Powersing Two 12V Motors: A Complete Guide

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SUMMARY

This discussion clarifies how to power two 12V motors. If the motors are wired separately, each requires its own 12V power supply. When wired in parallel, a single 12V supply can power both motors. However, if the motors are wired in series, a 24V supply is necessary, provided they draw similar currents at 12V. Wiring them in series with differing current draws is not advisable.

PREREQUISITES
  • Understanding of electrical wiring configurations (series and parallel)
  • Basic knowledge of voltage and current concepts
  • Familiarity with power supply specifications
  • Awareness of motor specifications and current requirements
NEXT STEPS
  • Research how to wire motors in series and parallel configurations
  • Learn about power supply ratings and their impact on motor performance
  • Explore the implications of current draw differences in motor wiring
  • Investigate the use of voltage regulators for motor applications
USEFUL FOR

This discussion is beneficial for hobbyists, electrical engineers, and anyone involved in robotics or DIY electronics projects that require powering multiple motors.

Jones1987
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Hi, new to the whole electrical side of things, have never been good with voltages, currents or resistance etc. So I apologise for any simple questions.

So if I have two 12v motors, does this mean I have to include two 12v (or one 24v) supplies? Or somehow does a 12v supply power both of them just at a lower voltage?

Thanks.
 
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Jones1987 said:
Hi, new to the whole electrical side of things, have never been good with voltages, currents or resistance etc. So I apologise for any simple questions.

So if I have two 12v motors, does this mean I have to include two 12v (or one 24v) supplies? Or somehow does a 12v supply power both of them just at a lower voltage?

Thanks.

If they are wired separately, they will require two 12v supplies.
If they are wired in parallel, they will require one 12v supply.
If they are wired in series, they will require one 24v supply.
 


OmCheeto said:
.
.
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If they are wired in series, they will require one 24v supply.
. . . as long as they draw (close to) the same current at 12V. If not, then do not wire them in series.
 

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