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:
May. 05, 2020
Filed:
Nov. 20, 2018
L3 Cincinnati Electronics Corporation, Mason, OH (US);
Justin Graves, Middletown, OH (US);
L3 CINCINNATI ELECTRONICS CORPORATION, Mason, OH (US);
Abstract
Embodiments described herein are directed to an energy-harvesting circuit configured to harvest energy from a power converter circuit within a switch mode power supply and generate a positive, a negative or a bipolar power supply rail to power load circuitry. The energy-harvesting circuit includes a transformer, a coupling capacitor, a diode and a capacitor. The transformer has a primary winding, a secondary winding and a magnetic core shared therebetween. The primary winding is electrically connected between a drain and a source of a transistor switch connected to the power converter circuit. The coupling capacitor is electrically connected between the drain and the primary winding and configured to provide a reset mechanism for the magnetic core. The anode of the diode is electrically connected to the secondary winding. The capacitor is electrically connected in series with the cathode of the diode and in parallel with the load circuitry.