Constant Current Regulator using Transistors & TL431 | CCR | Constant Current Regulator.
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- เผยแพร่เมื่อ 10 พ.ค. 2024
- #foolishengineer #ConstantCurrentRegulator #TL431
0:00 Skip Intro
00:32 what is the current regulator
01:54 Current regulator application
02:08 Current regulator design
03:26 Current regulator using TL431
05:37 Current regulator example
07:11 Simulation of Current regulator
08:07 Advantages
08:27 Disadvantages
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Excellently explained the useful function of the TL431, and calculations involved with clear samples. Thank you very much!!! I have subscribed, and liked.
How you calcule R1=728 Ohms ?????? Because 8/((.05/50)+.001)= 8Volts/ 2mA= 4000 Ohms
Better to use opamp as feedback element for good current regulation and Low voltage drop.
Very informative video
Glad you think so!
Hi sir
Nice to explain but I have one question regarding R1 in previous vdo u had sujjest VBE (0.7÷0.05) ,,how u select resistor value
In ckt which value of v & i ,we have to consider when selecting the resistor.
NICE CONTENT.................... EVERYTHING IS COOL. THANK YOU
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The world's best teacher
Thank you so much for watching!! Please don't forget to subscribe to our channel
Very supportive 💓
Thank you so much, Glad you liked it!!
My friend simulation betiful.thanks👍👍
Thank you so much! Please show support to my video with Super thanks.
Поздравляем, ты смог прочитать документацию на TL431.
gud explanation keep it up sir 👍
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can it be used to drive 2A?
are we have TL431 analogs with low Vfb? I mean approximately Vfb 0.5 V...
Hi, i have a question, Does all three constant current regulator you upload here will reduce voltage receieved by load to achieve desired current? I want to keep the voltage same as input even when the load has less resistance and the current increases. Thank you
you need constant voltage regulator for that
Can it be used for 150 ma current
videos are very rich and full of content and good references as well. only hard to follow up with the narrator and possibly if you use any of those AI speak programs will make it a more versatile and huge viewer as well. hope no offense was taken and no doubt the channel admin is a very knowledgable person.
Thank you!
Thanks.how can two transistor behave current limiting and voltage control.bd139 &2n 3055 .2ndly can we give ur circuit feedback to base of powerful transistor as higher current limiting? Hope for more details thanks again
No. Yes
Can it be designed to drive 100 ma load
May Allah bless you
Thank you!
R1 should be 4k according to your calculation sir.
Your comment is true. R1= 8 / { ( IL / hfe)+İka} R1=8 / 0.002 = 4000R .If the current flowing through the Tl431 is 1 mA, this value will be 4000 ohms. But I think the friend meant 100 mA in the formula.
R1 should be 4k ohm according your calculation sir
there are some gain parameters for tl431 right. how you calculated
We don't need to calculate any gain parameters here, the TL431 is working as a comparator.
please please what happens if you replace the bjt with mosfet
you can use mosfet as well!
IS R1 IS4 KOHM?
If the current flowing through the Tl431 is 1 mA, this value will be 4000 ohms. But I think the friend meant 100 mA in the formula.
What is a current limiter?
the resistor which restricts the current flow
What else to tl431
It is a programmable shunt regulator (zener diode)