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:
Aug. 10, 1993
Filed:
Jul. 22, 1991
Horst Gruning, Wettingen, CH;
Asea Brown Boveri Ltd., Baden, CH;
Abstract
In an inverter with overload current projection, a half-bridge is divided in module form into two quarter-bridge branches. Disposed in the latter are a gate turn-off semiconductor component (7, 8), a freewheeling diode (9, 10) situated opposite with respect to a center point and a blocking capacitor (11, 12) in parallel with freewheeling diode (9, 10) and turn-off semiconductor component (7, 8). A measuring resistor (R1, R2) and a current-limiting component (L1, L2) are provided between a load terminal (3) of the bridge circuit and the center points of the quarter-bridge branches. The load current can be determined in a transient-free manner with the measuring resistors.