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:
Apr. 09, 2024
Filed:
Apr. 29, 2022
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Junjun Li, Newton, MA (US);
Abbas Komijani, Mountain View, CA (US);
Hongrui Wang, San Jose, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H01L 27/02 (2006.01);
U.S. Cl.
CPC ...
H02H 9/046 (2013.01); H01L 27/0255 (2013.01);
Abstract
An output circuit included in an integrated circuit may employ multiple protection circuits to protect driver devices from damage during an electrostatic discharge event. One protection circuit clamps a signal port to a ground supply node upon detection of the electrostatic discharge event. Another protection circuit increases the voltage level of a control terminal to one of the driver devices during the electrostatic discharge event to reduce the voltage across the driver device and prevent damage to the device.