DC motors control

Hitec robotics including ROBONOVA humanoid, HSR-8498HB servos, MR C-3024 Controllers and RoboBasic
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5 postsPage 1 of 1

DC motors control

Post by joaocunha99 » Mon Dec 27, 2010 6:30 pm

Post by joaocunha99
Mon Dec 27, 2010 6:30 pm

I wanted to control DC motors (12V) with the MR-C3024 board.
Anyone know if it is possible and how can I assembly and programming RoboBasic.
Thanks.
I wanted to control DC motors (12V) with the MR-C3024 board.
Anyone know if it is possible and how can I assembly and programming RoboBasic.
Thanks.
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Post by i-Bot » Mon Dec 27, 2010 10:33 pm

Post by i-Bot
Mon Dec 27, 2010 10:33 pm

There are 3 PWM outputs on the C3024 which could be used to drive motors at variable speed. You would need an external high current bridge driver to handle the voltage and current of your motor. The PWM outputs are only low current 5V outputs. A bidirectional bridge would normally use two PWM outputs per motor, but you could use a digital output as the direction to one half of the bridge and PWM to the other half.
There are 3 PWM outputs on the C3024 which could be used to drive motors at variable speed. You would need an external high current bridge driver to handle the voltage and current of your motor. The PWM outputs are only low current 5V outputs. A bidirectional bridge would normally use two PWM outputs per motor, but you could use a digital output as the direction to one half of the bridge and PWM to the other half.
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Post by joaocunha99 » Mon Dec 27, 2010 11:10 pm

Post by joaocunha99
Mon Dec 27, 2010 11:10 pm

Thanks for the ideas.
I am familiar commands to servos and speed.
What is the digital control to control DC motors with a bridge H.
I've never used PWM on board. How to control speed and direction?
Thanks for the ideas.
I am familiar commands to servos and speed.
What is the digital control to control DC motors with a bridge H.
I've never used PWM on board. How to control speed and direction?
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Post by i-Bot » Mon Dec 27, 2010 11:24 pm

Post by i-Bot
Mon Dec 27, 2010 11:24 pm

This gives some background to H bridges an their control of DC motors.
http://www.mcmanis.com/chuck/robotics/tutorial/h-bridge/index.html

There are commands in Robobasic to control the PWM outputs.

With higher voltages and currents it is possible to damage the C3024 if you are not careful. As an alternative there are some DC motor controllers that can be driven with a servo signal nd operate like a continuous rotation servo.
This gives some background to H bridges an their control of DC motors.
http://www.mcmanis.com/chuck/robotics/tutorial/h-bridge/index.html

There are commands in Robobasic to control the PWM outputs.

With higher voltages and currents it is possible to damage the C3024 if you are not careful. As an alternative there are some DC motor controllers that can be driven with a servo signal nd operate like a continuous rotation servo.
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code

Post by joaocunha99 » Fri Feb 25, 2011 3:20 pm

Post by joaocunha99
Fri Feb 25, 2011 3:20 pm

The H bridge is made.

How to control the dc motors.
What are the codes to use?

Can anyone help.

Thanks.
The H bridge is made.

How to control the dc motors.
What are the codes to use?

Can anyone help.

Thanks.
joaocunha99 offline
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Posts: 4
Joined: Mon Dec 27, 2010 6:30 pm


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