Installation in the entrance of LED lamps with a sound sensor. How to repair an LED lamp with your own hands Repair circuit lamp with a sound sensor

With the development of civilization, electricity has become an integral part of our Everyday life. Today it is possible to use a wide variety of innovations and technical innovations right in your home.

Lighting in the home has always been one of the most important aspects comfortable living in him. But how many times have you come across a situation where you need to turn on the light, but you can’t immediately find the switch in the dark? Modern technologies, which today penetrate our home everywhere, are designed to eliminate such awkward moments. Now you can use to turn on the light in the room sensor responding to sound.

sound sensor

Such a device as a sound sensor has recently begun to enjoy noticeable popularity, since to a certain extent it allows us to make our life more comfortable and practical.

Let's talk about the sensor

The sensor for turning on the light in the room with the help of a sound signal appeared on sale relatively recently. It is a special device consisting of a special design into which a light bulb is inserted. Sometimes it looks like a cartridge, but most often it is in the form of a plastic box.

It responds to sound signals, due to which the light turns on. A clap of hands can act as a sound signal.

Note! This method of inclusion is very convenient, but only in a situation where the hands are free. Therefore, some sensors can be programmed for a specific sound signal, which will turn on the light.

The installation of such equipment allows you to reduce energy costs, since many of us, being too lazy to reach for the switch, simply do not turn off the light when it is not really needed. In addition, moving around the house in the evening will become more comfortable and safer, since when entering the room, the light can be turned on with the help of sound, avoiding blind actions. It is the light that is not turned on in time very often leads to injuries.

Types of devices

To date, sensors for turning on light in a room through a sound signal can be of the following types:

standard sound;
a sound device that also responds to movement;

Motion Sensor

photocell sensor. It monitors the level of general illumination present in the room, and, if necessary, independently monitors the inclusion or deactivation of the light.

Note! The installation of this device is very in demand in places where emergency power outages often occur, as well as where periodic breaks in electrical wires are possible.

photocell sensor

As you can see, there are several types of devices with which you can turn on the light in the room without using a standard switch. In this case, the signal to turn on for each product will be different: sound, movement or light level.

Each of these devices has its own specifications, Advantages and disadvantages. Before choosing a device, make sure that this type of device is what you need. Remember that this pleasure is not cheap. Therefore, your choice must be balanced.

Purpose of the device

Typically, sensors that are designed to turn on the light are used in different rooms:

in rooms rarely visited;
they are in demand in warehouses or other premises where it is not always possible to turn on the light with your hands;
in private houses;
often installed in rooms intended for transition. For example, today such technical innovations can be found in the corridors of office buildings and government agencies;
their installation in garages is rational, on summer cottages, as well as in those rooms where there is no possibility of mounting a standard switch. Usually these are sterile rooms or rooms with increased hygiene requirements.

Installed sensor

In addition, depending on the type of device, it can be used in the most different situations when its functions are required. For example, due to the installation of certain types of products, after turning off the electricity, the light will still be on for some time, which is very convenient and allows a person to leave the room without any problems.

The use of such products in the house allows you to more rationally use electricity, saving and not wasting it in vain. Connecting the sensor will allow you to significantly increase the resources of the light sources used.

Of course, there is not always a need to install a light on / off sound recorder in a private or apartment building. But if you want to make your home more technologically advanced or just surprise your friends, then better way than to buy sensor For Sveta, No.

Principle of operation

The sound sensor required to turn on the light belongs to the group of acoustic mechanisms. The principle of its operation is based on the detection of an acoustic wave by the device. Such a wave propagates through the device, penetrating inside. At the same time, it registers any deviations from the standard parameters that arise as a result of the propagation of a sound wave. The wave speed and its amplitude are used as reference points. The wave speed, in turn, is recorded through the frequency and phase index.

Any device designed to turn on the lighting in a room with an audible signal must be installed in a break in the power line of the lighting device.

Sensor Installation Diagram

The device itself works according to the following algorithm:

the instrument is in the acoustic control". In this mode, the sensor is able to hear the sound signal;
in the presence of a loud acoustic signal, the device picks it up due to a sharp change in the sound background;

Note! As a sound signal, the sensor can interpret a door slam, a person's steps, a door opening, a voice, etc.

when a sound wave is detected, the device turns on the light for 50 seconds. This time it does not react to changes in the sound background in the room.

According to this algorithm, the device works until the next change in the sound background in the room. If he did not register acoustic waves, then the light will be automatically turned off.

When noise is detected, the operation of the device will be extended by another 50 seconds. This algorithm will be repeated throughout the operation of the device.

It should also be noted that the sound sensor uses piezoelectric materials in its work. In physics, piezoelectricity is understood as a certain type of electric charge, which is formed due to the presence of mechanical stress. Piezoelectric materials, when applied to an electric field of a certain charge, cause mechanical stress. Thus, piezoelectric sound sensors contribute to the development of mechanical waves with the help of an electric field. Based on these phenomena, acoustic sensors work.

acoustic sensor

The microphone is the receiver of the audio signal. It serves as a transducer of acoustic vibrations in the available alternating electrical voltage.

Such microphones are of the following types:

low-resistance - is an inductor equipped with moving magnets. They act as variable resistors;
high-resistance - is the equivalent of a variable capacitor.

In addition, microphones can be:

electret two-pin;
electret three-pin.

But such microphones have a somewhat poor signal transmission. To improve their work, a special amplifier is needed, which will pre-amplify the acoustic wave.

Despite the fact that electret microphones are similar to piezoelectric pickups, they differ from them in linear transmission, as well as a significantly wider frequency. This allows the device to process the received signal without distorting it.

As practice shows, this principle of operation is very reliable, which guarantees long-term operation of the device. Therefore, you will enjoy this technological device for quite some time.

With an audio-oriented sensor, you optimize the switch-on process Sveta at home or in private room. Installing the device will allow you to save more, and you will no longer look at your electricity bills with the same fear.

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Price LED lamps high enough. Therefore, if such lamps are installed in your lamp and one of them has stopped working, then do not rush to throw it away. In this article, we will tell you how you can repair the LED lamp with your own hands.

Most LED lamps are made in China, and their quality often leaves much to be desired. According to statistics, two out of five LED lamps stop working within the first year of operation. Having bought three light bulbs, you should be prepared for the fact that one of them will burn out in the next year.

LED bulbs burn out differently than incandescent bulbs. If incandescent lamps simply cease to give light, then often the tungsten filament simply burns out in them. LED light bulbs burn out differently. They begin to make crackling sounds or smoke heavily (both options are possible at once), after which a strong crackle or pop often follows and the lamp stops working altogether.

But in fact, in an LED lamp, some of its elements often simply fail, which can be eliminated with simple manipulations with a soldering iron. In order to fix this problem with your own hands, you need to unscrew the LED light bulb.

Very often, the problem due to which LED bulbs stop working is burnt-out LEDs. They burn mainly due to improper or poor-quality installation. Burnt-out LEDs can be replaced and in eighty percent of cases the LED bulb will be usable again.

Also, after opening, we check whether the capacitor has been damaged. With power surges, it is he who can cause the failure of the LED lamp. To check if everything is in order with the capacitor, simply remove the printed circuit board from the box of the LED lamp itself.

The photograph shows that the capacitor is not just swollen, but it exploded. The pop before the LED bulb stopped working was the sound of the capacitor bursting. A broken capacitor will have to be replaced with a similar one.

In radio parts stores, finding such a capacitor is not difficult. It is desirable to find completely identical.

After buying all necessary details you can start repairing the LED lamp. First, using a soldering iron, you need to unsolder the burned-out LED.

This is what the soldered LED looks like:

If you can't find the LEDs you need, you can simply short-circuit the pins directly. To do this, use solder and a soldering iron.

Shorted contacts should look something like this:

Our next step is to install a new capacitor. To do this, using a soldering iron and solder, we install a new capacitor in place.

After the capacitor is soldered, the LED light bulb needs to be assembled. To do this, we install the printed circuit board back into the body of the LED lamp, and close it with a light-diffusing cap from above.

Turn on the switch and the LED light works again.

Now, dear readers, you have learned how to repair LED light bulbs with your own hands.

Economical and at the same time functional, we strongly recommended that you install a motion sensor on the spotlights. This device will automate the backlight system and turn it on not only when it gets dark, but also if movement is detected in the detection zone. However, it is far from always possible to set up the way you want, as a result of which the sensor is triggered at the slightest vibration of the branches or when it is not too dark outside. That is why we have prepared for our readers detailed instructions, which clearly explained how to set up a motion sensor for lighting with two and three controls.

How can the detector be adjusted?

In modern motion sensors (DD), you can adjust the sensitivity, illumination, turn-off delay time and installation angle.

All these parameters, when properly configured, can save up to 50% of electricity, which is a very significant indicator. However, it should be immediately noted that not all motion sensors have three regulators. In older models, only two parameters can be adjusted - delay time and sensitivity, or delay time and light level, as in the photo below:

Sensor overview

Now we will separately analyze how to set up a motion sensor on a spotlight or another version of the lamp.

Settings

Mounting angle

The first thing to do is to properly adjust the DD detection zone. IN modern models fixtures detectors are presented separate elements attached to a hinge. Here you just need to configure it in such a way that infrared rays were aimed at the maximum possible detection area. Here, not only the installation angle plays an important role, but also the height at which you decide. The optimal and most unsuccessful installation methods are discussed in the diagrams below:

Sensitivity

The second parameter you need to adjust is the sensitivity, which is labeled "SENS" on the case. As a rule, a wheel with a range from min (low or -) to max (high or +) is used for adjustment. Setting the sensitivity of the motion sensor is the most difficult. You must adjust the parameter so that the detector does not work on small animals, but at the same time turns on the light when a person is detected. In this case, it is recommended to immediately set SENS to maximum, wait until the flashlight turns off and check how the sensor will work.

Gradually, you will need to reduce the sensitivity until you find the "golden mean". Please note that if you have a large dog in your yard, it is unlikely that you will be able to set up the sensor so that it does not react to it.

The next setting is the illumination threshold, marked on the body as “LUX”. This parameter is necessary in order to configure the sensor to turn on the light only when it gets dark. For example, why turn on the lighting when motion is detected during daylight hours, it still won't do anything. At the first setting, it is recommended to set the maximum LUX value and, when evening comes, adjust the appropriate time at which the sensor will be triggered.

If your detector does not have a LUX control, then you can additionally. In this case, it will still turn out to adjust the spotlight so that it turns on only at night.

Delay time

Well, the last parameter is the turn-on delay, designated "TIME". The time is the easiest to set, the range can vary from 5 seconds to 10 minutes. Here you yourself have to decide how long it is better to set the delay. There are sensors for which the delay time increases with each new switch-on. During the initial setup, it is recommended to set this control to the minimum setting so that you can quickly check the parameters.

Also a little useful information You can find out by watching this video:

How to make an adjustment

That's all I wanted to tell you about how to set up a motion sensor for lighting. Such detectors can be installed not only on the street, but even in the apartment, for example, on the landing at the entrance. We hope that the provided instructions for setting up a detector with two and three regulators were useful for you!

Hi all! There was a broken searchlight with a motion detector lying around at home, I decided to make a corridor lamp out of it. First, I carefully sawed off the motion sensor from the spotlight, after unsoldering the wires connecting to the lamp and the network.

Next, I took the stuffing from a burned-out energy-saving lamp. The main thing here is to know that it is working. As a rule, it is not the CFL electronics that burn out, but the lamp itself. The easiest way to verify this is by carefully examining the details of the circuit.

I cut off 70 cm from the 40 cable channel, took 2 holders from the broken lamp from the fluorescent lamp and fixed the whole thing on the cable channel.

The only thing I had to buy was a new LDS Philips 18W lamp.

It turned out such a small and very convenient corridor lamp with a motion sensor. Now it only turns on if someone is in the room. In the context of rising electricity tariffs, it is very important.

And you can even reduce energy consumption by putting a bright led strip- see various good models at the link, though you still have to select the appropriate 12 V current.

Video of the work of a homemade lamp

The thing turned out to be very convenient, and most importantly, from cheap and unused elements. Good luck everyone, bye! The article was provided by Ivchenko Alexey Anatolyevich, Novorossiysk.