The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1989
Filed:
Jun. 24, 1988
Miran Milkovic, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
An electronic energy consumption measuring circuit capable of being fabricated on a single integrated circuit chip employs a switched-capacitor integrator for integrating the product of first and second voltages which are proportional, respectively, to load voltage and current in an electrical system to provide a measure of the energy being consumed, and a hysteresis comparator for converting the integrator output into a pulse train wherein each pulse represents a predetermined amount of energy. The output pulses may be accumulated and displayed to provide an indication of total energy consumed. A divider at the hysteresis comparator output enables the capacitor ratio in the switched-capacitor integrator to be reduced substantially so that the capacitor values are approximately the same order of magnitude. This reduces the chip area necessary for fabricating the capacitors and improves the matching between the capacitors, thereby affording higher integration accuracy.