How to reverse the action of a small 12V DC MOtor

In summary, the individual is seeking advice on a personal project involving a 12V DC motor and is looking for a tool or device that can reverse its direction and control its speed. They mention the possibility of using a switch or relay to change the direction, and suggest using a PWM circuit for speed control. The type of rheostat needed for the project depends on the size of the motor. Other suggestions for motor control include a PWM chip or a 555 timer.
  • #1
ja7703a
1
0
Hey Guys !
I am working on a personal project, and I was hoping you could give me some help and advices.
I am looking for a tool/device that would reverse the action of a small 12V DC motor (make it operate clockwise and then counter-clockwise for example).
And I was also wondering what kind of rheostat use in order to control its speed.
Thank you in advance !
 
Engineering news on Phys.org
  • #2
You'd have to check the information on your motor to make sure, but typically, direction is changed by changing the direction of current flow through the motor. To do this, the wires need to be flipped. A simple way to do this is by either a switch or by a relay (DPDT in either case).

Speed control for these motors is also typically done through a PWM circuit.
 
  • #3
  • #4
For a small motor controller look at the L298 H-bridge chip. It can run two 2amp motors, bidirectionally, and takes a pulse-width and a direction signal as input. You can generate the pulse-width signal with a 555 timer or, if you want to get fancy, a micro-controller.
 

Related to How to reverse the action of a small 12V DC MOtor

1. How can I reverse the direction of a small 12V DC motor?

To reverse the direction of a small 12V DC motor, you will need to switch the polarity of the power supply. This can be done by either physically swapping the wires that connect the motor to the power source, or by using a motor controller that allows you to change the direction of the current flow.

2. Can I use a simple switch to reverse the action of a small 12V DC motor?

No, a simple switch will not be able to reverse the direction of a 12V DC motor. This is because a switch can only break or make a circuit, not change the direction of the current flow. You will need a motor controller or a more complex circuit to reverse the direction of the motor.

3. What is a motor controller and how does it work?

A motor controller is an electronic device that allows you to control the speed and direction of a motor. It works by receiving signals from a control source, such as a switch or microcontroller, and using these signals to vary the voltage and current supplied to the motor. This allows you to change the direction of the motor and control its speed.

4. Are there any risks involved in reversing the action of a small 12V DC motor?

Yes, there are potential risks involved in reversing the action of a small 12V DC motor. This includes the possibility of electrical shock, short circuits, and damage to the motor or other components. It is important to follow proper safety precautions and have a good understanding of electronics before attempting to reverse the direction of a motor.

5. Can I use a motor controller to reverse the action of any small DC motor?

Not all small DC motors can be reversed using a motor controller. It depends on the type of motor and its wiring configuration. Some small DC motors, such as brushed motors, can be easily reversed using a motor controller. However, other types of motors, like stepper motors, require more complex control methods to reverse their direction. It is important to check the specifications of your motor and choose a compatible motor controller.

Similar threads

What is the best DC motor for spinning a vortex impeller at 3000 rpm?
    • Electrical Engineering
Replies
2
Views
1K
Electromagnet Polarity Switching for Reversed Motion
    • Electrical Engineering
Replies
7
Views
920
Controlling motor speed digitally
    • Electrical Engineering
Replies
11
Views
990
High Current 12V DC motor speed control
    • Electrical Engineering
Replies
6
Views
2K
Wheelchair motor, "Skid Steer" style control
    • Electrical Engineering
Replies
1
Views
2K
Troubleshooting 12v DC Motor for Final Year Project Prototypes
    • New Member Introductions
Replies
1
Views
53
Running Two Brushed 12V DC Motors
    • Electrical Engineering
Replies
24
Views
2K
Small DC motor run by a super capacitor - Is it possible?
    • Electrical Engineering
Replies
18
Views
10K
Have 12v AC, converted to 12v DC, motor slow
    • Electrical Engineering
2
Replies
68
Views
14K
What does this DC motor supply do?
    • Electrical Engineering
Replies
9
Views
1K

Hot Threads

Recent Insights

Back
Top