How to make stroboscopes with your own hands. Homemade strobe to adjust the ignition. Assembling strobe with your own hands, step by step, the easiest option

The LED strobe for the installation of the ignition allows you to quickly and with high accuracy to set the optimal ignition advance angle (UAZ) in the car. This parameter plays an important role in the correct operation of the engine. A small displacement at the moment of ignition leads to loss of power, due to increased fuel consumption and engine overheating.

Despite the large range of industrialized devices for checking and installing the Women, the relevance of the creation of a stroboscope did not lose meaning and today. The presented scheme of the homemade strobe for the car does not require setup after the assembly and is made from the available parts.

Strobeconopa concept

The scheme is designed and presented in the ninth edition of the Radio magazine in the distant 2000. However, due to its simplicity and reliability, it remains relevant and now.

In principal electrical scheme The strobe for the car can be conditionally allocated 4 parts:

1. The power circuit consisting of a SA1 switch, VD1 diode and C2 condenser. VD1 protects the elements of the circuit from the erroneous change of polarity. C2 blocks frequency interference, preventing failures in the work of the trigger. To feed and turn off the power, the SA1 switch is used, for this will suit any compact switch or toggle switch.
2. The input chain, which consists of a sensor, C1 condenser and resistors R1, R2. The sensor function performs the "crocodile" clamp, which is fixed on the high-voltage wire of the first cylinder. The elements C1, R1, R2 are the simplest differentiating circuit.
3. The trigger microcircuit collected according to the diagram of two single-type single-packs, which form the pulses of a given frequency at the output. Freight-standing elements are R3, R4 resistors and C3, C4 condensers.
4. The output cascade collected on the VT1-VT3 transistors and R5-R9 resistors. Transistors enhance the output current of the trigger, which is reflected in the form of bright flashes of LEDs. R5 sets the database current of the first transistor, and R9 - eliminates failures in the operation of a powerful VT3. R6-R8 limit the load current flowing through the LEDs.

Principle of operation

The strobe circuit is powered by car battery. At the time of circuit breaker SA1, the DD1 trigger goes into the initial state. At the same time, high potential appears on inverse outlets (2, 12), and low potential on direct (1, 13) is low. Capacitors C3, C4 charged through the appropriate resistors.

The pulse from the sensor, passing through the differentiating circuit, enters the clock input of the first single-tractor DD1.1, which leads to its switching. A reload of C3 begins, which after 15 ms ends with another trigger switching. Thus, the simultor reacts to pulses from the sensor, forming rectangular pulses at the output (1). The duration of the output pulses with DD1.1 is determined by the R3 and C3 rates.

The second Software DD1.2 works in the same way, reducing the pulse duration at the outlet (13) 10 times (approximately 1.5 ms). The load for DD1.2 is an amplifying cascade of transistors that open at the time of the pulse. The pulse current through the LEDs is limited exclusively to the resistors R6-R8 and in this case it reaches the value of 0.8 A.

Do not be afraid of so much current. Firstly, its impulse does not exceed 1 ms, with a standard in operating mode at least 15. Secondly, modern LEDs have much better technical characteristics in comparison with their predecessors from 2000, when this scheme first received practical use. Then it was necessary to search the LEDs with the power of light in 2000 mc. Now white LED (from English Light-Emitting DIODE) type C512A-5 mm from the company with an angle of scattering 25 ° is able to issue 18,000 MKD at a direct current of 20 mA. Therefore, the use of superwar LEDs will significantly reduce the load current by increasing the resistance R6-R8. Thirdly, the time of use of the stroboscope usually does not exceed 5-10 minutes, which does not cause overheating of the crystals of emitting diodes.

PCB and assembly details

A homemade strobe for the installation of ignition can be collected both on low-cost domestic radio elements and more precision imported elements. Below is a fee with the use of domestic components for pin mounting.

Board in file. Sprint Layout. 6.0: Plata.Lay6.

Diode VD1 - CD2999B or any other with a small drop of direct voltage. The C1 capacitor should be high-voltage with a capacity of 47 PF and a voltage of 400 V. Capacitors C2-C4 non-polar KM-5 series, K73-9 by 0.068 MKF 16 V. All resistors, except R4, such as MLF or planar with rates indicated in the diagram . R4 Type SP-3 or SP-5 type rint resistor at 33 com.

TM2 trigger is better to use 561 series, which is characterized by high noise immunity and reliability. But you can replace it with a chip of 176 and 564 series, taking into account their pinout. The VT1-VT2 transistors will suit CT315 b, B, g or CT3102 with a large gain coefficient. Output transistor - KT815, KT817 with any letter console. HL1-HL9 LEDs are better to take superwear with a small dispersion angle. They are placed on a separate board for three in a row. In the absence of any details of the scheme, they can be replaced with more modern counterparts, a slightly improved fee.

The finished control board of the strobe and board with LEDs is conveniently placed in the portable lantern housing. In this case, it is necessary to provide a hole in the housing under the R4 controller, and the standard switch can be used as SA1.

Setting

In the diagram, an R4 stroke resistor is installed, the adjustment of which can be achieved visual effect. Rotating the knob of the regulator can be observed that the reduction in the current pulse leads to a lack of illumination of the labels, and the increase is to blur. Therefore, during the first launch of the stroboscope, it is necessary to choose the optimal duration of the flashes.

Shielded wire length from pCB The sensor should not exceed 0.5 m. As a sensor, 0.1 m copper conductor soldered to the central dwelling of the shielded wire is suitable. At the time of connection, it is wound on the insulation of the high-voltage wire of the first cylinder of the car, making 3 turns. To increase noise immunity, winding produces as close as possible to the candle. Instead of a copper conductor, you can take a clamp type "crocodile", which should also be soldered to the central dwelling, and its teeth will slightly bent inside so as not to damage the insulation.

Installation of Uzen Strobeoscope

Before considering the operation of the automotive strobe, you need to understand the essence of the stroboscopic effect. If the object moving in the dark for a moment to light up the flash, then it will seem to be frozen in the place where the flash occurred. If you apply a bright label on the rotating wheel and illuminate it with bright outbreaks that match the frequency with the frequency of rotation of the wheel, then at the time of the flashes, you can visually fix the location of the label.

Two labels are applied before adjusting the verge of the car: movable shaft (flywheel) and stationary - on the engine case. Then join the sensor, power supply to a strobe and turn on the engine to idle mode. If the labels are coincided during outbreaks, then the uz is exposed optimally. Otherwise, it should be adjusted to their complete coincidence.

The presented stroboscope for the installation of the ignition collected with your own hands will allow for a few minutes to debug the car ignition system. As a result, the adjustment will increase the efficiency of the engine and the service life will increase.

Read the same way

A very powerful LED stroboscope, which will perfectly complement any disco dance floor. A stroboscope has been built on three LED matrices with a total capacity of 150 W.

The principle of operation of the device is to give very short light pulses (flash) at a specified period of time. According to the action, it is very strongly reminded of zipper during the rain, when a completely dark room at milliseconds illuminates the bright light.
During the disco it looks especially fascinating.
Details:

• LED Matrix -
• Source 12 V -
• Transistor K2543 -
• Diode bridge -
• NE555 Chip -
• Resistors and capacitors -

LEDs on network voltage with built-in driver:

Strobe designer scheme

I would not say that the scheme is complex, rather simple. But it does not have a galvanic tension junction, which means - it is impossible to touch any elements of the scheme during its work and during the assembly to be particularly attentive.
A visually scheme can be divided into 12 V power supply, pulse generator, rectifier and line of LEDs.

Work Streloboscope

The short pulse generator is assembled on the NE555 chip. The time between the pulses can be changed rotating the handle of the variable resistor R3.
The key to the output of this generator is connected to the field of transistor, which commutes the voltage 220 V, in the power circuit of the LED matrices included in parallel to each other.
LED matrices feed on dCwhich straightens the diode bridge. It is necessary in order to switch the chain of a field transistor, which only works with constant voltage.

Assembling strobe

The stroboscope is assembled in a cable cable. LEDs are screwed to the wide side, without radiators. Since the LED is used somewhere on 2-5% of its power ( impulse work), the need for heat sinks disappears.

Side walls are cut out of the same cable and glue glued. From above, a variable resistor is derived for adjusting the flicker frequency.

Scheme blocks in the case:

Warning

LEDs are very powerful and can damage your eyes, so it is not recommended to look at them. The gating outbreaks are especially dangerous, as the eye relaxes in the dark, and the bright pulse penetrates directly into the retina.
We also do not forget that the whole scheme is under network voltagelife-threatening.

Result of work

The work of the stroboscope, unfortunately, do not pass through any photo, nor through the video. Since even the camcorder is very poorly traversed the short pulse and it is simply shouted.
But I can say from myself that the stroboscope was excellent, the outbreaks are short and very bright. It looks very impressive, in general, everything is as it should.

Carburetor car owners are not familiar with the difficulties of the ignition adjustment process. This is usually done on rumor, which is not very convenient. Using a stroboscope, this process can be facilitated. However, industrial devices are quite expensive, so many make a stroboscope for ignition with their own hands.

Disadvantages of industrial models

Industrial devices often have certain disadvantages, due to which the usefulness of the device is very doubtful.

To begin with, the price of them is quite significant. For example, modern digital models It will cost a motorist in 1000 p. More functional models are already from 1700. Advanced stroboscopes are about 5,500 p. It is necessary to say that the stroboscope is automobile (with his own hands done) will cost a motorist at 100-200 rubles.

Often in factory devices, the manufacturer applies a particularly expensive gas-discharge lamp. The lamp has a certain resource, and after some time it will have to be replaced. And this in itself is equivalent to the acquisition of a new factory device.

Why should a stroboscope do it yourself?

Disadvantages of factory and technological devices pushing the car enthusiast to the independent manufacture of this device. In addition, much cheaper at the cost of equipping this equipment with LEDs instead of an expensive lamp. An ordinary laser pointer or flashlight is suitable as a source of diodes or donor.

The remaining details will also be in a penny. There will be no special tools. The budget of the manufacturing process of the stroboscope will be no more than 100 rubles.

How to make a stroboscope with your own hands?

The schemes and options for the manufacture there is a huge amount. However, in most, all projects on the creation of this gadget are similar. Let's see what will be needed for the assembly.

We will need a simple transistor Kt315. It can be easily found in the old Soviet receiver. The designation may be slightly different, but it does not matter. Thyristor KU112A can no problem be extracted from the power supply of an old TV. You can also find small resistors. Since we make a LED stroboscope with your own hands, then, naturally, you will need a LED flashlight. To do this, it is better to purchase the cheapest, from China. In addition, it is necessary to stock condenser to 16 in any low-frequency diode, a small relay at 12 A, wires, crocodiles shielded with a wire of 0.5 m long, as well as a small piece of copper wire.

Collect the device

The scheme is small, and you can place it right in that very Chinese lantern. So, through the hole in the flashlight, it is advisable to skip the wires to power the device. At the ends of the wires it is better to pour crocodiles. In the side wall, you need to do the hole if the Chinese have not made it already. Through this hole will be laid shielded wire. At the opposite end, it is necessary to insulate the braid and solder the very piece of copper wire to the main custody of the wire. It will be a sensor.

Device diagram and work principle

After the current through the power wires, the capacitor is very quickly charged through the resistor. When a certain charge threshold is achieved, the voltage resistor will flow to the opening contact of the transistor. The relay will work here. When the relay is closed, it will create a chain of a thyristor, LED and a capacitor. Then through the divisor, the impulse will fall on the thyristor control output. Next, the thyristor will open, and the capacitor is discharged to the LEDs. As a result, the stroboscope, with their own hands made, brightly flashes.

Through the resistor and thyristor, the transistor base is connected to the shared wire. Because of this, the transistor closes, and the relay will turn off. The lighting time of the LEDs increases, as the contact is not bred immediately. But contact will break, and the thyristor will be de-energized. The scheme will return to the base position until a new impulse goes.

Changing the capacitance of the capacitor, you can change the luminescence time. If you choose a capacitor of greater capacity, then the LED is a strobe, with your own hands, will be brighter and glowing longer.

Device on the microcircuit

The main part of this simple scheme is a DD1 chip. This is the so-called atigner 155Ag1. In this scheme, it is started only from negative pulses. The control signal will go on the CT315 transistor, and it will form these negative impulses. Resistors 150 to OM, 1 to OM, 10 to OM, as well as Stabilitron KS139 work as the amplitude limiters of the incoming signal from the ignition of the car.

The condenser 0.1 MF, together with the resistance of 20 kΩ, will be given the desired pulse duration that the microcircuit will be formed. With such a capacitance of the capacitor, the pulse duration will be up to about 2 ms.

Then from the 6th leg of the chip of the pulses that will be synchronized with the ignition of the machine to this point, they will fall on the base output of the CT 829 transistor. It is here as a key. The result is a pulse current through LEDs.

How is this stroboscope powered for cars? With our own hands, we need to spend a couple of wires to the terminals of the car battery. It is necessary to follow the charge level of the battery.

If you are surely gather this simple schema, you can immediately see how the device works. If suddenly brightness is not enough, this is regulated by the selection of the corresponding resistance.

You can use an old or Chinese flashlight as a device for a device.

One more stroboscope scheme

This stroboscope on LEDs, with your own hands made for this principle, can also be powered by a car battery. Diodes will allow protection from incorrect polarity. As a fastener, an ordinary crocodile is used here. It must be attached to the high-voltage contact of the first candle on the motor. Next, the impulse will be held through resistors and capacitor and will come to the trigger input. By the time this entry will already be included by the simultor.

The pulse is at the usual mode. Direct trigger yield has low level. Inverse entrance, respectively - high. The condenser attached by the plus to the inverse output is charged through the resistor.

The high-level pulse launches the simultor that switches the trigger and serves to charge the capacitor through the resistor. After 15 ms, the condenser is fully charged, and the trigger will switch to normal mode.

As a result, the simultor will react to this by a synchronous sequence of rectangular pulses by a duration of about 15 ms. The duration can be adjusted by replacing the resistor and the condenser.

The pulses of the second chip make up to 1.5 ms. For this period, transistors are opening, which are an electronic switch. Then the current flows through the LEDs. According to this principle, a stroboscope is running for a car (it has been manufactured with their own hands or not, it does not matter - both devices are shined equally).

The current passing through the LEDs is much greater than the passport. But, since the outbreaks are short, then the LEDs will not fail. Brightness will be enough to use this useful device even during the daytime.

This stroboscope can be collected in the case from the same long-suffering pocket flashlight.

How to work with the device?

Collecting on one of the diagrams of the schemes, it is easy and easy, and most importantly, to accurately adjust the ignition on the carburetor engines, check the correct operation of the candles and coils, control the operation of the ahead of the angle regulators.

In order to maximally set the ignition, usually proceed from the fact that the mixture is lit for a couple of degrees before the piston comes to the upper point. This angle is called the "Angle Angle". When the crankshaft turnover grows, the angle should also increase. So, this angle is set at idle, and then it is necessary to control the correctness of the setting on all modes of operation of the unit.

I exhibit ignition

Run and warm up the engine. Now we feed our stroboscope on the LEDs and connect the sensor. Now you need to send the device to the label on the GDM housing and find the label on the flywheel. If the moment is broken, the tags will be far enough from each other. Method of rotation of the MRR housing, achieve marks. When you found this position, lock the rubber.

Then it's time to raise momentum. Tags will disperse, but this is a completely normal situation. This is how the ignition setting is performed using a strobe.

So, we found out how the strobe is made on the LEDs with their own hands.

Stroboscope is an equipment that can continuously reproduce light pulses. Currently, the most common is a stroboscope on LEDs. He found his widespread use in various spheres of our life. For example, this device It is indispensable in the construction and repair industry (highlighting houses, buildings and structures), in the advertising industry, mechanical engineering, as well as during the design of restaurant and hotel complexes, cafes, night clubs and other things.

Thanks to a fairly simple design, a stroboscope on LEDs can be easily made with your own hands. This requires only schematic scheme, microcontroller, protective device, as well as sensors, depending on the functional purpose of the device.

This automobile strobe is powerful enough and can provide a number of LEDs. In order to assemble the device, you should buy a timer on the NE555 chip and the field transistor. The most suitable can be transistors of type IRFZ44, IRF3205, KP812B1 and a number of others.

The desired device is obtained quite compact and powerful. In addition, you can adjust the frequency of flashes of LEDs. Due to the fact that a small stress recession occurs at the transition, it is best to apply a Schottky diode. Also, it is necessary to create the required tightness of the plastic hull in which the board is located. In this case, there will be an indispensable synthetic silicone.

The field transistor is usually overheated with long work, so it should be installed on the heat sink. The diagram can feed the LEDs, the voltage of which does not exceed 12 volts. Otherwise, the wiring burns.

A sufficiently large number of car enthusiasts and professionals make a self-made stroboscope, since this procedure, practically, does not require any special knowledge and skills. In order to make a stroboscope with your own hands and at the same time comply with all the requirements and preferences, it is necessary to get a high-quality way to choose LEDs. At this time, LED devices are most popular, since their service life, as well as the brightness of the glow, significantly exceeds any other types of emitters.

On the Internet very long tried to find a scheme lED strobe. People understanding in electronics will now say "Think, a stroboscope, and what's difficult there." Stroboscopes are different, and all the previously known schemes did not fit me, since the sole purpose was to get the effect of a police stroboscope. Maybe not everyone noticed, but Militia flasher works very interestingly - each light flashes several times, then switches. As a result, we get an effect that is more famous called "Police Flashing".

The stroboscope can be assembled in different schemes using a multivibrator, but none of them ensures the desired effect or the effect is not stable. This task is quite fulfilled, if you can move MK, but in my case there was no possibility (unfriendly to microcontrollers). It remained to find an alternative on simple and affordable elements. On foreign sites, a very interesting electric hamme rate was found using the 555 series timer. The microcircuit works as a generator of rectangular pulses.

The scheme also used the K561I8 meter (in my case imported analogue is used, in general it is not critical). The chip, represents the decimal divider counter, that is, has 10 decrypted outputs. It consists of high-speed counters and decoders. The work of the counter, I think, is understandable to everyone, I will not explain. In order to get the flashing effect, where each LED flashes twice, you need to use two close outputs of the meter. When the signal is submitted to the counter, the outputs are alternately formed impulses. At first, the impulse is formed at the first output, then switches to the second, third and so to the end, then the process is repeated first. The frequency and intensity of the flashes can be adjusted if it is regulated by a resistor rating between 6 and 7 of the timer outputs. In the output stage, you can use almost any powerful feed conductivity transistors, 13007 were used in my version (dropped from the Ballast LDS fees).

You can also configure the number of flashes on each lamp (1-5 flashes before switching). To do this, we simply add diodes to the outputs of the chip. For example, one channel is the conclusions 4 and 2, and the second, respectively, 7 and 9, for a triple flash one channel, simply need the conclusions 1,3,5 (Channel One) and 6.8.0 (second channel) diodes to connect each Friend. The power of the connected load depends on the strength keys. If a low-power stroboscope is planned on LEDs, you can use low-power CT315 at the output, with more powerful loads, field transistors should be used as output keys.

The device has a fairly wide range of input voltages, starts to operate from 4.5-5 volts, while the frequency of the flashes does not change depending on the nominal input voltage. Such a stroboscope cost only $ 1.5 (transistors were available). From the scheme you can also eliminate the 5 volt voltage stabilizer, the microcircuit works perfectly from the car battery. If you plan to use LEDs, do not forget about restrictive resistors, and you will observe the turbidity of the LED crystal.

All installation made in an aluminum case from Chinese electronic transformer To power the halogen by 12 volts.

The hull turned out to be very suitable. The device is straight from the factory not distinguish, although the installation of the components was made on the dumping board.