How i can regulate amperage? What electronic pieces i have to use?

I have a power source tha gives 24v and 10amps. How i can regulate the amperage to 1A even lowering the voltage? (ideal would be 12v and 1a, but i dont really care about voltage).  thank you for your help :)

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KrysS15 months ago

Hello, sorry to intervene. I would like to know how to regulate, 12V 50A to 12V, 10A. If power is more than 10A, the circuitry should regulate it so it doesn't go over the 10A. So basically, not just 50A, it can be any amperage above 10A.

Please help.

iceng KrysS15 months ago

You have read the other answers without understanding what they say...

Do you know a 10 amp current limit will lower the voltage... Make the voltage go down when the 10 A limit is exceeded !!

KrysS1 iceng5 months ago

There must be a way to lower current, but not voltage :/

iceng KrysS15 months ago

Go ahead... Ignore Ohms Law, but read the other answers for the truth of it.

As Rickharris said "I think your misunderstanding how electricity works.

Your product will draw whatever current it needs up to the maximum the power supply can give. This is provided the voltage is set correctly."

Power supplies don't push out amperage. They are rated to be able to supply a certain amount of amperage. Your device then pulls what it needs with a few exception. LEDs being the main exception as they will continue to pull more amperage till they burn out.

What are you using this supply for?

Thank you for your answer! Im using this supply to run a flyback driver (and it works fine) but I wanted to add a cooling fan (1a) and i belived that it could burn with too much current. Well, as i can read here the problem doesn't exist, right?

Shouldn't be an issue. But what kind of fan are you using. All you need is a basic PC fan for cooling and it shouldn't draw 1A.

rickharris3 years ago

I think your misunderstanding how electricity works.

Your product will draw whatever current it needs up to the maximum the power supply can give.

This is provided the voltage is set correctly.

So you need to be able to control the voltage for 99% of applications

LEDs are an exception where the current needs controlling and for this you can use a resistor.

Peris The Majestic (author)  rickharris3 years ago

Yeah, i'm quite ignorant about this stuff, thanks a lot for all suggestions!

These are voltage regulators use to control current.

Is this what you are looking for?

Joe

2 Amp.gif78xx Current Regulating.bmpanswer 2.bmpAnswer.png
Pazzerz3 years ago

Try this, read up on the input voltages to the three ICs suggested.

1-Amp-Current-Regulator-Scheamtic.png