Protect LED flashlight and turn off

Light-emitting diode sources for lighting have appeared relatively soon, but they will successfully replace other types of lighting devices. Tezi exchange the zasegnakh and spotlight. In the Taji article, we will analyze for a moment LED spotlightand figure out how to deal with similar problems.

Containment: 1. The principle of action and device on LED spotlights 2. Protect a moment when turned on 3. When can it be repaired and when is it good and change the device 4. Obscuring or blinking the trace is excluded 5. Searchlight is hidden and on or dimmed

The principle of action and device on LED spotlights

This is the beginning, we will analyze the design and the principle of working on an LED spotlight. Structurally, the device is all based on the body, in some way placing a COB LED matrix or a set of SMD LEDs with a given power. The body can be removed by the action of a radiator, which is the removal of toplinate from semiconductors, which heats up in time for work. A reflector is placed in front of the LED, osiguryavshch desires ygl on scattering on the light line. The reflector is covered with a protective glass.

For this reason, the LEDs are not ready to be stored from a low voltage and stabilized to the current of it, in the event that such a name is given to the driver - storage, somehow converting the primary voltage (usually AC 220 V) into a tova, it is necessary to store it on the LED (LED). The driver osigureva stabilizes the current on the nivoto, it is necessary for normal operation on the semiconductor.

Design on LED spotlight

In the picture, the numbers show:

Kadar.
Reflector
Predpazno glass.
LED matrix or a set of discrete LEDs.
Radiator (maybe part of the heat).
Chauffeur.

The principle of working on a light source is extremely simple. The primary voltage is supplying the driver, converting it to the necessary value, stabilizing it and protecting it from the LED, and the chain is defined (usually in a series of groups, connected in parallel).

Important! Some models of LED floodlights are equipped with a graded driver. The device can be linked externally with the required parameters.

The shot is shown down the length of the spotlight without a graded driver. Vsichkimu mu "trash" sa LED matrix and current limiting resistor. This device is iziskva stabilized permanently voltage from 12 V for stored si.

Tozi searchlight isiskva vnshno zahranvane, for yes work back kjm sdzharzhanieto ↑

Protect a moment when turned on

Let's sort out some cause for trepteneto or blinking and let's decide how to correct the case and how to solve the problems. But first, some definition of terminology:

Miga. Periodically fully turn on and off the LED floodlights with one or another frequency and reach the frequency, which is clearly visible beyond the eye.
Blask. Periodically change in brightness on the LED spotlight from a relatively high (tens of hertz) purity. For the difference from blinking, trepteneto, it can be yes fino or dori visually unbelievably, but they have their own aftermath (better for tov in the valley).

Now let's take a look at what the LED projector "instantly" is and how it causes the effect.

What is the highest percentage of money and protection

According to the definition of pulsation, the periodic change is determined by the parameter in time.The task is to determine the value for such a change, to introduce the concept for the pulsation coefficient (CP), which shows the ratio of this to the maximum amplitude on the pulsation and to the average cost per pulsation parameter. Somehow and looking at the graphics, some of the characterization of the format is on the alert, in a conventional domakino contact.

Diagram for voltage resistance at 220 V AC

You can see that from the beginning, gradually increasing it, then drawing it, then again increasing the sign from the opposite, painting it again, etc. The change of these changes happens 50 times a second. Ako svrzhete kruzhet with nazhezhaemaya zhichka kjm takava mrezha, theoretically brightness and scho periodically change from zero to maximum - brighter pulsar strongly.

In practice, pulsate on a bright light on a lamp with a lighted liquid, it’s not sensible to be white, ty kato spiralata is not enough time and cool for a short time and the lamp does not go out suddenly. That is, through the connection to the lamp from the lit litter, the km mrezhat with literally one hundred percent KP, we will get a lot more small and get the coefficient for pulsation on the light stream.

LED e friend question. That almost no inertia (you can’t clean it) and the brightness is even more important, change it exactly from promyanata to the moment of resistance to tension in the merge. Tova meaning that the coefficient on pulsation for voltage is equal and the illumination is still equal.

With what kind of performance do you enter the light stream? Almost everyone has seen a linear fluorescent lamp with an expired expiration date or, as they say, fluorescent lamps (LDS). Tyahnoto treptene is sensible, it is difficult to do it, but it is difficult for you to stay under it for a long time. Glavat soil and pain, chovekt is dying.In general, don’t speak for the perverted work or even the couple - look for a refusal and serve a trace for a minute. And, sorting it out, reflecting everything on the vision.

Protect LED flashlight and turn off Svetlina from the temple is a pulsation factor

And it’s sharply at the temple, e coefficient for pulsation on a light stream, it’s hard to understand from people. Dory at a frequency of 100 or a dory of 50 Hz (theoretically they say that you don’t see such a frequency) they are not very white visually, but the aftermath from the trepteneto continues. Vz is based on what was stated above: to allow pulsation on a light flux on a semiconductor spotlight, which is practically no inertia, but it is minimal, and it is also necessary to osiguri on a device that is stored with the possibility of finding a CP. Now cause some glare, which can and will cause a trepten (pulsation on the light stream) on the LED spotlights.

Problems with zahranvaneto or kabelevaneto

Nai-chesto similar problems and cause chaotic blinking (see on the mountain), but for example, in a distribution box, a switch or a socket with a bad contact, togava d'gata vv vrazkata can cause treptene. Another problem is the quality, which saves the voltage on its own. Ako is constantly “jumping”, then the LED spotlight “jumps” after him. Everyone, who is a garage, probably did not watch how the light was ground and the blinking was unstable, but they trembled and sparkled like a cold darvo, which was electrically brewed into the ground in the garages.

Important! Normally, the water is corrected from a slight drop in voltage, which automatically maintains the initial voltage at the correct level. But if the quality is bad and enter the kapki sa golemi, then do this yama and do it with the task set and the searchlight is even more secure and pulsir.

losh chauffeur

Somehow, the quality of the lighting device is directly dependent on the quality of the water supply. Ako nashiyat LED floodlight with evtin Chinese driver with half-wave current rectifier, then the coefficient for the effect on the light stream is not only bad, but also a lot of bad. This kato so the current corrector is self-negative half-wave, somehow right to save the voltage kato tsyalo is unacceptable and dori obliterating the condenser yama and help here.

Diagram on the format for protecting the voltage trace of the half-wave current rectifier

But the dory and the current corrector, are gloomy on the bridge chain, but without erasing the capacitor (kindly, in the back), it is not very useful for storing it on the LED, so the KP is hard to get rid of it.

Diagram for protecting the voltage from the bridges of the current converter without removing the capacitor (burned out) and with the naked capacitor

Another problem is not enough power for the driver or bad circuits (small range for maintaining voltage, poor coefficient for stabilization, etc.). According to the tosi, I got in some way, choose the tosi, don’t try and drive for the euthynost - you’re good and get out.

Defective driver

But Dory is a high-quality chauffeur on a well-known brand, and he can become capricious, but that's schupi. The condenser will be washed out more and we will get a better pulsation. A single diode in the diode bridge burns out - and nothing is single, destroying the capacitor, yum, and do it. It is possible that non-proliferation is banal. Therefore, if the light on the spotlight works well, but it’s known to be careful and shabby, Ima understood and check if the driver worked correctly.

Problems with LED

Performance degradation may be caused by poor quality LEDs or damage to some of them.Ima is the only way out - yes, change the LED matrix with a quality one, or yes, intend and change the defective LED, but the source is bright and gloomy at the top of the discrete element.

Important! The problem could be caused from the source to the light, who served their own resource. Usually the brightness itself is painted on the LED spotlights, but you can watch and tremble on the light stream. That se tretrira began to eat, somehow in the previous case - through the substitution on the LED.

Another case is that the LED (matrix) is poorly soldered. Vzimame poyalnik and go drinking. Ako svetlinata on the projector is sglobena at the top of discrete LEDs, togawa not all the flashes are blinking, but the group itself, in some ways the LED is not bright.

back kjm sdzharzhanieto ↑

When can it be repaired and when is it good and change the device

And so, buy a LED spotlight and that chatter is safe, despite the fact that contact is not normal. How do you govern, correct or correct? If you want to know from radio engineering, then we can do this, let’s fix the device - put a capacitance out of the way, replace the half-wave current converter from the bridges of the current converter. Maybe the manufacturer has a better soldered part or conductor. But tuk ima not a problem:

boiled on the spotlight anulir guarantee. Tova meaning that in the event of a serious problem, no matter what, replace a defective or poor-quality device instead of us;
the trail of this mistake ruined the guarantee, maybe by discovering that instead of a normal driver, for example, it was installed ballastly stored, something can’t be fixed (you can fix it, but it’s absolutely not suitable for these goals);

Protect LED flashlight and turn off Such a storage is absolutely not suitable for storage on LEDs and matrices from a high power. back kjm sdzharzhanieto ↑

Obscuring or blinking the trace is excluded

In all cases, the LED projector shines weakly or for a moment, but sometimes it is turned off. What could even be the reason for such an incredible crash on the right: no voltage and lighting device from the burnt fuel?

Vv verigata ima sensor for movement

Ima many types of sensors for the movement for various sources in the light. For a lamp from a litter box, for example, it’s best to use the two-gear sensors. That is, the sensor and the projector are connected in series and connected to the 220 V network.

The circuit is connected to a two-wire sensor for movement

Here, as the S1 switch is not turned on, the voltage is now turning on the spotlight and then the wine is not turned on. Decoupling of the switch, motion sensor B1 is not switched on. But for the work of this work, this work was saved, somehow receiving from the mrezhat through a lamp tied to it. Sometimes I used it with a lamp with a burner or a halogen, no problem, but it’s not like that.

Such a way will save the current to the sensor, changing the pres of the spotlight, it’s small, but gradually charging the capacitor to its own driver. The trace of the cato is right on the spot, watering the starter and even lighter than the LED. The condenser was discharged and the searchlight was out of gas. Imashe flash. The next step is the process of repeating.

Important! The “correct” motion sensor may have a similar effect, but it is not connected correctly. The stream of the LED has gone out of phase in the case of a bad cable connection, such a spotlight periodically flashes more or more brightly (see the section "Problems with cable or incorrectly connected»).

Correct electrical diagram for the sensor for the movement of the LED spotlight

Sveteshch prevvlyuchvatel

Turn on the lighting when you install it in your home.It’s convenient - there’s no need and pass the key with a dokosvane in the dark.

Scheme on the connection to the light switch

But the LED spotlight with such a switch turned on for another moment. The reason for this is kato with a two-wire sensor for movement. A neon lamp or LED all needs energy, which is delivered to them through a spotlight and a current limiting resistor R1. Comrade brought it to the condenser, following from Svetkavits.

Problems with cable or incorrectly connected

As you know, if the PUE switch is switched on, yes, it is switched on in the phase switch on the conductor.

The scheme is correct on the connection to the prekvacha

First of all, it’s safe - just open the switch and turn off the light and turn it off completely - the phase is yama and “hang” above it. And secondly, incorrectly connected to fazat and nulat, it’s sharp, sharply and even strange, even bringing the LED spotlight to a blinking out. Why? Ask in the current conductor for a zero leakage conductor, which is a break from the searchlight to the switch. Moisten the walls, damage to the insulation, damp distributive kutia. It’s a little less, but it’s more common, which means, more often than not, and the capacitor is on the driver.

Important! It's old, with the golems of the area with damaged insulation, the current on the island can even be enough for a starter on the driver and a searchlight to shine. Osventova at high humidity dori e bright enough.

How do we solve these problems?

Is it possible to solve all the misfortunes of the problem? Ako preklyuchatelyate from zero preksvane, togava tryabva yes globite rules on the chain, kato I svrzhet kjm preksvane on the phase conductor. Tova may be in an electric kutia. 3-dim sensor for movement.If it is difficult or impossible to change the nulat from the phase switch to the switch, then you can use the diagram along the length, then use the changeover current relay with voltage on the winding 220 V and install it up to the spotlight.

Switching on the floodlights through the pre-switch and relay

With a two-wire sensor, the situation is a little more complicated. You can test and operate LED spotlights with a charter capacitor with a capacitance of 0.5-1 μF and a working voltage of at least 400 V. The capacitor is not polarized. Tova help in any case, but the best option is to just don’t use the two-wire sensor for movement.

Zaobikalyane LED spotlight with capacitor

Illuminated switch - there are two possibilities: remove the key and simply turn off the crank or LED backlight. If you want the backlight, then you can use the condenser to turn off the LED spotlight from it.