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Download "Лавинный пробой транзистора и опять мигаем светодиодом"

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Video tags

мигалка на одном транзисторе
транзистор
генератор
Лавинный пробой транзистора
полевой транзистор
как работает транзистор
простая мигалка на одном транзисторе
светодиод
мигающий светодиод
Blinking LED
сигнализация
led
обозначение светодиода
питание светодиода
подключение светодиода
проверка светодиода
светодиод 12в
светодиод подсветки
Светоизлучающий диод
цветной светодиод
подключение светодиодов
светодиоды
схема на одном транзисторе
электроника
радиоэлектроника
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Subtitles

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  • ruRussian
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00:00:01
Hello Today there will be another and most importantly
00:00:03
educational video and with this video we will
00:00:06
immediately shoot several birds with one stone. First
00:00:09
it will be an interesting circuit based on
00:00:11
LEDs and not just LEDs. And
00:00:15
we will make this LED blink. I
00:00:17
understand that some will say what’s the
00:00:19
joke, you can immediately use a blinking
00:00:22
LED Yes And here is a video about this
00:00:24
LED, but in addition to its
00:00:26
advantages, it has a number of disadvantages. First, it
00:00:29
blinks at one frequency and quite
00:00:31
low. And if you want to make a flasher
00:00:35
with an extended blinking range,
00:00:37
then of course you need to make some kind of
00:00:39
generators. And today we will make a
00:00:41
very very simple one generator on one
00:00:44
transistor
00:00:45
And now the next hare which we
00:00:48
will shoot in our video We
00:00:50
will make a generator on this transistor using the
00:00:53
avalanche breakdown effect, as if the transistor will
00:00:55
break through But every time after that it will
00:00:57
recover and work further, it
00:01:00
will go to a cyclic circuit so
00:01:03
non-standard interesting that even in
00:01:06
the base is not involved in it. And as you know,
00:01:08
if you use only the
00:01:10
collector and the meter, the transistor is closed, it
00:01:13
turns out that due to the avalanche
00:01:15
effect, it will periodically
00:01:17
open and perform the function of a
00:01:19
generator that will start blinking our
00:01:22
LEDs. Although you can connect a speaker,
00:01:23
some kind of generation will also be generated in it
00:01:27
We will assemble this sound circuit on a breadboard, for
00:01:30
this I will take BC 546 transistors, but
00:01:33
again, not any transistor is suitable for these purposes.
00:01:35
But these are suitable. You
00:01:38
can also use KT315.
00:01:41
Other Soviet imported transistors, in general,
00:01:45
need to be experimented. Although, let’s say,
00:01:47
datasheets often show replacement of KT315 2n
00:01:51
222 but he didn’t want to work in this circuit
00:01:55
and so we assemble this very simple
00:01:57
circuit, the base remains hanging with us. As
00:01:59
you can see, there are two current-limiting resistors in the air,
00:02:02
one for one kilo-ohm and
00:02:05
the other for 100 Ohms.
00:02:06
We also need any visible
00:02:09
emission spectrum of the LED, I took
00:02:12
green although you can take red,
00:02:14
blue and white, in general, whichever one you
00:02:16
like,
00:02:17
and an
00:02:20
electrolytic capacitor. A capacitor from 100
00:02:22
microfarads can be higher, or lower. As
00:02:25
you understand,
00:02:27
our blinking frequency will depend on the capacitance of the capacitor, and
00:02:31
now I have already assembled the circuit, I connect
00:02:34
the voltage and start on an adjustable
00:02:36
power supply, which we also
00:02:39
made ourselves in one of the previous videos, I
00:02:42
will add voltage and now we approach
00:02:45
12.5 V and the base starts blinking,
00:02:51
again I emphasize it hangs in the
00:02:54
air and the transistor opens itself, an
00:02:56
avalanche breakdown occurs, the capacitor
00:02:59
is charged through a resistor to the required
00:03:02
voltage at which this
00:03:04
breakdown occurs, then the capacitor is closed by an
00:03:07
open transistor and it is discharged
00:03:10
after this, the whole cycle is repeated,
00:03:13
the capacitor is again charged to a
00:03:15
critical voltage and 5 another
00:03:18
breakdown
00:03:19
if you take the capacitor capacitance less than
00:03:21
100 microfarads blinking Will be even more
00:03:24
frequent frequency will increase Let's
00:03:26
try more for effect
00:03:28
Let's set the capacitor to 1000 microfarads
00:03:32
and As you can see, the frequency
00:03:35
has decreased significantly.
00:03:40
The circuit is quite interesting.
00:03:42
Anyone can repeat this circuit. As I
00:03:44
already said, you need to select a transistor
00:03:46
that will work very well in
00:03:49
this mode. Also, this circuit can be
00:03:50
used as a master oscillator for
00:03:53
some of your other circuit solutions.
00:03:56
If you Do you have any ideas about this,
00:03:59
write below under the video if you liked it, like
00:04:02
it and don’t forget to subscribe
00:04:04
to the channel

Description:

Лавинный пробой транзистора и нестандартные схемные решения. Простое решение это Мигающий светодиод (Blinking LED) Но он не имеет регулировки частоты мигания. И поэтому сделаем другую мигалку. Видео о блоке питания https://www.youtube.com/watch?v=7DGWmO5QjVU Видео мигающий светодиод https://www.youtube.com/watch?v=i-0kqfu9vNQ Частенько мы сталкиваемся с тем что нам нужно собрать какую-то простую мигалку на светодиоде. Например чтобы сделать какое-то интересное устройство или просто то для привлечения внимания (муляж охранной сигнализации) И начинаем городить какую-то схему. Тот же мультивибратор или схему какого нибудь другого генератора. Светодиодный пробник-индикатор Не используя дефицитных деталей. А только светодиоды, диоды и резисторы можно собрать очень простой индикатор напряжения. Предыдущее видео: Очень простой Светодиодный индикатор напряжения. Схема проще некуда https://www.youtube.com/watch?v=36QlOIy1ACg Статья на сайте : Очень простой индикатор напряжения на СВЕТОДИОДАХ http://schip.com.ua/prostoj-indikator-napryazheniya-na-svetodiodah/ Предыдущее видео: 🟢 Как зависит напряжение питания светодиода от его цвета. Электроника для НАЧИНАЮЩИХ https://www.youtube.com/watch?v=hAQmt-9d5U0&t=9s Статья на Сайте http://schip.com.ua/pitanie-svetodioda-ili-padenie-napryazheniya-na-nem/ Падение напряжения на светодиоде То что цветные светодиоды отличаются друг от друга цветом свечения. Это я думаю понятно всем. А в чём же ещё их главное отличие друг от друга. А также -- ✅ PC817 принцип работы и очень простая проверка -- http://schip.com.ua/pc817/ ✅ PC817 эксперименты с оптопарой -- http://schip.com.ua/pc817-eksperimentyi/ ✅ Генератор на оптроне. На примере PC817.-- http://schip.com.ua/generator-na-optrone-na-primere-pc817/ ✅ Микросхеме TL431 не подвластна времени — 45 лет нет замены — Секрет успеха http://schip.com.ua/tl431-new/ ✅ Микросхема — Таймер. Начните знакомство с NE555 --http://schip.com.ua/ne555/ Если вы хотите разобраться в электронике нужно начинать с азов ©️ Мой Сайт http://schip.com.ua/ ©️ VK https://vk.com/mir__uvlecheniy ©️ VK сообщество https://vk.com/tele__mir

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