Patent · US Active

DC filter device

US11664777B2 · kind B2 · utility

2Cited by

3References

10Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Daniel Spesser · Mühlacker, DE
Tim Pfizenmaier · Leonberg, DE
Stefan Endres · Reichenschwand, DE

Key dates

Filing date	Jul 19, 2021
Grant date	May 30, 2023
Priority date	—
Expiry date	Jul 19, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/0064
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A DC filter device includes: a first filter device connection; a second filter device connection; a third filter device connection; a fourth filter device connection; a coil core; at least one first coil arranged on the coil core, the at least one first coil being connected in between the first filter device connection and the third filter device connection; at least one second coil arranged on the coil core, the at least one second coil being connected in between the second filter device connection and the fourth filter device connection; and a third coil arranged on the coil core, the third coil having a first coil connection and a second coil connection. The first coil connection and the second coil connection are connected to one another via a circuit device, which circuit device has a resistor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.