In message <[email protected]>, jimlux writes: >Bob Camp wrote:
>There are some nice solutions, though, using USB directly, which has the >advantage of providing a few watts of power. Isolated DC/DC converters >are readily available. you might be able to do transformer isolation of >the two data wires. First: you want to use capacitors, not transformers. Second: it is surprisingly tricky to get to work in practice, I have only ever seen one device that managed to do so, and comply with the USB standard, and the designer swore to never do it again. People generally default to a small USB-enabled microcontroller with an optocoupler to the real stuff. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [email protected] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
