MAINS FREQUENCY METER 2

Published:2013/5/7 21:19:00 Author:muriel | Keyword: MAINS FREQUENCY METER | From:SeekIC

WARNING! This circuit is directly connected to the mains and should be assembled in a box which will avoid access to any of its part and care must be exercised when calibrating the unit. If you live in the States or you have a 110 VAC, 60 Hz mains, you may try the second circuit: the reported values are calculated values, I did not actually test the unit. The odd capacitors values are easily obtained with the combination of standard values: 0.94 is 2 x 0.47 in parallel, 1.056 is 1μF + 56nF in parallel and 1.1 is 1 + 0.1μF.



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