12v reverse speed control circuit diagram

In summary, the person is seeking help in controlling the speed and direction of a 9v motor (capable of running up to 24v) using a dual-potentiometer. They are looking for a circuit diagram and this is their first time building a circuit. The suggested solution is to use a National Semiconductor LMD-18200 full H-bridge, which offers full 3-amp 24-volt forward-reverse pulse width modulation with braking. The person is also advised to provide more information about the motor rating.
  • #1
terencep
2
0
Hi

I have a 9v motor (can run to 24v). I need to control the speed of the motor and reverse the direction. I also wanted to control it with a duel-potentiometer, but i can't seem to find any way to do this. can someone help with a circuit diagram please?
(This is my first time building a circuit so any help you can offer please)

Thanks
Terence
 
Engineering news on Phys.org
  • #2
This shows a circuit that looks like what you need.

http://www.dprg.org/tutorials/2005-11a/index.html Note that the output is taken from pin 7 which is unusual but OK in this circuit. Pin 3 is normally the output of a 555.
That would give you variable speed and you would need a Double pole double throw switch to change the polarity of the voltage getting to the motor to reverse its direction.

100px-Crossover-switch-symbol.svg.png


The motor would be on the right and the input voltage on the left in this diagram.
 
Last edited by a moderator:
  • #3
This National Semiconductor LMD-18200 full H-bridge offers full 3-amp 24-volt forward-reverse pulse width modulation w/braking.You can probably use the PWM to control different motor speeds in forward and reverse. You can also do it with diodes and pots on the output.
http://acroname.com/robotics/parts/R27-18200.pdf
Tell us more about the motor rating.
 
Last edited by a moderator:
  • #4
Thanks for the help.
 

Related to 12v reverse speed control circuit diagram

1. What is a 12v reverse speed control circuit diagram?

A 12v reverse speed control circuit diagram is a schematic representation of the electrical components and connections used to control the speed of a motor in a reverse direction. It typically includes a power source, a switch, a motor, and various resistors or transistors to regulate the voltage and current flow.

2. How does a 12v reverse speed control circuit work?

A 12v reverse speed control circuit works by adjusting the voltage and current supplied to a motor, which in turn controls its speed. The circuit uses a switch to change the direction of the current flow, allowing the motor to run in reverse, and resistors or transistors to regulate the voltage and current to achieve the desired speed.

3. What are the benefits of using a 12v reverse speed control circuit?

Using a 12v reverse speed control circuit allows for precise control of the speed of a motor in a reverse direction. This can be useful in various applications such as robotics, electric vehicles, and industrial machinery. It also helps to protect the motor from damage by regulating the voltage and current.

4. What components are typically included in a 12v reverse speed control circuit diagram?

A 12v reverse speed control circuit diagram typically includes a power source, a switch, a motor, and various resistors or transistors to regulate the voltage and current. Additional components such as capacitors, diodes, and potentiometers may also be included depending on the specific circuit design.

5. Are there any safety considerations when working with a 12v reverse speed control circuit?

Yes, there are some safety considerations to keep in mind when working with a 12v reverse speed control circuit. It is important to follow proper wiring and grounding techniques to avoid electric shocks. Additionally, it is important to use appropriate components and ensure that the circuit is properly insulated to prevent short circuits or other hazards.

Similar threads

Can I control a two-speed fan motor with a two-way light wall switch?
    • Electrical Engineering
Replies
17
Views
730
Controlling motor speed digitally
    • Electrical Engineering
Replies
11
Views
976
Electric motor torque control based on speed interaction/instability
    • Electrical Engineering
Replies
3
Views
867
How to make an Electrical Diagram with added Steinmetz Circuit for a Delta 3 phase motor?
    • Electrical Engineering
Replies
0
Views
155
Wheelchair motor, "Skid Steer" style control
    • Electrical Engineering
Replies
1
Views
2K
Directional actuator control circuit
    • Electrical Engineering
2
Replies
38
Views
3K
I want a temperature controller for a 12V, 40W ceramic cartridge heater
    • Electrical Engineering
Replies
14
Views
3K
Asymmetrical grounding of a 3 phase motor being run on a 1 phase supply
    • Electrical Engineering
Replies
7
Views
1K
Window fan: Bypassing thermostat with a button
    • Electrical Engineering
Replies
2
Views
517
High Current 12V DC motor speed control
    • Electrical Engineering
Replies
6
Views
2K

Hot Threads

Recent Insights

Back
Top