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. 03, 2017
Filed:
Apr. 28, 2016
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Lorenzo Trevisan, Tavazzano con Villavesco, IT;
Massimiliano Picca, Muggiò, IT;
Roberto Cardu, Bologna, IT;
Cristian Porta, Canegrate, IT;
STMICROELECTRONICS S.R.L., Agrate Brianza, IT;
Abstract
A resonant converter includes a primary switching circuit with a primary winding and a primary full-bridge switching stage that drives the primary winding. A resonance inductor is in series with the primary winding. A secondary resonant circuit has a secondary winding magnetically coupled to the primary winding and a resonance capacitor electrically connected in parallel with the secondary winding. A secondary rectification stage is electrically connected in parallel to the resonance capacitor. A driving module receives a signal representing the voltage measured across an upper or lower switching half-bridge. The drive module detects a negative voltage in the signal. At each cycle, the drive module anticipates a control signal for control of the switches of the lower or upper switching half-bridge that is to be activated the next switching cycle by a shift time that is reduced cycle until the condition of absence of negative voltage in the signal is satisfied.