Nice project!! Can you try to change The bipolar transistor with a z44n mosfet? I think that It Will reduce The Power losses. Sorry For my ugly English.
thanks GOD bless you... just ask about c1,c2 = 680uf but on schematic c1 is 680p and c2,c3 on output is 680uf >>> there is different btween write and name on schematic and you using only one capacitor on output project ... have ask about value for all capacitor ... thank you again
@@nunosousa2942, thanks for the quick answer :). My mind says the same, since it's being driven by just 3+ volts, it's difficult to put a mosfet, even a logic triggered one. I am wondering if maybe a darlington configuration of BJTs could improve a bit the efficiency? For example, one of my solar controllers is using step up converter with an efficiency of 74%. Indeed, that one uses mosfet for switching. Compliments for your great work!
sorry for the misunderstanding. In the fact i think there is mosfets with very low threshold voltage like 2v or so, but answering to your question, a darlington with is high current gain will just decrease the current sent out by the chip to the BJT and this may improve the efficiency but a very tiny bit due to less losses by joule effect in the chip
You're right, in fact the BJTs in the chip they are connected in darlington configuration and they are putting your around one amp safely. So the current for driving the power BJT is enough. You opened my eyes with the 2 volts mosfet, I didn't knew that exist. Again, thank you!
Hello , I am watching you close and I must say that this is a good Bulk Converter , One question though .... you have a diode probably a Zener somewhere in your circuit which do not show in your diagram ...can you try to elaborate us of it's absence !!!!!!!!!!!!!!!!!!
Better call it "inductor". The name "choke" is usually associated with it being a filtering component to block noise/high frequencies, not to store energy in a boost circuit.
You may also run into problems with Magnetic Saturation when using ferrite. So the required ferrite core may be bigger than the required iron powder core. Iron powder cores often have a yellow paint on them. Other than that it´s hard to tell them apart.
You said the standby (no load) current was less then 10mA yet your supply meter was showing 100mA, which is a pretty poor standby current.
what are the resistors to use if we just want a 5v output for a powerbakn, no trimmer. thanks
U can use fets for more powerr
help please, does is that the emitter of the transistor that goes to ground ??
Hi can you tell me please why it won't work if we use a ferrite ring ! thanks for the video !
Hey... can u make DC to DC high voltage circuit (450v) for coil gun?
Yes Even i want that Circuit
In circuit diagram there is no zener diode symbol but in the showed circuit there is a zener diode.why?
Nice project!! Can you try to change The bipolar transistor with a z44n mosfet? I think that It Will reduce The Power losses. Sorry For my ugly English.
thanks GOD bless you... just ask about c1,c2 = 680uf but on schematic c1 is 680p and c2,c3 on output is 680uf >>> there is different btween write and name on schematic and you using only one capacitor on output project ... have ask about value for all capacitor ... thank you again
How does one must count the pins of this IC for the DIP8 case - looking it from its upside,as for other ICs,or from its downside?
can use mosfet instead transistor ?
Excellent project 👍
Can u make boost converter 12v to 15v input and 12v stable output voltage
This circuit is amazing
That's a great piece of work, thanks! What about putting a darlington transistor? Could it increase the efficiency?
not tho mutch, the problem here is that is a BJT and not a MOSFET but i think the the lack of efficiency is not caused by the transistor that much
@@nunosousa2942, thanks for the quick answer :). My mind says the same, since it's being driven by just 3+ volts, it's difficult to put a mosfet, even a logic triggered one. I am wondering if maybe a darlington configuration of BJTs could improve a bit the efficiency? For example, one of my solar controllers is using step up converter with an efficiency of 74%. Indeed, that one uses mosfet for switching. Compliments for your great work!
sorry for the misunderstanding. In the fact i think there is mosfets with very low threshold voltage like 2v or so, but answering to your question, a darlington with is high current gain will just decrease the current sent out by the chip to the BJT and this may improve the efficiency but a very tiny bit due to less losses by joule effect in the chip
You're right, in fact the BJTs in the chip they are connected in darlington configuration and they are putting your around one amp safely. So the current for driving the power BJT is enough. You opened my eyes with the 2 volts mosfet, I didn't knew that exist. Again, thank you!
How to add variable output current feature for this circuit ?
Fantastic work, my friend! Really well done! 😊
Can it work with only one li-ion battery
yes
how much current can i pull from the output?
How much price in Pakistani Rupees
Best as always keep it up guys
I wonder, how I can protect this converter against short circuit.
Regards from México.
i think that the .22r resistor should do the work
Due to the wire size that can manage up to 3A
why not use mosfet?
Hello , I am watching you close and I must say that this is a good Bulk Converter , One question though .... you have a diode probably a Zener somewhere in your circuit which do not show in your diagram ...can you try to elaborate us of it's absence !!!!!!!!!!!!!!!!!!
Will I get an answer or not???
One question it couldn't get anymore current from it or the ic would burn up
what couldn't get anymore current?
great piece of work
I love Kasyan
nice
What is your diode number?
Касьян, красавчик, оказывается и в англоязычном сегменте шуршишь!!! Только сегодня наткнулся!!! А кто переводит?
I like this video
All of your posted links are in Russian with no translation option
Very useful 👍👍👍👍
I watch all your videos , I would like to correct the use of the word Throttle, the English word used in electronics is Choke.
Better call it "inductor". The name "choke" is usually associated with it being a filtering component to block noise/high frequencies, not to store energy in a boost circuit.
nice one
pleeeeeeeeez i need 35- 0 35+ 5a suplay
👍👏
Make 18650 1s 1p 30ah 18650 charger. Please that
Cheap and chip are two different things
Why wouldn't a ferrite core work? How do you tell them apart from Iron core?
Your explanations are shallow.
Ferrite core would work, but likely change the number of turns of wire needed.
Short answer, they didn't do enough testing.
You may also run into problems with Magnetic Saturation when using ferrite. So the required ferrite core may be bigger than the required iron powder core.
Iron powder cores often have a yellow paint on them. Other than that it´s hard to tell them apart.
DC to DC 12 v to 3v converter
LM 7800
@@PRABHATKUMAR-ww9izMerci Pour Réponse
yes
çok verimsiz :(
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Hello how are you
Good idea, I liked it, I hope you will get 5 cats, how much per price
Would you contact me on my email?