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Simple direct current regulator circuits

964 ratings | 42421 views
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Text Comments (38)
jankalode (2 months ago)
could you please explain how LM358 schematic works? It is not functioning as in video, inputs 2 and 3 have different voltage and it is not changing by potentiometer. And mosfet is open. Always.
Anon Rider (2 months ago)
What transistors should i use if i want the voltage be up to 50V
Pioneer (4 months ago)
Is it possible to use a potentiometer on lm317 circuit? It would make a good current regulator for a variable bench power supply.
Archangel Dumo (4 months ago)
what if the input voltage is 220Vdc and the current that i need is 1amp can you help me. for the components needed to change thankyou!
normal think Ponnala (5 months ago)
good explained
timmy 900 (5 months ago)
Good video
Hasem Ali (6 months ago)
this is not understandable
Shebeeb my heart (7 months ago)
Please post variable frequency controller for power motors
ariel gonzales (10 months ago)
don't work number one in proteus hmm...
can i replace power transistor with mosfets
MegaInformazione (1 year ago)
filament bulb in 2018?
Amir Abdurraman (1 year ago)
The circuit is very good, but it would be better with a current limit indicator ... Maybe a led indicator
electro magic (1 year ago)
like
Balan Bogdan (1 year ago)
Thank you!
Zahid Shah (1 year ago)
Why do your pcbs resemble like the ones in 1980s
Browarus Pierogus (1 year ago)
Yeah those boards are good for driver circuits but if you deal with currents 20A+ those PCBs are fried (thin copper tracks). Whole art is laying out those power elements.
Big like 👍 👍 👍
Philip Gevaert (1 year ago)
Interesting video that refreshed some of my forgotten knowledge...
M.Palani samy (1 year ago)
Reply me
M.Palani samy (1 year ago)
Sister u have make an usb killer previously can u sam me the small little transformer calculations 😊😄
B.G.B Voice (1 year ago)
I love you guys
Upcycle Electronics (1 year ago)
Ha! I just realized I can use the unused half of the LM358 op amp on a cheap VC288 Volt/Current meter to create an adjustable current limit.
Mr IMBUS (1 year ago)
Awesome video i Like it 👌♥️👍👌😀👌♥️
Atomic t c g (1 year ago)
How calculate rx value
Rx=1.2/I
alyo / (1 year ago)
pls can you make an video modyfijing that kit from chine at 0:34
Necois Idois (1 year ago)
Thank you..
Gordon Lawrence (1 year ago)
Zenner diodes if used for very precise control voltages should have a 100nFceramic capacitor in parallel to eliminate some of the zenner noise. Zenner noise is worse at low current and a zenner should never be used at less than 10% of it's rated working current (this would cause voltage tolerance issues too). Also R1 in the transistor only current regulator should be selected to have approximately 5% of the current flow of that required by the whole circuit - this is because the hfe of a medium power transistor is rarely over 50 (sometimes as low as 20) for medium currents (a bit more at low current) and by medium current I mean medium with reference to that particular transistor. EG a medium current for a 5A part would be 500mA. Low current would be 50mA and high current would be 1A+.
Philip Gevaert (1 year ago)
Interesting and usefull reply ! Thnxs !
Kpomal productions (1 year ago)
Pls can you make a sine wave inverter
MC's Creations (1 year ago)
Really nice! 😊
Ismail Dadang (1 year ago)
Mantap gan.
Roberto S. Chiandotti (1 year ago)
Ty for the tip, I will enjoy it in my project ;)
Ghanraj singh (1 year ago)
alwayas good
Cliff Matthews (1 year ago)
Oops! On 3 transistors you say, resistors are added to the emitter circuit, but show 0.22ohm resistors on the collectors..
Mohit Sorout (1 year ago)
Amazing explanation as always, and effective deasine
Alfian Oktafireza (1 year ago)
Very nice
kadirhan yavlak (1 year ago)
hi

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