Voltage regulator tutorial & USB gadget charger circuit
This video covers the basics of linear voltage regulators - what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can be used to power USB powered gadgets. Don’t forget to subscribe! This video builds on material covered in my tutorial on building unregulated power supplies: www.youtube.com
Voltage regulator tutorial & USB gadget charger circuit
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@nickr753 Transformers, sir.
@milesbennet
You could do that… But over all the efficiency of the system would decrease; the heat(energy) lost through all three regulators combined would be greater that the heat lost through a single step, although each regulator’s individual temperature would be lower.
Hello! Can i do the opposite thing? amplifying a voltage of 1.2V to 1.5V with something as simple as this?
Wow easy really good explanation. Just a suggestion, instead of using that white board you could show connecting things with wires. I am a newbie when it comes to this so I don’t really know how that board works.
@Afrotechmods
If I put them 3 reg in series in this order: 12V, 9V, 5V (and joints in between) I could spread temperature over those 3 regs?
Thanks for excellent video!
Really gread vid presentation. I’m curious what cam are you using to record, am hoping its just as cheap as your v-regs, seriously what cam is that?
could someone help me out, this may be a stupid question but what dose ground on a dc circuit mean, when a schematic has a bunch of wires that go to “ground” do i just connect them to the negative end of the battery?
Maybe I misheard you, but if a 12 volt battery is fully discharged, how could be outputting 11 volts, shouldn’t it be 0 if it’s discharged?
Would it be possible to use this with a power supply that 5 volts and gives 7 Amps. Will the current be too strong for it?
I’m building a multiple phone charger. After a while when the phones battery is charged fully up, the voltage goes up a litle. After a while the voltage is so high that som of the phones stops charging because of a inbuildt security measure. I want to keep the voltage stable so this doesn’t happen.
does the voltage value of the capacitor matters? i’m planning on experimenting with this one but i don’t know what voltage value of the capacitor should i buy.
youtube needs more people like you
anyone knows a 9v 1amp voltage regulator?
i need a power source for 3 portable monitors, each consume 9volts/1amp and i was thinking of using a computer psu what do you think?
@MrSuperluminal Yup
If I’d want to build a combined 5-9-12V AC-to-DC converter, I could just put three appropriate regulators in series and draw the current at the regulator whose voltage I want, right?
What is the resin for the different type of cap at the end? Thanks for your videos
say that a regulator is 32 volts and the regulator drops it down to 5 volts. can you use the 32 volts or lower or do you have to use 32 volts or it has to be close to 32 volts.
Thanks! I gain understanding, Sir Jedi Master!
School systems need more people like you!
How can i get for more Current like 20A??
seriously stupid newb here. Im scavenging different electronic that i have around and pulling off voltage regs and mosfets with numbers ive googled them and somehow for me that doesnt allways make it clear to me what the BASIC properties are. Can you tell me how to use a multimeter to check out for the voltage output?
What is the voltage regulator they use with laptop adapter to get 19.3V ?
@Afrotechmods oh, i get it. Thank you!
Can i ask a question? It may be a stupid question, Can i reduce the voltage from 12 volt to 9 volt only with resistors?
@stevenliang96 Devices only draw as much current as they need to. The battery may be capable of supplying e.g. 500A, but if the gadget only draws 20mA, then the battery just supplies 20mA. There is no such thing as a high current battery, only a battery capable of delivering high amounts of current. (Although when speaking informally we would not always make the distinction). The car battery on the nipples thing in movies is BS.
you said by using a voltage regulator, we get a ’spitted out’ voltage of 5 volts even our powersource is a car battery. What if the current of the battery is too high? Or does current does’nt matter?
@nickr753
RC Filter Regulator
google wiki/File:RC_Filter