+Billy “stormlight” Steen Thanks

+skycarl Thanks

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+Radio wild Thanks

+Jason Wilson Thanks

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+Doug Mottern Thanks

+JL Software Yes the 15 votes is from the 12 V supply. The job of the voltage regulator is to take enough current from the input side and give it to the out put side, trying to maintain the 12 V output. The regulator does this by changing its internal resistance automatically.

Thank you.

It would be better to use your motorcycle manufacture part.

A diode changes AC into DC

It's a filter. I was trying to use a 12VDC wall wart to run some 12VDC flip-flop chips and a 555 timer. The wall wart put out 16 VDC which was too much voltage for the chips. Then I added just a 12VDC regulator and the chips did work but not reliably until I added an electrolytic capacitor on the output of the regulator.

So the DC source wasn't likely "smooth" enough coming from the wall wart?

Probably, I'm not sure because I was in a hurry to build the project, it was for work. I'll see if I can't duplicate part of the circuit and the problem, might make an interesting video.

Make a Voltage Regulator kzfaq.info/get/bejne/ruBdpJmpqNXKZIk.html

What voltage does your Bike put out and what do you need

In my volt meter reading from battery it reach 15 volts when.i rev but in ac i didnt measured it becoz i dont have multi tester

+Bruce Dobson If this would work, I think all the dumps would be burning.

I like that idea. One thing I was wondering about is where does the "extra" voltage go? Does it just turn into heat and dissipate into the air? If so, how do they do that with the tiny chargers for cell phones and tablets when they take it from 120v to 5v? Wouldn't that make for a lot of heat to dump? Maybe I don't really understand how voltage regulators work. Another thing I was wondering about is, in power supplies\chargers that use voltage regulators rather than step down\up transformers, do they still use power if they are left plugged in to mains but are not hooked up to load? These questions I didn't get answered while I was typing, but they are things I have been pondering.

Thank you. An excellent explanation. I appreciate it.

BRUCE DOBSON hi mate i know it's been a year, but let me address this for you in more detail 1. do you have the link to the video 2. in order to start a fire you obviously need a precise balance of - Fuel - Oxygen (not Air) - Ignition Source if you don't have these things in the right ratio's you CANNOT START A FIRE 3. can a battery be set alight or made to catch fire.... ANSWER = YES... but... only if you short circuit the battery. of course, if you short the battery , it heats up , the heat creates pressure and it explodes to release the pressure. but, this is not what you were saying, so let's leave short circuits out of it YOU ARE SAYING, can the fluid of the battery get into the water and make the water flammable well.. it depends on the fluid if it's electrolytic fluid from a Lithium Ion Battery... YES IT CAN, DEfinitely, Lithium will combust But AA's usually have Ni-MH and in this case i would say NO now. 4. considering what is needed to make a fire, i guess we could argue that the Lithium and water on it's own would not start a fire, but YOU DID SAY... HE SET IT ALIGHT so... the fire was already there in short mate it depends on the contents on the battery but, it's highly ulikely again.. to see the video would be very helpful

You use the regulators datasheet. Here is the NTE966 regulator datasheet. www.alliedelec.com/m/d/bce43bf0f256de4507a9edc9f8495dc5.pdf

Thank you, and your welcome.

Thanks

The right side is the circuit load changing it's resistance. As the load changes, the regulator keeps the output at 12VDC.

The mains-powered power supply has internal resistance at the output stage. When it says it is a 12v power supply, it means 'approximately' - it is probably just a transformer but without any power supply regulation other than a smoothing capacitor, so the 'no-load' voltage will be significantly higher than 12v. When a load is applied - such as the circuit being tested, the output voltage drops because of the internal resistance within the transformer. So even though the load is increasing, because he is adding more resistors in PARALLEL (not in series), the output of the voltage regulator is staying almost the same, but the lower resistance of the circuit means that the voltage drop across the internal resistance within the transformer of the mains power supply causes the output voltage of the mains power supply to drop.

That should work.

Ohm's Law, The Basics kzfaq.info/get/bejne/mplkYLl8yJjHqY0.html

When you add resistors in series (so they are in line rather than next to each other) then the total resistance is the total of all the resistors. But if they are parallel, (ie, next to each other, so the current is split between them all), the total resistance calculation changes and the overall resistance is less than the smallest one. Two 100 Ohm resistors in series - total resistance = 200 Ohms. Two 100 Ohm resistors in parallel, and the resistance is divided by two, = 50 Ohms overall. So the two 100 Ohm resistors in parallel (=50 Ohm), plus the 50 Ohm resistor in parallel (equivalent to two 50 Ohm resistors in parallel) = 25 Ohm

I get most of my parts from eBay

allamericanfiveradio@yahoo.com

You could use Zenor diodes or regular diodes. You might be able to use a variable voltage regulator. There's a couple of videos to give you some ideas. Zener Diodes, the Basics kzfaq.info/get/bejne/o6-pZJCUpprMoWQ.html Zener Diodes and Silicon Diodes kzfaq.info/get/bejne/rpyYosWivpbKh4U.html Adjustable Voltage Regulator kzfaq.info/get/bejne/aLqKjbtqq7WxnYE.html

Use an LM317 wired up like this: en.wikipedia.org/wiki/File:LM317_typical_schematic.svg Make sure RH has five times the resistance of RL.

Abdullah Raihan Bhuiyan use resistor or high resistance potansiometer

@@deadchords4919 " potansiometers" are banned by law where i live. :-)

@@taunteratwill1787 buy them from the black market then :)

What is the output of your solar panel batteries

12 volts

please i really need it

Are you wanting to regulate the voltage from the solar panels that charges the batteries?

yeah.. why??? is it not necessary to put a voltage regulator. to my project,,, and by the way my project is moving... ((actually a mini bicycle ))

How Capacitors charge and discharge kzfaq.info/get/bejne/d81ihdibtK7Vemw.html Capacitors, DC and AC Current kzfaq.info/get/bejne/hK-ep5SE2JnagWg.html PI filter, Resistor Choke Oscilloscope Demo kzfaq.info/get/bejne/jeCnlKuAm720c58.html

LM7812 Three lead voltage regulator work the same way, the main difference is the amount of current it can the voltage regulator can handle. The LM7812 can handle 1.5A.

Can I use it on a bike ?

How do you plan using it?