Author Topic: DC Motor Amplifier  (Read 3867 times)

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Offline GarrettTopic starter

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DC Motor Amplifier
« on: December 18, 2006, 05:49:47 PM »
I work for a company that makes motion control products.  I was wondering if anyone needs a DC motor power amplifier for driving motors at 100A continuous current at up to 30V.  This "amplifier" would accept motor control commands from a serial port connection, an R/C receiver output, or from an H-Bridge output for driving a much smaller motor.  Power is supplied by an external high-power source connection (12V car batteries, etc).  I was thinking we should add something like this to our existing product line if there is enough interest.  I know I am interested - is anyone else?  The device would probably be in the mid $100 range.  No fans or moving parts, probably around 4"X3"X2" in size.

Thanks,

Garrett

Offline Admin

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Re: DC Motor Amplifier
« Reply #1 on: December 18, 2006, 06:17:48 PM »
The current and voltage range is way above what is typical for hobbyist projects, but this would be good marketed towards Battlebot type robots . . .

The fact that it is solid state, medium sized, and has a good price I think you have something there . . . I would use the RC input . . .

A dual version (for two motors) might be better? 95% of the time I need a motor driver, I need it for two motors . . .

This would be a good place to check out what is currently available on the market:
http://www.robotmarketplace.com/marketplace_speedcontrollers.html
You should call and ask them which products are selling really well . . .

Offline GarrettTopic starter

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Re: DC Motor Amplifier
« Reply #2 on: December 19, 2006, 06:39:46 PM »
Thanks for the suggestions.  I will also search through the Battlebot forums.

Garrett

Offline boney

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Re: DC Motor Amplifier
« Reply #3 on: January 02, 2007, 12:28:16 AM »
I would suggest going in for H-bridge circuits for high current applications.

As they are much more rugged than IC based controls.

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Re: DC Motor Amplifier
« Reply #4 on: January 17, 2007, 02:59:13 PM »
It just occurred to me today that there is probably a high demand for waterproof motor drivers, for applications like UUV's and off-road/military robotic vehicles.

No one is currently making them . . .

Offline GarrettTopic starter

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Re: DC Motor Amplifier
« Reply #5 on: January 30, 2007, 11:49:34 AM »
Thanks for the idea.  I will think some more about applying this to applications in harsh environments.

 


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