Subject:
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Re: RESEND--Re: Help with Power Scheme, Please...
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 15 Jan 1999 23:10:44 GMT
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Original-From:
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Andre Philippi <philippi@STOPSPAMearthlink.net>
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Viewed:
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1027 times
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Thank you for your help :)
Just one more questions, please...
How can I ground a mobile robot ?
Best regards,
Andre.
Will Bain wrote:
> The main problem I see is with how you label the voltages at various
> points in the circuit. If you have a 12 V battery, the low voltage end
> is usually called zero volts and the high voltage end is called +12
> volts (although the numbers are just relative to each other). You show
> -12 V at one end and +12 V at the other, which you could only get with a
> 24 V source (which wouldn't be appropriate). Perhaps the following
> would make more sense:
>
>
> +12V +---------------+
> +--------------------------------------------| Handy Board +------+
> | +----+-----+----+ |
> | +---------------------+ + 9V | | |
> +------+--| Diode String |----------------+ | | |
> | | +---------------------+ | + | |- |
> | + | +---------------------+ + 5V | +----+-----+----+ |
> +---+---+ +--| Diode String |--------------+ | | R/C DC Motors | • |
> | 12V | +---------------------+ | | +---------------+ • |
> |Battery| | | • |
> | 04A | | | +---------------+ • |
> +---+---+ | +--| Video Camera • |------+
> | | | +---------------+ |
> | 0V | | +---------------+ |
> +------+-----------------------------------+ | +--| Video Transm |------+
> | | | +---------------+ |
> ----- | | +---------------+ |
> --- Ground | +----| R/C Servos |------+
> - | +---------------+ |
> +-------------------------------+
=================================================================
Andre Philippi - Applications Developer | Phone: 626-296-5016
philippi@corp.earthlink.net | Fax: 626-296-5113
Earthlink Network, Inc. | 3100 New York Drive
http://www.earthlink.net | Pasadena, CA 91107
=================================================================
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Message has 1 Reply:
 | | Grounding robots
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| (...) By ground, I just meant the HB ground. The important thing is just that everything in an electronic system share the same ground; voltages are relative, and the ground is just the shared reference point--the point arbitrarily defined to be (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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