How to make motion sensors to turn on the light yourself. Wiring plan

Motion sensors for lighting by design are quite different. First of all, it should be noted that to date there are many photocells for these devices. Ultimately, they set their parameters to the sensor. Also, the models differ in sensitivity. This is due to the fact that the amplifiers are installed on them with different power. It is quite difficult to assemble the sensor yourself, but if you select all the elements and adhere to the scheme, you can do it.

Standard wiring diagram

The standard connection scheme of the model assumes the use of a modulation photocell. In this case, transistors are used most often of a diode type. The bulb in this case should be located near the amplifier. The width of the transmission depends on the type of capacitor. Amplifiers are usually installed in a pulsed type. However, integrated modifications can also be found in our time. The accuracy of tracking devices in the long run depends on many factors. First of all, it concerns the type of filter, which is designed to suppress noise. In addition, a modulator is installed in the sensors, which can vary in parameters.

Model with a magnetic photocell

To assemble this type of motion sensors to turn on the light with your own hands (the diagram is shown below), you first need to choose the housing for the device. After this, the lamp is installed directly. Further it is important to prepare the cartridge. You can connect this element only after the modulator. For this purpose it is necessary for him to establish a site. The unit can be fixed in the housing with screws.

After connecting the modulator, a pass-through capacitor is installed. Its capacity for high stabilization of the sensor should not exceed 4 pF. Otherwise, the bandwidth will be significantly reduced. To connect the device to the network, diffusers are used. In total, they should have three contacts. One of them is designed for grounding. Ultimately, the inclusion of light through the motion sensor can be carried out remotely.

Application of broadband photocells

Folding this type of motion sensors to turn on the light with their own hands is quite simple. First of all, the lamp housing must be prepared as a standard. In this case, the place is allocated separately for this element. The board must not touch the surface of the housing directly. The unit is usually fastened to the screws. Diffusers in this case are used as standard for three contacts. In this connection, the connection can be made to the network via an amplifier.

Transistors in this situation can be used induction type. However, it should be borne in mind that the sensitivity of the sensor will be low. Also in this situation, you can use resistor transistors. The transmission width in them is capable of reaching up to 5 microns. The voltage on the light bulb will be exactly 5 V.

Sensor on dipole resistors

To assemble this type of motion sensors to turn on the light with your own hands, you can if you pick up a quality photocell. To increase the sensitivity, many experts advise using magnetic analogs. In our time they are in great demand. Condensers in this situation are advisable to select an emitter type. The threshold frequency parameter will be at the level of 44 Hz. All this will allow the voltage on the light bulb to supply 5 V.

However, in this situation, the type of amplifier should be considered. If it is used as a network type, it is better to install capacitors near the photocell integrated. On average, their capacity is no more than 9 pF. In general, the indicated type of motion sensors for the inclusion of light consumers' reviews are positive.

The use of selective capacitors

To assemble this type of motion sensors to turn on the light by hand, it is necessary to select a plastic housing for the photocell. In this case, the lamp should be separated. Transistors for this model are suitable for integral type. Install them in series with the amplifier. In this case, you can select the network type. Directly the capacitor should be located above the photocell.

The model is connected via a diffuser. In this case, the first contact must go to the anode, and the second - to the cathode. The accuracy of tracking the device depends in this situation solely on the power of the amplifier. In addition, it should be noted that the photocells for this are more than a magnetic type. If we use an integral analog, the load on the capacitors will be quite large. Failures can also occur in the transistor.

Supersensitive models

To assemble this type of motion sensors to turn on the light with your own hands, you can if you choose a high-quality photocell in advance. Many experts in this case are advised to give preference to magnetic analogs. Their sensitivity is at the level of 55 microns. It should also be noted that the amplifier must be installed with a threshold frequency at 30 Hz. All this is necessary in order to remove the load from the capacitors. There are two transistors for the device. One of them must be located at the diffuser. The parameter of its patency is largely dependent on the power of the amplifier. A light bulb can be used in this case.

Modifications with reduced sensitivity

With reduced sensitivity, how do you make motion detectors to turn on the light? Answering this question, it is necessary to know that it is more expedient to select photocells in such a situation. The sensitivity parameter is, on average, 20 μm. It is also important to note that the amplifiers used in the devices are very diverse. In this situation, it is necessary that the negative resistance level in the circuit does not exceed 11 ohms.

Otherwise, the resistors will quickly burn out. The device can be connected only through the diffuser. As a rule, it is installed with a zener diode. Due to this small voltage drops in the house are not terrible for the device. It should also be noted that capacitors are important to select with high capacity.

Modifications with a membrane amplifier

The indicated motion sensors for switching on the light (connection diagram shown below) are very much in demand today. If you believe people's reviews, then they are installed quite simply. First of all, it is necessary to clean external contacts. To do this, remove the diffuser cover. After that, the first contact is selected and connected to the output cable. Next, you need to connect the ground. Speaking about the sensor, the membrane amplifier in the device significantly increases the threshold frequency parameter. Photocells for it are suitable for almost all types. However, many experts advise capacitors to install integral ones. In this case, they are able to serve quite a lot.

Resistors deserve special attention. Some of them are modular when assembling the device. However, in this case, the negative resistance parameter in the sensor will be approximately 6 ohms. On the photocell this load is considered quite large. To solve this problem, you should pay attention to two-row resistors. There are two of them for the device. The first should be installed near the photocell. In this case, the second is often located for better conductivity behind the amplifier.

Use of dielectric resistors

In our time of this type, motion sensors for turning on the light (the connection diagram is shown below) are quite rare. Photovoltaic cells they are most often installed radiation. However, some manufacturers produce models with magnetic counterparts. In order to assemble the sensor yourself, register capacitors should be prepared. Resistors are important to install behind the amplifier.

The sensitivity level of the sensor depends on the power of the zener diode. The device is connected via a diffuser. It is installed most often on three contacts. First of all, the device is connected through an anode. After this, it is important to check the grounding. In normal use of the device, the negative resistance level does not exceed 40 ohms.

Using absorbing filters

With absorbing filters there are various sensitivity motion sensors to turn on the light with their own hands. How to make a model yourself? Answering this question, it is necessary to know that devices of this type are assembled only on the basis of a beam photocell. However, the modulator is firstly fixed. For high sensitivity, it is selected by the P20 series. It should also be noted that the resistors for the device are only suitable for vector type. Their passage depends not only on the photocell, but also on the amplifier.

Power supplies for the device are selected on average by 20 V. In this case, conventional incandescent lamps can be used. The cartridge for them can be purchased in many stores. Directly the filters in the devices play the role of absorbers. In this case, low-frequency noise is eliminated. Place this element near the condenser. In the end, it should be noted that these motion sensors for the inclusion of light in the entrance are established quite often.