design change in communication

[N1c084]

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:

[stuartpittaway]

Hi. Are you planning to swap to a 3 pin connector for the comms ?

[N1c084]

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 ?

[stuartpittaway]

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.

Although - this chip needs 3V minimum to work (perhaps there is a similar device?)

[stuartpittaway]

What's the problem you are trying to solve with the higher comms speed?

[N1c084]

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 écrit :

What's the problem you are trying to solve with the higher comms speed?

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[stuartpittaway]

Ok. Are you really going to be working with +500VDC on this?

[N1c084]

This is the same , need 3 wires at output side.

Le dim. 6 nov. 2022 à 16:15, Stuart Pittaway @.***> a écrit :

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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[N1c084]

No 😅 11p 14s 48V 😀

Le dim. 6 nov. 2022 à 16:30, Stuart Pittaway @.***> a écrit :

Ok. Are you really going to be working with +500VDC on this?

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[stuartpittaway]

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.

VOH1016AD

This isn't really that different to the existing chip - EL3H7

The VCC and GND are just the connections to the cell module, and the output goes into the ATTINY chip.

[stuartpittaway]

or a chip like the Toshiba TLP2301 - this should be good for up to 1Mbps (although the ATTINY won't go that fast!)

[N1c084]

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 écrit :

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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[stuartpittaway]

The isolator is on the RX so can be on the modules, so only two wires needed, just like now.

[N1c084]

or a chip like the Toshiba TLP2301 - this should be good for up to 1Mbps (although the ATTINY won't go that fast!)

I will try with this chip, thanks There is no new hardware release that coming in the next 6 month? I just received a batch of attiny 841

[stuartpittaway]

Yes, I'm going to release a new module version using a different attiny chip, because the 841 is difficult to order.

[N1c084]

there is no functional change or new features?

[stuartpittaway]

No function changes, the new attiny has some hardware improvement