Today, I will explain how the common LED strips, modules, and some other custom analog circuits can achieve color change and dimming. First of all, to figure out what is the LED light source of the analog circuit, the simplest explanation is that the low-voltage 12V or 24V power supply is on and off, and the power-off is off. The general-purpose light bar module on the market is also this type of The light source, which is combined with the digital light source, constitutes two sources commonly used in the LED market today.
Analog Light Bar Digital Light Bar First, the most economical and simplest way is the LED dimmer, which is generally suitable for small facades and home atmosphere lights. The biggest feature of this system is the high cost performance, a dimmer. The price is also around 100 yuan, and a set of dimmers with remote control will range from three hundred to five hundred.
It should be noted that each type of dimmer has a power limitation, generally about 200 watts. If the load power of the tow is too large, a power amplifier is needed to expand.
Its drawbacks are also very obvious, because the programs are built-in, have been written at the factory, generally red, green and blue, colorful jumps, gradients, and some flickering effects. Some high-end dimmers and palettes can be tinted or bright. Therefore, multiple cascades cannot be used, and one system directly controls one surface.
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