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Unread 01/14/2005, 05:29 PM   #21
aka_BigRed
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Join Date: Mar 2004
Location: St. Paul, MN
Posts: 162
Quote:
Originally posted by BeanAnimal
anybody get a power monitor working yet? I looked at the national designs... but have yet to wind my own 1800:1 current transformer... hrmm wonder why :P

There has got to be an easier way! I have a garbage UPS (cyberpower) that reports current draw via the serial port. (as do most UPS). I think I will hack into this thing.... unless somebody else wants to revers engineer it.

Bean
Dallas makes a couple 1-wire chips that monitors current & voltage: (DS2760 DS2761 DS2762) all are made for High-Precision Li+ Battery Monitoring. I would think we could use these?

http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3950

I was trying to look up the PH voltage put out by the probe circuit, and I thought it's pretty low. (can't remember exactly off the top of my head).

I think interfacing the DS2762 & PH circuit for correct voltages will be the challenge.

????


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