Download "✔ Как перемотать импульсный трансформатор 👐🛠 блок питания ATX"

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0:00

О видео

0:19

Подготовка к разборке трансформатора

4:25

Подготовка к размотке трансформатора

6:50

Размотка

11:45

Намотка

16:00

Готовый результат

17:15

Заключение

Самый простой способ разобрать ТРАНСФОРМАТОР

Самый простой способ разобрать ТРАНСФОРМАТОР

Channel: Азбука Радиосхем

Мощный импульсный блок питания IR2153 с защитой. Синхронный выпрямитель

Мощный импульсный блок питания IR2153 с защитой. Синхронный выпрямитель

Channel: UCAN DIY

Разница между УЗО типа A и AC вся правда | Дурные советы

Разница между УЗО типа A и AC вся правда | Дурные советы

Channel: Дмитрий Электромонтажник Дурнев

Простейший импульсный блок питания IR2153

Простейший импульсный блок питания IR2153

Channel: UCAN DIY

Импульсный блок питания своими руками. UC3842

Импульсный блок питания своими руками. UC3842

Channel: UCAN DIY

Намоточный станок с автоукладчиком | Намоточный станок ЧПУ своими руками

Намоточный станок с автоукладчиком | Намоточный станок ЧПУ своими руками

Channel: Дяченко Антон

Импульсный трансформатор, замеры, расчёт.

Импульсный трансформатор, замеры, расчёт.

Channel: UCAN DIY

Импульсный блок питания своими руками. UC3842

Импульсный блок питания своими руками. UC3842

Channel: UCAN DIY

как перемотать импульсный трансформатор

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00:00:15

are the nuances. All this I will explain, show. Sometimes it is necessary to rewind the transformer.

00:00:23

If, for example, you draw from the power supply, let's say not 14 volts,

00:00:33

but, as in my case, 28-29 volts, in order to charge a

00:00:40

24-volt battery, let's say. The transformer is out. I already

00:00:50

rewound it before. It can be seen that the frame is already partially broken.

00:00:59

Already dismantled it. When in

00:01:15

the factory version, it is sealed with all these places with glue, such as epoxy or

00:01:23

something like that. Holds very tight. To take it all apart, you need to boil it in water.

00:01:31

Outside, the film is like this. It covers the sides of the core. This film

00:01:45

must be removed. Collect water in some container, lower the transformer there and

00:01:56

heat it. Heat the water to a boil,

00:02:01

put on a low fire and so that it doesn’t seem to boil too much, it’s not right that

00:02:08

it gurgles right there.

00:02:13

They all cook differently, that is, by time I mean, they can cook for 15-20-30 minutes.

00:02:27

Sometimes it takes five minutes to unstick, let's say.

00:02:34

I have tried heating with a hair dryer before, but high temperatures are not good for the core.

00:02:46

Boiling point 100 degrees. Up to 100 degrees, heating, as

00:02:57

it were, is also not very good, but this is a more gentle mode, let's say, than let

00:03:08

's heat it with a hair dryer. Firstly, it will not stick, even if you start to heat it with a hairdryer. You will just break.

00:03:14

I already went through this. Either this part breaks, or this part, or while you are taking it apart here, this part is

00:03:22

cut in half. Usually glued here and here and here. While you unstick it, she keeps it here.

00:03:29

Broke off. If it is broken off, it is already undesirable to use such a core, even if you glue it.

00:03:41

When it boils, this part should

00:03:50

easily move away. It happens that a little with a clerical knife to pry somewhere, but without

00:03:57

any effort. A little bit of pressure and it will break right away. Be sure to put in cold

00:04:05

water and heat gradually. Do not throw

00:04:11

the transformer into hot water. The core can immediately burst, from a temperature difference. After dismantled,

00:04:19

it is necessary to wind the secondary windings all. Here I already have only one secondary

00:04:32

winding in my version. Here she comes out. There were 12 volts, 5 volts, 3 volts. Since

00:04:44

several voltages are used in a computer power supply, all these windings

00:04:51

must be removed. We need only one winding in the secondary circuit. The primary winding remains the

00:04:59

same. To get to the secondary winding, you first need to unwind part of the primary

00:05:07

winding, since the primary winding is wound in two parts. The primary winding is initially

00:05:15

wound on the frame. The first part, then the secondary winding is wound, and the primary winding ends with the

00:05:28

second part. Usually the primary winding has an average of

00:05:35

38-40 turns in total.

00:05:39

When you unwind the second part of the primary winding, accordingly, you need to remember

00:05:49

in which direction it was wound. Now I will unwind, now I will

00:05:58

unsolder from here and go to unwind. And the number of turns must be counted.

00:06:05

When you wind the secondary, it may turn out that you have already wound the turns, and you

00:06:14

still have one turn left. It's better to cut it off. No need to continue. If you

00:06:20

counted 18 turns, let's say, then 18 turns should be. A coil

00:06:28

to coil is wound, completely filling the window. In this case, the window is such that it is completely filled.

00:06:36

Now I will unwind it, and show how the secondary winding

00:06:50

winds. I unwound it. In my version, it turned out 19 turns

00:07:10

. Then I also wind the same wire back.

00:07:22

Be sure to remember in which direction it all wound.

00:07:31

As a rule, in general, the primary winding is wound in one direction.

00:07:40

First, the first layer of the primary was wound, went to the middle, then from this middle it continues

00:07:50

to wind further, when the secondary is already wound, it continues further from this middle.

00:07:55

If the primary coiled from the bottom up, reached the top, filled the window, 19 turns of the first part,

00:08:08

soldered down. You remember that

00:08:16

she soldered here. Then you wound the secondary. How much do you need there and you start the second part of the primary winding

00:08:23

from the midpoint, lift it up again and wind it further clockwise, only filling the

00:08:29

window down. If the first part was wound up, here we are already filling it down. And

00:08:35

solder it to this edge. As a result, it turned out that there are 19, here 19. We received 38 turns. Usually

00:08:46

this is how 38-40 turns of the primary winding come out.

00:09:09

The screen is also soldered here. It is recommended

00:09:18

to solder the screen so that there is no interference, noise.

00:09:29

I won’t unsolder, I’ll just take it aside

00:09:35

.

00:09:47

The screen is soldered to the beginning of the primary windings. It can be seen from here that it

00:10:02

also stands there. Here 5 turns are wound

00:10:09

with a double wire. As I said 5 turns.

00:10:23

5 turns on one side, since this is a full-wave circuit with a tap from the

00:10:33

middle, 5 turns the first part is wound, 5 turns the second part. Total 10 turns.

00:10:44

Now I will unwind it all. You will need to add

00:10:58

twice as many turns. What needs to come out should come out.

00:11:38

I removed the second one. Further, if you unwind, there will be the first part of the primary winding.

00:11:45

There will be a screen first, then the primary winding. Now I also wind the secondary winding

00:11:57

, filling the window from bottom to top. Just for 10 turns, the entire window will most likely be filled.

00:12:08

The middle is displayed and continues again, in the same direction, only from top

00:12:17

to bottom. Or from 2 legs, only it is already wound counterclockwise and brought to the middle.

00:12:24

The first leg is wound clockwise, the middle is taken away. The second

00:12:33

leg is wound counterclockwise and retracted to the middle. Or

00:12:39

we wind 10 turns clockwise along the first leg, take it up, twist it here, return it back,

00:12:46

and wind it from the middle of the hourly arrow also but down. That is, 10 turns to the middle, from the middle

00:12:55

10 turns also down. It turns out 20 turns. We solder everything. In my case, these are these two legs.

00:13:02

Each power supply is different. But usually these two 12 volt legs are on

00:13:09

the power supply board. Depends on

00:13:16

who the manufacturer of the power supply is. Now I'm looking for a wire and start winding.

00:13:26

Wound the secondary winding.

00:13:52

Laid down a layer of insulation. Thermal tape must be used as an insulation layer

00:13:59

. Sold on aliexpress. I don't have thermal tape on hand.

00:14:09

I used plain tape. Wound so many transformers.

00:14:16

If, of course, it will warm up well, it will melt. As

00:14:25

a rule, I do not load the transformer so that it goes into overheating. Here it is one end,

00:14:33

the second end I have already started from here, only in the opposite direction. It can be seen that he was the first,

00:14:39

left clockwise, this one went counterclockwise. Just the window was

00:14:46

filled with 10 turns. So he came out, then these two ends will be connected together. This will be

00:14:53

a negative overall. Now I've put in a layer of insulation. Now the screen layer.

00:15:04

I will isolate and start winding the second part of the primary winding. Since

00:15:20

I unwound it, it must first be leveled. Any wire before winding must be leveled.

00:15:28

You catch one edge in a vise, pull it, and with something rounded, such as a screwdriver, drive

00:15:40

back and forth to make it level. So that it is even, without any folds, kinks. The smoother

00:15:47

the wire, the smoother it will lie here. The smoother, the better the parameters will be. Firstly

00:15:54

, the parameters are better, and secondly, it will be more convenient for you to stack it all. Coil to coil

00:16:00

Here is the finished result. I added a little bit of molecular glue along the edges

00:16:13

so that the core would not hang out. Here, but the gaps are also

00:16:26

planted with molecular glue, although it is recommended to plant on a more liquid glue so that the gap is smaller.

00:16:34

Disassembling it later is more problematic. So I decided to try on molecular glue.

00:16:48

Already glued. It seems to hold everything. Now glue around

00:16:58

with tape. This turned out to be a transformer.

00:17:11

For many, this can be difficult. In the next video, I will explain how

00:17:20

to make a charger to almost any person who

00:17:28

does not understand electrical circuits at all. It will be in the next video.

Description:

В данном видео объясняю как перематывается импульсный трансформатор компьютерного блока питания, для повышения выходного напряжения Подписывайся на меня в дзен 👇🤝 https://zen.yandex.ru/id/622c1bd7b54b69717ad85a64 Тайминг 🕐 00:00 О видео 00:19 Подготовка к разборке трансформатора 04:25 Подготовка к размотке трансформатора 06:50 Размотка 11:45 Намотка 16:00 Готовый результат 17:15 Заключение

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