 | | Re: RCX Currnet Rating?: And info on Internals??
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Kekoa, Many Thanks for your tireless digging. I have seen a lot of very interesting stuff you have unearthed. I think that more is often learned about Engineering by 'Reverse Engineering' than 'forward'! Years ago I used to get tons of old IBM (...) (27 years ago, 12-Sep-99, to lugnet.robotics.rcx)
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| | Re: RCX Currnet Rating?: And info on Internals??
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(...) It is commonly believed that the RCX contains a full rectifier, so if you supplied AC, that would work, but more importantly, if you supplied either polarity of DC, that would work also. The conversion to AC also requires a sufficiently large (...) (27 years ago, 12-Sep-99, to lugnet.robotics.rcx)
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| | Re: RCX Currnet Rating?: And info on Internals??
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I'm still not clear on exactly what the RCX enternal-power input will accept. Can anyone tell us what the internals really are?? If I view the RCX power connector closely, I read: 9-12V~ (nine dash one two Vee tilde) I would interpret that to mean: (...) (27 years ago, 12-Sep-99, to lugnet.robotics.rcx)
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| | RE: Help with connecting pyroelectric sensor
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(...) I read the sheet as saying the MINIMUM load is 125K, and the block diagram indicates a buffered output. It would be a good idea to buffer the output, but may not be strictly necessary. The bit about the reference being 20uA capable is correct, (...) (27 years ago, 8-Sep-99, to lugnet.robotics.rcx)
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| | RE: Help with connecting pyroelectric sensor
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Here's the link to the pyro sensor (URL) The schematic indicates that the reference moves relative to the output... I think the reference and output terminals are mislabelled. Given that they are mislabelled... The reference output has a 20uA max (...) (27 years ago, 7-Sep-99, to lugnet.robotics.rcx)
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