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:
May. 31, 2011
Filed:
Feb. 06, 2009
Paul F. Illegems, Tucson, AZ (US);
Paul F. Illegems, Tucson, AZ (US);
Standard Microsystems Corporation, Hauppauge, NY (US);
Abstract
A power-on-reset (POR) circuit may comprise a first circuit powered by a first supply voltage and configured to generate a second supply voltage based on the first supply voltage, the second supply voltage having a nominal value lower than a nominal value of the first supply voltage. The POR circuit may also include a second circuit powered by the second supply voltage and configured to generate a POR signal. The second circuit may be configured to assert the POR signal when the second supply voltage reaches a value that is sufficiently high for the second circuit to become operational, keep the POR signal asserted until the first supply voltage reaches a second value that is higher than the nominal value of the second supply voltage by a specified difference voltage value, and deassert the POR signal once the first supply voltage reaches the second value.