Patent ID: 6597230
Filing Date: 2003-07-22
Classification: G01R

Abstract:
A electronic device for generating a power signal Pav, which is a measure of the average power taken, via poles of the voltage source VB, from a voltage source VB which supplies a sine-shaped voltage Vs, which electronic device is provided witha circuit part I for generating a signal U which is a measure of the effective value of the voltage Vs, a circuit part II for generating a square-wave voltage Vb which is in phase with the sine-shaped voltage Vs, a circuit part III for generating a signal which is a measure of the product Q of a current Is supplied by the voltage source VB and the square-wave voltage Vb, a circuit part IV for generating a signal Qav which is a measure of the average value of the signal Q, and a circuit part V for generating a signal which is a measure of the product of the signal Qav and the signal U, the signal generated by the circuit part V forming the power signal Pav.