Transistor circuit 6 2N2222 NPN Bipolar Junction Transistor BJT Constant Current Source

Подписаться 30 тыс.

Просмотров 10 тыс.

50% 1

electronzap.com/
/ electronzap
Transistor circuit 1 NPN BJT 2N2222 switch for beginner DIY electronics hobbyists • Transistor circuit 1 N...
Transistor circuit 2 PNP BJT 2N3906 switch for beginner DIY electronics hobbyists • Transistor circuit 2 P...
Transistor circuit 3 2N3904 NPN BJT wired as NOT Gate signal inverter explained • Transistor circuit 3 2...
Transistor circuit 4 two NPN BJTs 2N2222 pulse generator circuit beginner DIY electronics hobbyists • Transistor circuit 4 t...
Transistor circuit 5 Trimpot voltage divider controlled NPN 2N3904 PNP BJT 2N3906 DIY electronics • Transistor circuit 5 T...
Transistor circuit 6 2N2222 NPN Bipolar Junction Transistor BJT Constant Current Source • Transistor circuit 6 2...
Transistor circuit 7 AND gate switches 2N2222 NPN BJT and SN74HC08N quad 2 input pos AND gates • Transistor circuit 7 A...
Transistor circuit 8 NAND gate switches 2N2222 NPN BJT and SN74HC00N quad 2 input NAND gate IC • Transistor circuit 8 N...
Transistor circuit 9 Schmitt Trigger 2N2222 NPN Bipolar Junction Transistors BJTs trimpot • Transistor circuit 9 S...
www.amazon.com... for links to where I bought most of the things I use in my videos. Electronzap earns money from this storefront.
/ electronzap If you'd like to support my efforts directly
For informational purposes only. Read all warnings you can about all products you can and use at your own risk.

Опубликовано:

13 сен 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 26

@utkf16 Год назад

One of your best sessions and that's saying something as they all are a top notch resources to those of us looking to make head way in the hobby. Thanks

@Electronzap Год назад

Glad you enjoy, thanks for watching!

@KennethNicholson1972 5 лет назад

Excellent little study, and just what I need. At 47 I am long in the tooth but new to electronics. Your lessons are great. Thank you.

@Electronzap 5 лет назад

Glad to hear! I'm also in my 40s and learning a lot. I try to make videos I wish I could have found when I started getting back into electronics a few years ago. Thanks for watching!

@shvideo1 3 года назад

I love your practical circuits and your method of explaining them. As the thumbs up testify, you are a huge success. Thank you for sharing your knowledge so well!

@Electronzap 3 года назад

Thanks! Glad you enjoy!

@berkcan2439 3 года назад

Sir thanks for really good video. You are better than my teachers in collage. I checked other videos in this channel and feel like hit the gold :)

@Electronzap 3 года назад

Glad to hear, thanks for wathching!

@Snwman_ 3 года назад

Great video, great experiment and very well explained. Thank you.

@Electronzap 3 года назад

Glad to hear, thanks for watching!

@Thefarnworth1 5 лет назад

A very well prepared and detailed video, you are very enthusiastic and clear, thank you.

@Electronzap 5 лет назад

Thanks again for watching!

@TinyWords 4 года назад

Nice video 👍 But just noticed a slight error at 21:04. You said 6.3 Volts but should be 6.3 milliAmps 😁

@Electronzap 4 года назад

That happens lol.

@QCAndre 5 лет назад

Excellent demo, thank you very munch. Where can we print your diagram???

@Electronzap 5 лет назад

Thanks for watching! I just shared it to Twitter twitter.com/electronzap/status/1094670597467066369

@hichamtassi1753 3 года назад

Hello, nice video ! how to do to have a constant 1amp 14V power supply to charge a battery. WIth classical PSUs, when the battery reaches 13.5v, it takes ages to go to 14v because it draws very few current. Pushing 1Amp all the way will make it charge better and faster. Thanks.

@omiorahman6283 5 лет назад

Wow

@rasmushaun1773 5 лет назад

Time 13:26. Why do you get less than 4.26 mA with the 470 ohm resistor and the two leds? (: Nice video!

@Electronzap 5 лет назад

It was a little bit more load than the 10V power supply could keep at 4.26mA. When I raised the power supply to 12 volts it passed the same current as the 100Ω and 220Ω resistors in series with 2 LEDs. Thanks for watching!

@darshanm.b.7005 5 лет назад

I want to build a laser diode driver and i'm a novice in this field. I have a doubt that if the laser(load) has max voltage of 2.5V and Vcc is 5V, will this damage the laser?? Please clarify my doubt. Thanks

@Electronzap 5 лет назад

I don't have any laser diodes yet so don't know for sure. But if you can apply a voltage directly to a component (often you can't) then you have to use the voltage that the manufacturer says to use. Otherwise, you have to use at least one other component (often a resistor or maybe a constant current source like in the video above) to limit the current, which also sets a fraction of the supply voltage to the component of interest. Looking at cheap lasers on Amazon, it looks like you can just apply the voltage that they recommend.

@darshanm.b.7005 5 лет назад

@@Electronzap thank you for the reply.. I have a laser which has maximum operating voltage and current of 2.5 V and 75 mA, respectively... I have used the current limiting circuit like described in the video. My doubt was, in this current limiting circuit itself at the Vcc point mentioned can I give 5V supply even if the load has maximum operating voltage of 2.5V ??

@Electronzap 5 лет назад

Some of the supply voltage builds up across a series resistor. So, when you put a resistor in series with another component, all components will have less than the supply voltage across them. Exact amount depends on percentage of the total resistance that each component has, and whatever semiconductor voltage drops are involved. You can always measure the voltage across a component to make sure it is withing safe limits. Plus, as long as you stay below the maximum current then you should also be under the maximum voltage.

@darshanm.b.7005 5 лет назад

@@Electronzap I will complete the circuit and check it once ... thanks for the suggestions... Your video was really helpful ... 👍👍👌👌

@Electronzap 5 лет назад

Glad to hear!