AC power detecting circuit made by MD7750

Published:2011/6/21 8:10:00 Author:leo | Keyword: AC power detecting circuit made by MD7750, AD7750 | From:SeekIC

As picture a and b show, this is a AC power detecting circuit made by MD7750.AC power is the product of multiplication of current value and voltage value. This circuit is used to detect the power of 50 Hz single phase AC circuit. It can adopt common A/D converter but here it takes special A/D converter AD7750 with power detecting function. The voltage value and current value can be tested on the high voltage terminal, therefore, current and voltage signals can be detected by voltage divider.AD7750 has two input terminals which are current signals terminal V1 and voltage signals terminal V2. These two terminals are different from each other.



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