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:
Jul. 14, 2015
Filed:
Jul. 06, 2012
Prapan Paul Tinaphong, Westfield, IN (US);
William Roger Tittle, Indianapolis, IN (US);
James K. Rinehart, Indianapolis, IN (US);
Prapan Paul Tinaphong, Westfield, IN (US);
William Roger Tittle, Indianapolis, IN (US);
James K. Rinehart, Indianapolis, IN (US);
VOXX International Corporation, Hauppauge, NY (US);
Abstract
A current selectable USB charger includes a USB (universal serial bus) connector, a crossover switch, a pair of voltage dividers and a power supply. The power supply provides preferably a +5 volt DC voltage to the pair of voltage dividers. The pair of voltage dividers includes a first voltage divider and a second voltage divider, each being formed of a pair of series-connected resistors. The voltage on the junction of the series-connected resistors of the first voltage divider is selectively provided, through the crossover switch, to one of the D− pin and the D+ pin of the USB connector. The voltage on the junction of the series-connected resistors of the second voltage divider is selectively provided, through the crossover switch, to one of the D+ pin and the D− pin of the USB connector.