mains powered watt meter circuit?

0 ⤊

mains powered watt meter circuit?

I need to design a 230V mains powered watt meter. cant use non invasive current sensing techniques as I also will need to be able to turn on and off the measured device( eg heater, computer, lamp) Does anyone have a circuit I can use?

2007-08-02 01:20:25 · 2 answers · asked by johanna c 2 in Science & Mathematics ➔ Engineering

2 answers

http://www.elecdesign.com/Files/29/3378/Figure_01.gif
and
http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=3378

Do *not* open-circuit a current transformer. It can damage itself with high voltage, and be dangerous to anyone doing it.

2007-08-02 01:40:48 · answer #1 · answered by A Guy 7 · 0⤊ 0⤋

hi check the motion sensor on the security light

2016-05-20 23:53:07 · answer #2 · answered by alecia 3 · 0⤊ 0⤋