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how i can reduce output current? Answered

i have SMPS  with output ratingd 24v dc and 5A.  The other one is 12v dc motor which has max input current is 200ma with load.  How i can connect these both itoms?

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-max-
-max-

5 years ago

Voltage is like electrical pressure. The more V the power supply has, the more amps it can push into a given load.

Current is like flow rate. The more I that your power supply is capable of, the more it electrons it can push around. But it will not push this current around if the V is not high enough or R is not low enough.

Resistance is exactly what it sounds like. It is how much the load resists current flow. The greater the R is, the higher the V needs to be to push the amps.

Power is basically nothing more that the product of voltage and current.

Mathematically, this is all just basic ohm's law. E = IR or with units: V= A*Ω.

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seandogue
seandogue

5 years ago

V = I x R rulez all.

As Rick said, current is not pushed, it is drawn based on the load resistance (or impedance more accurately) and the source voltage.

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rickharris
rickharris

5 years ago

The DC motor will only draw the current it is rated for - no need to reduce anything.

Current is not Pushed into something, it is drawn from the available supply.