Ordinary remote control LED smart light bulbs feasible?
2017-05-24 09:29:43
Buy LED bulb selectivity is very much, but compatible with the LED dimmer is difficult to pick. Many users will be very confident that with the traditional incandescent dimmer can now see the market is the largest thyristor dimmer, sub-DC and AC two, used in incandescent lamp very easy to use.
Choose the right color temperature, the appropriate level of lumen, the appropriate beam angle of the LED lights is the requirements of the dimming. Unlike ordinary incandescent dimming methods, the use of thyristors for LED bulbs dimming may be successful, but in most cases there will be many problems.
Four conditions:
The most problematic is the buzzing buzzing or stroking. Ordinary incandescent lamp only need to control the voltage can adjust the light and shade, but the LED lights may not work, we did the experiment, there have been the following four cases:
1. completely unable to open, do not light!
2. Only 100% of the light is always bright.
3. Be able to work but buzzing beeps are very big.
4. When the adjustment to a certain brightness will occur when the strobe.
Dimming will lose weight:
To remind you that dimming is easy to reduce the life of the lamp, why? Simply give a dimming method: we divide a second into 1000 copies, each one is 1 millisecond, and then through the control chip, so that LED lights work 7 ms off 3 ms, so that in a second time it only works 0.7 seconds, but because of the flashing interval quickly, we can not find the brightness of the naked eye in the flicker, will only feel its brightness darkened, is the original 0.7 times, so that the effect of dimming. Similarly, we can achieve 50% brightness, 32% brightness and any brightness. In this way to flash, not too early to blame!
In order to avoid a variety of problems, smart light bulb as far as possible do not use the physical dimming method, took out the phone, open the APP to adjust the light and the simplest.
Note Strobe:
Strobe of the most, the reasons are as follows: Adjustable resistor itself is not a very reliable components, often because of dust into the manufacturing process or not tight, in the operation of adjustable resistance when there will be instantaneous gapped fault, then the light source It will flash. So you need to need high-quality adjustable resistance, or use linear technology to regulate the current rather than voltage.
In fact, LED internal drive function itself can easily achieve the adjustment of brightness, but most of the LED manufacturers will remove this feature to save costs, LED lights can be dimmed in the box will usually be marked, if the box Not marked, please use the dimming function, or use a dedicated LED dimmer.
Dimming principle:
In the test time, sometimes the light-emitting diode dimmed to a certain limit after the normal use. The reason we judge a lot of times is that the dimmer's application voltage is too small to reach the required voltage.
LED internal circuit than the incandescent lamp more complex, the real LED dimmer is not just adjust the voltage, LED dimmer principle there are three:
1. Broadband control dimming: the power side of the square wave, and control the square wave duty cycle, so as to achieve the purpose of control current.
2. Constant current power regulation: Analog linear technology can easily adjust the size of the current.
3. Group control: the number of LED grouping, with a simple packet control.
In order to avoid a variety of problems, the simplest is to use the phone to adjust the light and shade, intelligent light bulb as far as possible do not use the physical dimming method.
In order to avoid a variety of problems, the simplest is to use the phone to adjust the light and shade, intelligent light bulb as far as possible do not use the physical dimming method.
