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. 24, 1984
Filed:
Dec. 01, 1981
Ernst Hebenstreit, Munich, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
Circuit for controlling at least one power-FET, including a transformer having a primary and a secondary winding, a control input connected to the primary winding, a first terminal of the secondary winding connected to the gate electrode of the FET, at least one diode connected between the first terminal of the secondary winding and the gate electrode of the FET, a second terminal of the secondary winding connected to the source of the FET, a differential member connected between the control input and the primary winding, and a switch connected between the secondary winding and the gate electrode of the FET, the switch connecting the gate electrode of the FET to the first terminal of the secondary winding in the case of a given secondary signal of a first polarity, and the switch connecting the gate electrode of the FET to the source electrode of the FET in the case of a given secondary signal of a second polarity.