Good to Know / Achieve Many Different Voltages Using 7805 and Zener
Ғылым және технология
Good to Know / Achieve Many Different Voltages Using 7805 and Zener
Hello, in these videos, I wanted to show you how to make a very stable working voltage regulator using a 7805 voltage regulator and a zener. thanks for watching
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#zaferyildiz
#diy
#electronics
#zener
#lm7805
Пікірлер: 43
I don't recommend using a zener diode unless it is a 5.1 or 5.6 volt zener. Using other zener voltages will make the output voltage drift over temperature. Instead, I recommend connecting a 470 ohm resistor between pins 2 and 3, then connecting a 2.5k pot between pin 2 and ground. This modification will give you a 5 to 30 volt variable output that is temperature compensated. Of course, the LM317 is made especially for this purpose. Connect a 240 ohm resistor between pins 2 and 3, and a 5k pot from pin 2 to ground will give you a variable power supply with an output from 1.2 to 26 volts. With both these circuits, the regulator heat dissipation gets quite high when you are running, say a 5 volt output with a 30 volt input, you will need a substantial heatsink and output current will be limited to about 250 mA.
Zafer ты очень крутой электронщик👍Я бы не додумался стабилитрон добавить😂 твоё решение очень круто💯
Спасибо. Даже не представлял себе, что вопрос так просто решается. Вот уж действительно, век живи - век учись.
Eline saglik ustam projelerin çok güzel olmua
Great idea !👍. Now gettting zeners, 😊. Thanks,🍀☀️
Очень полезная информация. Спасибо!
🤔🤔🤔🤔🤔🤔🤔😀😀😀💯💯💯💯💯💯💯💯💯✔✔✔✔👍👍👍👍👍👍. BUENA IDEA. GRACIAS.
@ZAFERYILDIZ52
Күн бұрын
thx my friend
فيديو قصير +معلومة حلوة=ابدااع❤❤❤
@anasofiaparente2448
2 күн бұрын
👍👍👍👍
very useful circuit
@ZAFERYILDIZ52
Күн бұрын
thx my friend
Very nice👍👍👍👍 video thank you
@ZAFERYILDIZ52
Күн бұрын
thx my friend
Also you can get lower than 5v by adding 1n4007 in series with the output pin3. With every diode, voltage is reduced by 0.7 v. In some circuits, both series and pin 2 diodes are used to reduce and increase voltage simultaneously to isolate 7805 from reverse voltage damage
Hi👋🤠; I never thought of using the common pin for anything but "Common Negative" Since the 1980s, I just learned something NEW! 🤔🧐😉... Now, if you just add a power Transistor as an "Emmiter Follower" Stage, you can "Sink" Any Amperage you want! 🤔💡😉👍👍👍👍👍
@Yanto-Kun-JP
Күн бұрын
o.O i did know the usage from 1984 :) (japanese common sense it is :)
¡¡ G R A C I A S !! ✨
teşekkür ler
@ZAFERYILDIZ52
Күн бұрын
Ben teşekkür ederim kardeşim
Teşekkürler.
@ZAFERYILDIZ52
Күн бұрын
ben teşekkr ederim
If you use your intuitive zener method, does it also increase the maximum input voltage for the 7805 device? It would for the input/ground section because the zener presents a lower voltage on the ground, but I am curious about the maximum allowed voltage difference between the input and the output terminals.
Wow, that's amazing! Your inspired me that what voltage of the unknown zener diode is🙏
@fenixalorca3143
2 күн бұрын
Muy Obvio!! jejeje
Which soldering iron you use?
Make a video with variable zener TL431 and 7805
Cái quan trọng nữa là mạch này được bao nhiêu a chứ dòng yếu thì làm chơi vây
Quisiera saber como aumentar el amperaje de la salida de un lm7812
🤗👍👌⭐💯
@ZAFERYILDIZ52
Күн бұрын
thx my friend
@lackodhr.5303
10 сағат бұрын
@@ZAFERYILDIZ52 You are welcome 🤗
Ustam işine karışmak gibi olmasın ama rica etsem farklı kanallarda acarmısın mesela bu kanal turkce onur kanal rusça onur kanal ingilizce gibi hem izlenmen de artar hemde ingilizce veya turkce bilmeyenler içinde kolaylık olur ❤❤
Helloo❤❤❤
@ZAFERYILDIZ52
Күн бұрын
thx my friend
How many AMPS? Spec says up to 1.5A So doubling it would give you 3 Amps?
请帮忙给个材料清单
With 7805, 555, lm317, lm358, lm386, 2sc3055 is possible trip to Moon 😅
@fenixalorca3143
2 күн бұрын
De Acuerdo, aunque No con lo de la Luna!! jejeje
@MarcoAntonioMigoranca
2 күн бұрын
@@fenixalorca3143 Eron Musk with engine AC, PWM circuit will go a Mars eheheheheheh
Это уже это уже каждый школьник знает
Well done, very good, so you lose the short circuit protection! I don't follow you anymore, you're too childish!
@dean5263
2 күн бұрын
The internal current sense resistor would still have the same voltage drop across it despite the external components being added, allowing the internal circuitry to function normally. I can go on to quote the product manufacturer specification sheet where it states “In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.” But I think that you already knew that and were just testing the master.