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:
Feb. 24, 2015
Filed:
Apr. 15, 2009
Joe G. Guimont, Plymouth, MN (US);
David K. Nelson, Medicine Lake, MN (US);
Walter W. Heikkila, Burnsville, MN (US);
Anuj Kohli, Apple Valley, MN (US);
Joe G. Guimont, Plymouth, MN (US);
David K. Nelson, Medicine Lake, MN (US);
Walter W. Heikkila, Burnsville, MN (US);
Anuj Kohli, Apple Valley, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A system for initializing circuitry is presented. The system employs a power-on reset circuit having a threshold voltage and a programmable switch circuit. The power-on reset circuit has a detector circuit for detecting a reference voltage, and a one-sided latch for generating an output voltage reflective of the reference voltage. The detector circuit has a threshold after which the one-sided latch is activated. The programmable switch circuit receives the output voltage of the power-on reset circuit and generates an enable signal and its complement based on the status of an internal fuse. The switch point of the power-on reset circuit provides for a rapid increase in output voltage that offsets parasitic leakage current in the programmable switch circuit that can result in improper enable signal output. A high resistance direct path to ground on an output node of the power-on reset circuit prevents residual charge from causing an undesired misfire.