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Opto isolated
- To: "Ukha_d" <ukha_d@xxxxxxx>
- Subject: Opto isolated
- From: "Ian B" <Ian@xxxxxxx>
- Date: Sat, 8 Dec 2001 08:25:30 -0000
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
An opto-isolator is an electrical connection that is not made by physical
wires. The chips I have been looking at behave in a similar fashion to
relays. There is a trigger line and two contacts that make when a power is
applied to the trigger. Inside the chip there is an IR LED and photodiode
that do job of the coil on a normal relay. No physical wires make it good
at
insulating against silly currents. If my understanding is in any way wrong
or incomplete please shout as I am still learning here. There is also
probably lots of different levels of isolation but I only looked at the one
chip type from Rapid.
Ian
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