I need a circuit that can attenuate (is that the word?) a 110vac to 140vac
(rms) voltage down to a readable voltage for the ADC on a PIC (5volts and
under).  It has to be fairly accurate (within 1%), or be setup to be
calibrated.  I'm wanting to compensate for line voltage flucuations, by
gating a triac or two SCR's, but I need to be able to accurately read the
line voltage in order to do this.

Any help is greatly appreciated....

Thanks in advance

Pat
op1cwk@flashmail.com

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