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:
Jun. 21, 2005
Filed:
Oct. 18, 2002
Antonino Milazzotto, Rodano, IT;
Mario Di Guardo, Gravina di Cantania, IT;
Antonino Cucuccio, Catania, IT;
Francesco Di Marco, Mascalucia, IT;
Antonino Milazzotto, Rodano, IT;
Mario Di Guardo, Gravina di Cantania, IT;
Antonino Cucuccio, Catania, IT;
Francesco Di Marco, Mascalucia, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A circuit device is provided for driving an AC electric load, of the type inserted between a terminal of an AC power supply line and a terminal of the electric load to be driven and including a generator of PWM signals to be transferred to the load. This circuit is an AC/AC converter adapted to power supply the load from any level of the power supply line sinusoid and comprising first and second voltage driven switches, the first switch to power supply the load and the second switch to enable loop-back of the current. The switches always operate in a complementary manner, i.e., when the first switch is on, the other is off, and vice versa.