US Patent Issued to ABB Schweiz on Sept. 22 for "Inrush current limiting circuit" (Swiss Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,376, issued on Sept. 22, was assigned to ABB Schweiz AG (Baden, Switzerland).

"Inrush current limiting circuit" was invented by Florian Vancu (Schlieren, Switzerland) and Markus Fueglister (Muelligen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inrush current limiter circuit for a rectifier provides a flow of a current between a rectifying part of the rectifier and a filter capacitance. A power stage includes a power stage resistor and a power stage transistor disposed in parallel circuit arrangement to the power stage resistor. The power stage resistor conducts an amount of the current in dependence on the state of the power stag...