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. 21, 2020
Filed:
May. 23, 2014
Applicant:
Fairchild Semiconductor Corporation, San Jose, CA (US);
Inventors:
Assignee:
Fairchild Semiconductor Corporation, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 1/00 (2006.01); G06F 1/26 (2006.01);
U.S. Cl.
CPC ...
H02J 1/00 (2013.01); G06F 1/266 (2013.01); Y10T 307/50 (2015.04);
Abstract
The disclosure provides a power supply circuit including an external power source, an ID pin provided in a universal serial bus (USB) port on a printed circuit board (PCB), and an internal power and signal management subsystem. The external power source is configured to power the internal power and signal management subsystem via the ID pin. A power supply method and a portable device are also disclosed.