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Adjustable Voltage Regulator 0-40V 12A
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- Опубликовано: 10 авг 2023
- #voltageregulator #adjustablepowersupply #2n3055
Комментарии • 48
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Maximum 1.5 to 2 Amp.
12 Amps results in 12² * 0.1 = 14.4Watts dissipation in a 3 Watt resistor!!
you need to add a min of a zener or may be a TL431 to have good stability in output voltage.. plus as somebody pointed out with heavy heatsink you can at best get 60w across the transistor. which means at 10v out put at best 2amps can be drawn....
Für größere Leistungen nimmt man Schaltregler, die einstellbar und selbstregelnd, unstabiler Eingang zu stabilem Ausgang. Und wenig Wärmeverluste.
EXTREMELY HELPFUL THANK YOU
il 2N3055 è per massimo 3-5A ,inoltre qunado ben raffreddato può dissipare max 60W !!!!
Сгорит нахрен! Радиатор в студию! 40 вольт, 12 ампер - это 480 ватт, радиатор надо 10000 кв. см. и с вентилятором.
CONGRATULATIONS
Circute daygrm very useful
Jeder LEISTUNGSTRANSISTOR MUSS MIT EINEM KÜHL- KÖRPER MONTIERT WERDEN, je größer je besser. Die Schaltung ist praktisch eine einstellbare Z diode, wird in Verstärkern zur Ruhestromeinstellung gebraucht.
Öncelikle teşekkür ederiz 3055 ile ilgi rf devresi isteyebilirim sizden yillar önce böyle bir uzay montaj yapıyordum darlikton bir baglanti yaparken fm radyo calisiyordu ve onun frekansi etkiledi .
Ayrica kaç watt güç kullandığınızı videolarda belirtebilirmisiniz çok teşekkür ederiz
If you never show you actually measuring the Amps 😢how do you know that you got the amps you stated in your thumbnail?
Hola. Buena explicación, pero en el plano hace falta el Diodo 1N5408.
Ve anfi olursa örnek arak ses kalite testi icin kapasite nf testleri giris sinyal testi cikis sinyal testi verici mesafe testi
Need some serious heatink to run a 2n3055 at 40v/12a!
Yes
Diode IN5408 has not been shown in circuit diagram. Why?
I forgot
@@TARIQLAB ok sir.
is this a variable input and output voltage regulator?
if so, can this be used between a car alternator and the electronic components, to protect the components from higher voltage when the alternator diode goes bad?
No, there is no regulation.
@@akirchner3 what do you mean?
❤❤
❤
ดีมากครับ
12A com 1x 2n3055? 🤔🤔🤔
😆😆🙃😉
❤❤❤
For those times when you can waste watts like there is no tomorrow.
Nice
The 1N5408 doesn't show on the schematic.
Nice 👍
1 x 2N3055 12A ?????
Input ... Volt?
40
маладиес
😂😂😂
reply
Може да да 12А, али при 10V макс.
За съжаление, не може, тази конструкция е пълна глупост. Не го поставяйте.
Транзистор 2N3055 има при ток Ic = 10A усилване Hfe = 13. Токът на основата Ibmax трябва да бъде 10 000 mA / 13 = 769 mA. Има съпротивление от 270 ома. Действителният Ibmax ще бъде Un / 270 = 40v / 270 Ohm = 148 mA. Вторият проблем: Потенциалът на 20k дава Ibmax = Un / 10270 Ohm = 40v / 10270 Ohm = 3 mA. Създателят на електрониката не разбира. Прави си от другите луди.
How much can the potentiometer disappaite? Ideally need an extra driver transistor configured with the 2N3055 as a Darlington pair. As an alternative there's the PNP MJ2955 configured with an NPN driver transistor as a Szikali pair. Personally I think the supply on Kaysan tv would perform better than a single potentiometer transistor supply though may not go as high in voltage. Additional components such as zener diodes, driver transistors and extra pass transistors are required to improve overall performance of a supply such as mentioned earlier from this simple set up.
@@robertneill3057 The design's author was supposed to connect 4 H3 24V 70W bulbs to the output and prove by measuring the current his claim that the source would give 12A. The source will give 0.5A max. The author doesn't understand the weak current. Any adjustments are meaningless. You can't cool a transistor.
Ограничительный резистор 0.1 Ом не может пропустить ток более 5,5 A.
12 amps? This is joke😅
Si ma devi mettete un dissipatore grande un palmo