Subject:
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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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Thu, 14 Jan 1999 23:01:45 GMT
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Original-From:
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Andre Philippi <PHILIPPI@EARTHLINK.saynotospamNET>
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Viewed:
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817 times
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Hi Everybody,
I'm trying to hook-up the Handy Board, an R/C car chassis, and a wireless camera
together, and here's what I was planning to do about the power...
+---------------+
+--------------------------------------------| Handy Board +------+
| +12v +----+-----+----+ |
| +---------------------+ | | |
+------+--| 1N4001 Diode String |----------------+ | | |
| | +---------------------+ +09v | + | | - |
| + | +---------------------+ | +----+-----+----+ |
+---+---+ +--| 1N4001 Diode String |--------------+ | | R/C DC Motors | |
| 12V | +---------------------+ +05v | | +---------------+ |
|Battery| | | |
| 04A | +---------------------+ -05v | | +---------------+ |
+---+---+ +--| 1N4001 Diode String |------------+ | +--| Video Camera |----+ |
| | +---------------------+ | | | +---------------+ | |
| | +---------------------+ -09v | | | +---------------+ | |
+------+--| 1N4001 Diode String |----------+ | | +--| Video Transm |----+ |
| +---------------------+ | | | +---------------+ | |
| -12v | | | +---------------+ | |
+---------------------------------+ | | +----| R/C Servos |--+ | |
| | | +---------------+ | | |
| | +-------------------------+ | |
| +-----------------------------+ |
+---------------------------------+
1 - Is the whole thing correct, from an EE stand point ?
2 - Is there a problem in having a battery with far more Amps than necessary?
3 - Could a battery with high Amperage "push" too much current ?
4 - Could the R/C DC motors draw too much current and "harm " the HB ?
5 - What kind of dynamo/combustion motor (r/c) size, combination would be
necessary to feed a 12v in/out battery recharger (with auto trickle charge)?
Thank you in advance,
Andre Philippi.
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Message has 1 Reply:
 | | Re: Help with Power Scheme, Please...
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| 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 (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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