Power supply system using an inductor assembly

US10186950B2 · kind B2 · utility

Assignee

• SMA Solar Technology AG · DE

Inventors

• Henrik Wolf · Kassel, DE
• Marek Rylko · Bielsko-Biała, PL
• Milosz Handzel · Lapeer, US
• Marcin Kacki · Żegocina, PL
• Artur Mulawa · Bibice, PL
• Piotr Otwinowski · Lapeer, US
• Milosz Szarek · Lapeer, US

Key dates

• Filing date: Apr 16, 2018
• Grant date: Jan 22, 2019
• Expiry date: Apr 16, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F27/38
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An inductor assembly is disclosed that includes a magnetic core with a center leg and a number n of phase legs, wherein n is an integer and n>1. Each phase leg is magnetically connected to the center leg by an upper bridge and a lower bridge to form a magnetic main loop, a midpoint of the phase leg being magnetically connected to a center point of the center leg by a shunt element including a gap. Each phase leg further includes an upper inductor coil disposed on an upper phase leg section located between the midpoint and the upper bridge and a lower inductor coil disposed on a lower phase leg section located between the midpoint and the lower bridge. Alternatively, the upper and lower inductor coils are disposed on respective upper and lower bridges.