Patent ID: 7222034
Filing Date: 2007-05-22
Classification: G01R

Abstract:
1. A method, suitable for use in an oscilloscope, for performing in-circuit characterization of a magnetic component, said method comprising the steps of: a) receiving data indicative of the number of winding turns that are applied to a core of said magnetic component; b) receiving data indicative of a length of a magnetic path of said magnetic component; c) measuring voltage across, and current through, said winding of said magnetic component; d) deriving actual B and H values from said voltage and current measurements, and said data indicative of path length and indicative of said number of turns; e) plotting a B-H curve from said data and measurements; and f) deriving a value of at least one magnetic parameter from said B-H curve, said magnetic parameter being one of saturation flux density (Bsat), Remnant flux density (Br), Permeability (I), and Coercivity (Hc).