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. 23, 2013
Filed:
Mar. 01, 2012
Applicants:
Nidhi Chaudhry, Ghaziabad, IN;
Parul K. Sharma, Noida, IN;
Inventors:
Nidhi Chaudhry, Ghaziabad, IN;
Parul K. Sharma, Noida, IN;
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage clamping circuit for protecting an input/output (I/O) terminal of an integrated circuit from over shoot and under shoot voltages includes transistors connected to form a current conducting path. A voltage at the I/O pin is detected using a voltage detection circuit. The current conducting path is switched on when the voltage at the I/O pin exceeds a predetermined value.