IEVref: 131-12-20 ID: Language: en Status: Standard Term: differential inductance Synonym1: Synonym2: Synonym3: Symbol: Ld Definition: for an inductive two-terminal element with terminals A and B, derivative of the total flux ΨAB between the terminals with respect to the electric current i in the element: ${L}_{\text{d}}=\frac{\mathrm{d}{\Psi }_{\text{AB}}}{\mathrm{d}i}$ where the sign of the total flux is determined by taking the voltage, in the time integral defining it, as the difference of the electric potentials at A and B, and where the current is taken as positive if its direction is from A to B and negative in the opposite case Note 1 to entry: For an ideal inductor, the differential inductance Ld is equal to its inductance L. Publication date: 2021-03 Source: Replaces: 131-12-20:2008-09 Internal notes: CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: