Subject:
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Re: High current speed controllers
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 8 Dec 1997 11:49:14 GMT
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Original-From:
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Bruce Moore <bamoore@bloomington!IHateSpam!.in.us>
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Viewed:
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873 times
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Thomas,
We are using the HB to control an AstroFligt 50A controller. The
controller comes standard with a 20K pot to vary the PWM signal. What I
did as substitute the 20K pot with a DallasSimi DS1803 pot. Its a 14
(I think) dip package that uses I2C to vary a pair of 50K pots on the
chip. Works great.
Details are available. Yours for the asking.
On Sat, 6 Dec 1997, Thomas Vanselow wrote:
> Hello,
>
> I was wondering if anyone could recommend a speed controller circuit for controlling a 12VDC motor which could draw up to 25A. I'd like to use the Handy Board to control its speed.
>
> Cost is not a big concern but compactness is. I would consider using a commercial speed controller if I could find one with the foot print about 3"x3". I've found many speed controllers at the Tower Hobbies web page, but I am not sure what sort of input these controllers require. Has anyone ever interfaced the Handy board to a commercial speed controller? It looks like these units are designed to connect up with RC radio equipment.
>
> Also, can anyone speak to the pros and cons of digital control verse analog? I seem like many of the speed controllers use PWM techniques for motor speed control. My application is not really high tech, so I was considering a simply power transistor circuit. Any thoughts?
>
>
> Thanks
>
> Tom
>
>
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Message is in Reply To:
 | | High current speed controllers
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| Hello, I was wondering if anyone could recommend a speed controller circuit for controlling a 12VDC motor which could draw up to 25A. I'd like to use the Handy Board to control its speed. Cost is not a big concern but compactness is. I would (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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