An apparatus for and a method of measuring, in real-time, and indicating power consumption of a product powered by a switching mode power supply (SMPS). Power is supplied to the product through a transformer having a predetermined primary coil inductance, wherein a current of a primary coil of the transformer...http://www.google.ca/patents/US20040046543?utm_source=gb-gplus-sharePatent US20040046543 - Apparatus for and method of measuring power consumption
