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. 21, 1995
Filed:
Jul. 07, 1993
Jean-Marie Bourgeois, Roquefort la Bedoule, FR;
SGS-Thomson Microelectronics, S.A., Pouilly, FR;
Abstract
The invention relates to a pulse-controlled converter, and a motor electric controller including such a converter. A first switch is controlled by pulses applied to its gate, these pulses being produced by a digital control unit linked to the gate of the first switch via a transformer. The transformer is linked to the digital control unit via a primary circuit and to the gate of the first switch via a secondary circuit. A second switch is directly controlled by the digital control unit. The secondary circuit includes a Zener diode and a resistor which are connected in series between a first terminal of a secondary winding of the transformer and the gate. The digital control unit generates a specific pulse synchronization sequence to control the converter so that problems of short-circuiting on the different bridge arms are avoided.