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Subject: Re: log-antilog multiplier

Date: 01/06/03 at 9:24 PM
Posted by: Russ Kincaid
E-mail: russlk@netzero.com
Message Posted:

In Reply to: Re: log-antilog multiplier posted by xwindy on 01/06/03 at 6:09 PM:

Even if you rectify the two sine waves, multiplying them will not produce a DC voltage proportional to sin(phase). If you square up the two waves and feed them into an exclusive-or gate, the output will be a linear representation of the phase angle. One way to get an output proportional to the sine is to sample and hold waveform A when waveform B goes thru zero.


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