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:
Nov. 10, 1981
Filed:
Jul. 02, 1979
Applicant:
Inventors:
James J Remedi, Austin, TX (US);
Alan K Peterson, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307571 ; 307264 ; 3072 / ;
Abstract
A CMOS power on reset circuit is provided which operates with low power supply voltages and yet uses a minimum amount of DC power. The circuit includes a threshold detector which provides an output when the power supply voltage exceeds the transistor threshold voltage by approximately half a volt. A capacitor is connected to the positive power supply terminal to avoid having a narrow output pulse when the power supply rises at a low rate. An output buffer/inverter can be used to provide a better output pulse and to provide a desired output polarity.