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:
Jul. 22, 2003
Filed:
Oct. 03, 2001
Bruce W. Carsten, Corvallis, OR (US);
Other;
Abstract
A controlled rectifier circuit having a BJT implemented as the controlled rectifier (CR) and first and second turn-off transistors coupled respectively between the base and collector and base and emitter of the CR BJT to rapidly remove stored charge from the collector-base junction of that CR BJT. The turn-off transistors may be implemented with BJTs, FETs (or related active electronic devices) and the polarity of the transistors may be the same or opposite to that of the CR BJT. Anti-saturation and drive current amplifying circuitry may be provided. A turn-off drive command may be delivered to an appropriate transistor via steering logic or an auto-steering configuration. The circuit is preferably implemented as an integrated circuit.