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НИКОГДА НЕ ВЫБРАСЫВАЙ АЙКОСЫ и ВЭЙПЫ пока не увидишь это ВИДЕО

НИКОГДА НЕ ВЫБРАСЫВАЙ АЙКОСЫ и ВЭЙПЫ пока не увидишь это ВИДЕО

Channel: Дмитрий Компанец

РЕЛЕ РАЗВОРОТА всего на двух деталях Мигает как ПОЛИЦИЯ

РЕЛЕ РАЗВОРОТА всего на двух деталях Мигает как ПОЛИЦИЯ

Channel: Дмитрий Компанец

Компанец Дмитрий

удивительная самоделка

очень простая схема

самые интересные схемы для пайки

невероятно простая схема

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простая электроника

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Hello friends Today we will arrange a

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specific showdown with the circuit of a

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lamp which, of course, has given up a

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long life, but by the way, such

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a lamp is very, very expensive. Now

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I’ll try to find a picture on the Internet and

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show you it, of course, for this

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lamp for this LED

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strip, as I call it on which has a bunch of

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LEDs attached, very wise

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wise Here's a box in which

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there is a wise wise circuit, let's open it up

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and see what kind of electronic wisdom you have

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Look at how much

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interesting stuff there is Well, let's

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not play hide and seek, as they say, and

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let's see what's here Well, there's everything

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to protect the startup of this circuit, and

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of course there are filter

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capacitors and galvanic decoupling choke,

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this circuit does not have what

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seems like a transformer, in

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fact it’s just a pumping choke,

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it’s controlled by this fairly

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popular standard and pretty

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good field-effect transistor. Well, here of

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course there is a rectifier

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diode bridge like this MIA of medium

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power, I’ll tell you straight, the circuit is powered

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directly by 220 volts and the only

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surprising thing I saw here is

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this kind of inductor, which is shunted

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according to Soviet circuit design. Please

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note that in this case, it is not at all what saves us from

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induction surges on this inductor

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some kind of

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lousy diode And a real

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resistor

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But that’s all the good words about this

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circuit. Honestly, I’ll finish. Why are

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these tin plaques and

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wide tracks needed for this to be a

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cooling radiator? This one needs cooling. This is a

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microchip or a controller

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or even current and voltage stabilizer

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And that’s all, that’s all that this microcircuit

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does. Yes, in this case, we could

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say that this is a minimum of details, although it’s

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heavy, such nonsense is of no

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use to anyone and everything was crammed into one chip. This is

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good. This is good for computers for

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spacecraft. But for the

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LED line that this circuit

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was designed to illuminate, this turned out to be

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not only not enough, but on the contrary, it put the

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entire lamp out of action. The lamp is

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expensive

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if you don’t delve too deeply into this

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filtering and power supply circuit, which

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should work through this diode

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bridge and supply rectified

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voltage to this little guy who is in

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pulse mode, thanks to the fact that

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this microcircuit sends pulses to it

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with the help of this inductor, pumps up

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this capacitor by pumping up

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Energy Capacitor

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You can find the calculation of the energy of the capacitor yourself on

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the Internet But in this case it is a

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capacitor of 450 volts and 22 uF at once

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you can understand how much energy it can

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accumulate in you and give it to the load,

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respectively, and smooth out the pulsating

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voltage and with all this voltage

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power this LED line,

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the line is quite long,

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I won’t show it all, even if I drag it,

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it consists of 2 times 66, add these two

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numbers together, I don’t even know why the

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designers came up with such a figure because

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this entire LED line is powered by two times 66

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voltages of 45 Volts. Yes, this is usually a

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series garland. Well, like an ordinary

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Christmas tree garland consisting of how many, well,

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you’ve already counted, there are 132 LEDs

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and these are typical LEDs and not at all the

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so-called sub-matrices with

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many crystals, there are no in these in these

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small cells there is only

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one crystal covered with phosphor,

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we will arrange everything neatly on the table I

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will try to show you what

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voltage this pulse circuit

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blows energy into this capacitor to

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power this This LED line can

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already be seen that on the voltmeter I have a

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constant voltage of 170 volts, they are

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falling because I just tried to

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plug this thing into a socket. Let's

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turn it on and see. We remember that

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the capacitor is this Great

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smoothing capacitor, it should

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withstand 450 volts. It can withstand 450

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Volts, but look what’s happening, the

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LED line is blinking, blinking with

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terrible flickering pulses, which of

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course does not make it operational,

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turn off this disgrace, and while the

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capacitor drains its remaining

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energy, the LEDs glow a little

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while the line was blinking. Of course, we could

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see if all the LEDs here are

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really working Well, let’s

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turn it on again let's try to see

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if there's a breakdown somewhere and do we need to

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look for failed LEDs? Yes, there

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really is a failed

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LED, and so now

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I'll go through the entire line, like this, I'll show you

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my kitchen table, like this, it lies

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and lights up. Yes, right here we have a

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breakdown such as a burnt-out LED

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that actually did not become an insulator.

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Please note that this is a

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series-connected Matrix,

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it is this that causes these flashes, a

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pulse circuit that cannot

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decide what is happening with this

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matrix LED and whether it is necessary to increase

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the voltage or decrease it. But if

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instead of this wisdom and this

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arduino-like head with the brains of the

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microcircuit, an ordinary rectifier was used

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Well, of course, filtering

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capacitors would again be useful to us,

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protection in the form of

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fuses like these But everything else could be

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completely thrown out along with the field-effect

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transistor here this choke and even

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this choke could also be

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neglected Yes And this ring would

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have to be thrown out because there is

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practically no interference from the high-frequency components from a circuit consisting of an ordinary diode bridge of capacitor fuses. Although, to be

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honest, silicon diodes are

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still noisy Germanium ones are better, but

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I think that competent people can

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object to me. You’re saying something, because

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our LED line consists of

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132 LEDs, and although these are single

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LEDs, their power supply should be

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about 3 Volts for them to burn brightly,

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but guys, such a line, of course,

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wouldn’t just light up from a

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socket voltage of 220 volts. True, we know that

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if we use a diode bridge and at least

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one smoothing capacitor is especially

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good, then we have an extra

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voltage of 350 Volts. Yes, this is not the 450

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Volt required for this line, but

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firstly, the line could be

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shorten so as not to encumber such a

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circuit because it becomes

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useless due to its dullness and

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defectiveness. And if you need to make

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the lamp brighter, then

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put two such lines in parallel and you can even use

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two power supplies, each consisting

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of a diode bridge. Let me show you, I don’t

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touch it with my hands because there the voltage is

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still preserved, here it is, a diode bridge,

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this is it, this is the diode bridge,

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fuses and, of course, a capacitor

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as a quality Well, more precisely, to these

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fuses you can also add one

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resistor in 20 ohms, a sufficiently large

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power and because this is a

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charging capacitor a large capacity

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can damage the diode bridge. But

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I have talked about this many times. Yes,

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this information is always available on the network.

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More simplified power supplies do not

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allow

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LED strips like this to blink, and LED bulbs in general.

00:07:04

Electronics clowns who say

00:07:06

that there is no evil in these two chips No, of

00:07:09

course they will claim the opposite,

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that it is only thanks to these

00:07:12

chips that these LEDs can glow normally and

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stably, but Believe me, if

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your light bulb or LED

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strip is blinking, then it’s not these

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LEDs that are to blame if you turn it on

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just like that without any sophisticated circuits

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at least such at least such a linear

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stabilizer is a pulse stabilizer,

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then the light bulb will never blink and it’s

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not

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always the fault of the LED that is to blame for the failure of these light bulbs. Although in this

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case you saw in this line

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the LED burned out, but the line remained

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operational at all not due to the

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fact that a pulse voltage is supplied here;

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this pulse voltage is

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smoothed out by a capacitor and the

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entire line is powered by a constant smoothed

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voltage. This means that if there

00:07:56

was a constant smoothed

00:07:57

voltage here, even without any microcircuits, the

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line would continue to work. But it

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would hardly be able to blink

00:08:03

because precisely these linear elements

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make, well, since they consider themselves

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smart, they make this

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ribbon blink, when the LEDs and

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some transient processes occur, these

00:08:15

processes lead to a change in the voltage

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on one LED and is transmitted through the circuit

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to this not smart structure, at least this at

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least this this brain is trying

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to correct the situation, it supplies more

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voltage, the transient processes in the

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LED are intensified and what causes

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blinking and flickering is what we do

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n’t need at all, but is it possible to cure

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such a lamp or, say, this

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LED lamp and of course not with

00:08:40

the technique that is so popular on the network

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when one after another, a wise blogger

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unsolders the LED with even a teaspoon,

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even a soldering iron, even a wire, even a

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match, a washcloth, foil,

00:08:51

some other crap from the toilet, and they say,

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I taught you how to repair

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LED light bulbs, now LEDs

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are being made, so when it burns out, it is

00:09:00

practically not an open circuit,

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it burns out and it becomes like a

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jumper, that is, it closes itself and

00:09:08

So all these intricacies made for

00:09:10

hype And shown to you in

00:09:11

Internet videos are just Louboutin, in

00:09:13

fact, you need to think about what to

00:09:15

power these LEDs and how to

00:09:17

manage the knowledge that these are exactly

00:09:20

these microcircuits and are to blame for

00:09:22

all these intricacies I’ll try and I’ll

00:09:25

probably do it in the

00:09:26

next video because wise

00:09:28

bloggers stretch the rubber like Aunt Zina

00:09:30

I want to be a wise blogger and

00:09:32

you like it, that is, in the next series I’ll

00:09:34

try to make the same power supply like this,

00:09:37

that is, do it so that

00:09:39

with the help of the same power supply, with

00:09:41

the help of its own spare parts, but bypassing all

00:09:44

its intricacies, it would be possible to braid an

00:09:45

LED strip like this. Well, besides,

00:09:48

my subscribers and viewers probably know

00:09:50

what an LED strip is; I can

00:09:52

power it much easier. And even easier. Can I

00:09:54

power it? Andrey Volt Visit his

00:09:57

channel, he does truly miracles and

00:09:59

with just one stone battery This is

00:10:01

such a long LED strip,

00:10:03

the truth of the other It’s flexible,

00:10:05

it glows so brightly That it lights up the room I

00:10:08

recommend the channel Go take a look,

00:10:10

you can criticize or you can praise

00:10:12

because the person is engaged in real

00:10:14

creativity and not all crap there, but

00:10:16

that's all for now, wait As they say, the

00:10:18

answer is like the nightingale of summer Will I be able to get out of

00:10:21

this from this nonsense and rubbish

00:10:23

too smart make a stupid device

00:10:25

that will stupidly make such an

00:10:27

LED strip glow While guys

00:10:29

Dima was with you Far East from the

00:10:31

city of Vladivostok

Description:

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