The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2016
Filed:
Apr. 21, 2014
Abb Technology Ag, Zürich, CH;
Tobias Wikström, Egliswil, CH;
ABB Schweiz AG, Baden, CH;
Abstract
An exemplary current switching device includes an integrated gate-commutated thyristor with an anode, a cathode, and a gate, wherein a current between the anode and the cathode is interruptible by applying a switch-off voltage to the gate; and a gate unit for generating the switch-off voltage. The gate unit and a connection of the gate unit to the gate establish a gate circuit having a stray impedance. The gate unit is adapted for generating a spiked switch-off voltage with a maximum above a breakdown voltage (VGR) between the cathode and the gate, such that the switch-off voltage at the gate stays below the breakdown voltage (VGR) due to the stray impedance of the gate circuit.