# High current in a parallel circuits

I have designed a circuit which powers up multiple components or electric modules from a source voltage of 12V. This circuit powers 1 micro controller (PSOC 5LP, rated voltage 12V), 3 stepper motors (rated voltage 12V, current 1A), 2 Servos (rated max voltage 6V), a laser module (rated 12V and required current of 2A) and a few LEDs and IR modules (rated voltage 5V). All these components are connected in a parallel network. The LED modules are supplied with regulated 5V from the source 12V. Now my question is, since all the components other than the laser require less than 2A of current, will supplying a maximum current of 2A and 12V form the source to this parallel network damage my circuitry and other components like the micro controllers or other LED modules?

Thank you so much, cheers

• The load takes what current it requires. If you supply a constant 12V you can't dictate the load current because the load is a resistor and obeys I = V/R. So a 10,000 amp supply at 12V connected to a 12 ohm resistor supplies only 1 amp. – Andy aka Sep 16 '15 at 17:52