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View Full Version : Torque controlled motor or servo



timothyahong
06-23-2011, 10:15 AM
Hi all,

Im looking for a motor or continuous servo with torque control. I've looked around but haven't been been able to find any off the shelf products.

Thanks,
Timothy Ahong

iBot
06-23-2011, 03:11 PM
In the most simple case you can control the torque of a motor by adjusting the motor current. You can use any high current PWM driver to achieve this.

If you want closed loop torque control you need a motor or drive with some way to feedback the motor angular velocity into a simple control loop. There are quite a lot of motors available with tachometers, or use the derivative over time of an angular position sensor.