Multi-pin collecting device
Multi-pin collecting device
(OP)
I'm looking for some sort of device that has about 60+ pins. The pins would sense current, and the device would output some other marker on a single channel. Voltage would work nicely. So, say a current comes in on pin 1, the device would output 1V. A current comes in on pin 2, it would output 2V, etc. Does anyone know if something like that exists?





RE: Multi-pin collecting device
TTFN
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RE: Multi-pin collecting device
RE: Multi-pin collecting device
RE: Multi-pin collecting device
RE: Multi-pin collecting device
* The input current magnitude is fixed and known.
* Only one input is active at once
Something like the attachment.
http://files.engineering.com/getfile.aspx?folder=8...
If you want a more flexible input, I'd be looking at a digital solution with a multiplexer on the input. A counter would cycle through each of the multiplexer inputs and a latch would output the counter state when current is detected on a multiplexer input.
RE: Multi-pin collecting device
RE: Multi-pin collecting device
> Are more that one input active at any time?
> How long are they active?
> How long are they inactive?
> What level of current?
> Is it really a current, or is it a voltage?
TTFN
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RE: Multi-pin collecting device
The inputs are all active, and the signal that I want converted would be a half-second period of inactivity, from some percentage of the inputs. The percentage would change with every signal, though if the inputs are ordered sequentially, the system could work by identifying the highest deactivated input, and then outputting the binary number assigned to that input. The circuit isn't finalized yet, so the signal could be a voltage or current, though I'm currently leaning towards current.
After speaking to a friend, I think that 64 NAND gates and 2 8-to-3 digital encoders might work. Once I study the data sheets I should be able to hammer out a few more specifics.
Sorry again for the poorly presented problem. My experience with circuit analysis is limited to a year of university classes analyzing existing circuits, not designing them. If anyone has better ideas, or even criticisms of the current plan, I'd love to hear them. And if anyone is curious about any other specifics regarding the circuit I'll try my best to answer them.
Thanks!
RE: Multi-pin collecting device
TTFN
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