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design change in communication #127
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Hi. Are you planning to swap to a 3 pin connector for the comms ? |
Hi yes it is , I will made pcb with 14s and the wire will be between contrôler and 14s pcb > Hi. Are you planning to swap to a 3 pin connector for the comms ? |
How about using something like VOH1016AD ? That is almost a drop in replacement for the existing chip. Wouldn't need to change connector then either. Although - this chip needs 3V minimum to work (perhaps there is a similar device?) |
What's the problem you are trying to solve with the higher comms speed? |
Needs to drive 154 modules in one system
So I want to be the more efficient and secure with com.
This optocoupler support high speed compare to the actual
Le dim. 6 nov. 2022 à 16:17, Stuart Pittaway ***@***.***> a
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… What's the problem you are trying to solve with the higher comms speed?
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Ok. Are you really going to be working with +500VDC on this? |
This is the same , need 3 wires at output side.
Le dim. 6 nov. 2022 à 16:15, Stuart Pittaway ***@***.***> a
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… How about using something like VOH1016AD ?
https://www.mouser.co.uk/ProductDetail/Vishay-Semiconductors/VOH1016AD?qs=PqoDHHvF648sjq9xbZMnUg%3D%3D
That is almost a drop in replacement for the existing chip. Wouldn't need
to change connector then either.
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No 😅 11p 14s 48V 😀
Le dim. 6 nov. 2022 à 16:30, Stuart Pittaway ***@***.***> a
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… Ok. Are you really going to be working with +500VDC on this?
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or a chip like the Toshiba TLP2301 - this should be good for up to 1Mbps (although the ATTINY won't go that fast!) |
Because all voltage need to come from the other board the stay isolated
from the board , ground /vcc / output from second board
Le dim. 6 nov. 2022 à 16:33, Stuart Pittaway ***@***.***> a
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… That's a relief!!
Why do you need 3 wires?
A module is just driving the anode and cathode of the chip in the next
module along the chain.
[image: image]
<https://user-images.githubusercontent.com/1201909/200179785-d5c3b13c-b666-4001-914d-04015cccf8b6.png>
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The isolator is on the RX so can be on the modules, so only two wires needed, just like now. |
I will try with this chip, thanks |
Yes, I'm going to release a new module version using a different attiny chip, because the 841 is difficult to order. |
there is no functional change or new features? |
No function changes, the new attiny has some hardware improvement |
hi ,
what do you think about these mod to be able to have a better reliability and capacity in comm ?
VSS is the voltage from the other module, requested by the new opte 6N137
Module v440:
Contrôler:
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