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:
Sep. 12, 2017
Filed:
Sep. 27, 2013
Texas Instruments Incorporated, Dallas, TX (US);
Srikanth Manian, Chennai, IN;
Yogesh Darwhekar, Bangalore, IN;
Abhishek Agrawal, Bangalore, IN;
Koby Levy, Bat-Yam, IL;
Yaniv Tzoreff, Jerusalem, IL;
Erez Shalom, Givataim, IL;
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A method of charging a power harvested supply in an electronic communication device, which can be an NFC (near field communication) device. The power harvested supply in the electronic communication device is charged without causing dV/V violation and avoids false wake up. An RF (radio frequency) field is received at the antenna of the electronic communication device. A differential voltage is generated from the RF field at a first tag pin and a second tag pin of the electronic communication device. A bandgap reference voltage and a reference current are generated in response to the differential voltage. A shunt current is generated in response to the differential voltage and the bandgap reference voltage. A bank of switching devices is activated if the shunt current is more than the reference current.