At 09:01 AM 3/15/2004 -0500, you wrote:

(correction to Note 3)

>         Method A will also cause the protection diodes on the PIC
>         to conduct maybe 2mA peak.

Change to "can cause protection diodes to conduct..."

(Never tristate the output pin with the triac on to prevent this)

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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