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. 13, 2008
Filed:
Jul. 26, 2004
Douglas A. Scratchley, St. Petersburg, FL (US);
Charles F. Hayek, Seminole, FL (US);
Ernest Frank John Graetz, Largo, FL (US);
Douglas A. Scratchley, St. Petersburg, FL (US);
Charles F. Hayek, Seminole, FL (US);
Ernest Frank John Graetz, Largo, FL (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A voltage reference circuit receives an input voltage at a first port and a time varying input signal at a second port. The voltage reference circuit includes a switching circuit that is responsive to the first and second ports, and that generates an AC signal from the input voltage. The voltage reference circuit further includes a voltage multiplier circuit, coupled to the switching circuit to receive the AC signal and to create a DC signal with a selected voltage level. The voltage reference circuit further includes a plurality of voltage reference modules, coupled together to form a voltage reference stack, and coupled to the voltage multiplier circuit to receive the selected voltage level and output a precise reference voltage.