Subject:
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Re: RCX sensor interfaces - diodes
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Fri, 28 Sep 2001 15:12:59 GMT
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Viewed:
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1594 times
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The main advantage of the BAT85 is the lower voltage drop (about 0.3 Volt
against 0.7 Volt for the 1N4148).
Chris Page wrote:
> I'm in the middle or working out the circuit for my gray encoder sensor and
> looking at the various interface schemes. I notice that most examples use
> 1N4148 diodes, but one site I have visited (but I can't for the life of me
> remember which :/) recommended BAT85 (Schottky barrier diodes) because they
> "are more linear."
>
> Does anyone have any advice or opinion on this?
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Message has 1 Reply:
 | | Re: RCX sensor interfaces - diodes
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| I think the real point here is that it is usually necessary to incorporate a bridge network of six diodes to interface to the RCX sensor inputs. The signalling current must pass through at least two series diodes to get to the RCX terminals - a (...) (23 years ago, 28-Sep-01, to lugnet.robotics.rcx)
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Message is in Reply To:
| | RCX sensor interfaces - diodes
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| I'm in the middle or working out the circuit for my gray encoder sensor and looking at the various interface schemes. I notice that most examples use 1N4148 diodes, but one site I have visited (but I can't for the life of me remember which :/) (...) (23 years ago, 28-Sep-01, to lugnet.robotics.rcx)
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