link is generally <300m
Modules are generally installed in the power distribution room
Connect to other devices for intelligent control
Finally, let's compare the various dimming methods:
Today's sharing is here, I hope to help you. The design of the dimming and control system is a very interesting art.
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