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. 28, 1999
Filed:
Jun. 02, 1998
Applicant:
Inventor:
Michael S Chung, San Jose, CA (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
327143 ;
Abstract
A precision power-on reset circuit which is highly insensitive to temperature and process variations includes a self-biased proportional-to-absolute-temperature (PTAT) current generator 4, a base-emitter (V.sub.BE) voltage detector 6, and a bipolar complementary metal oxide semiconductor (BiCMOS) inverter 8, which generates a power-on reset pulse for resetting an application circuit when a power supply voltage is turned on. The power-on reset circuit may further include a complementary metal oxide semiconductor (CMOS) buffer 10 coupled to the BiCMOS inverter 8 to isolate the application circuit from currents in the power-on reset circuit.