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:
Oct. 15, 1996
Filed:
Apr. 07, 1995
Hermann Hammel, Rot am See, DE;
Horst Hafner, Heilbronn, DE;
Jurgen Schnabel, Leingarten, DE;
Henrik Gutsch, Heilbronn, DE;
TEMIC TELEFUNKEN microelectronic GmbH, Heilbronn, DE;
Abstract
A switch is described with a bipolar transistor as first switching element having a high breakdown voltage when operated in the reverse direction. This can be accomplished by a second switching element provided in the switch, a switching transistor, e.g. an MOS transistor, through which the base and the collector of the bipolar transistor are joined together, is activated in the reverse mode of the switch, i.e. when the bipolar transistor is in inverse mode, in such a way that the second switching element becomes conductive. The collector-emitter breakdown voltage of the bipolar transistor, i.e. its maximum permissible collector-emitter voltage, is thus brought closer to its higher base-emitter breakdown voltage.