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:
Apr. 14, 2020
Filed:
Dec. 29, 2017
Texas Instruments Incorporated, Dallas, TX (US);
Maurizio Granato, Milan, IT;
Giavanni Frattini, Travaco' Siccomario, IT;
Shailendra Kumar Baranwal, Richardson, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
In described examples, an isolated DC-DC converter includes an input node for receiving an input voltage, and a transformer including a primary side having first and second terminals and a ground. First and second high-side switches are coupled between the input node and the first and second terminals, respectively. A first low-side switch is coupled between the first terminal and the ground, and through a first voltage limiter to be activated by a voltage at the second terminal. A second low-side switch is coupled between the second terminal and the ground, and through a second voltage limiter to be activated by a voltage at the first terminal. A switch controller controls the high-side switches so that voltages across the high-side switches are alternatingly zero, using a current through the primary side to alternatingly charge one terminal to an input voltage and discharge the other terminal to a ground voltage.