IP Library Granted Patent US 12683073
Granted Patent B2
US 12683073 · App. 18/070,166 · Granted Jul 14, 2026

Method of efficiently transforming energy using a multifilar inductor with at least three switchable windings

Inventor: Brian Elfman (Alameda, CA)
Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
H01F27/40H01F27/2823H01F27/42
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Quick Facts
Patent No.
US 12683073
App. No.
18/070,166
Granted
Jul 14, 2026
Kind
B2
Abstract

Embodiments of a multifilar inductor with at least three windings that are switchable, having a power assigned winding denoted as P 1 , a suppression assigned winding denoted as B, a containment assigned winding denoted as T, a switching apparatus to switch assignments between the P 1 , B and T windings; and a capacitor bank, wherein B suppresses the back EMF generated by a pulse power, T contains field emitted EMF generated by the pulse power. The input pulse power input is converted to a constant current output into the capacitor bank such that its time duration is extended by the combination of the inductor windings plus the capacitor bank to thereby minimize the peak inductance below the inductor's saturation point.

Claims (11)

1 . A method of efficiently transforming energy using a multifilar inductor with at least three switchable windings, comprising:

providing, as part of the inductor, a power assigned winding denoted as P 1 , a suppression component assigned winding denoted as B, and a containment component assigned winding denoted as T;

switching, through a switching apparatus, assignments between the P 1 , B and T windings;

suppressing, by the B winding, back Electromagnetic Force (EMF) generated by a pulse power generator and input to P 1 , wherein the T winding contains a field emitted EMF created by pulse power from the pulse power generator; and

converting input pulse power to a constant current output into a capacitor bank coupled to the inductor.

2 . The method of claim 1 further comprising switching assignments between multifilar windings to be either a service voltage bank charging period, or a period between power pulses of the pulse power.

3 . The method of claim 1 wherein the converting step extends a time duration of the input pulse power by a combination of the at least three switchable windings plus the capacitor bank to thereby minimize a peak inductance below a saturation point of the inductor.

4 . The method of claim 2 wherein the P 1 , B, and T windings are wrapped adjacent to one another around a core, and wherein a first end of each winding forms a first lead and a second end of each winding forms a second lead, and further wherein the windings are wrapped around the inductor such that the second lead of each winding terminates at a set distance on the core from the first end of each winding.

5 . The method of claim 4 wherein each winding comprises a copper conductor wire, and wherein the core is one of air or a ferrite material.

6 . The method of claim 2 further comprising providing a respective temperature sensor associated with each of the P 1 , B, and T winding.

7 . The method of claim 1 wherein a suppression component having the suppression component winding comprises a steering diode, and wherein a containment component having the containment component assigned winding comprises a section of coiled wire disposed along at least a first surface of the inductor.