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:
Jul. 15, 2003
Filed:
Oct. 18, 2001
Ernst H. Dummermuth, Chesterland, OH (US);
Michael J. Knieser, Richmond Heights, OH (US);
Patrick C. Herbert, Mentor, OH (US);
Jeffrey R. Annis, Waukesha, WI (US);
Steven M. Galecki, Concord, OH (US);
Richard D. Harris, Solon, OH (US);
Mark A. Lucak, Hudson, OH (US);
Robert J. Kretschmann, Bay Village, OH (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
An isolated-ADC and a method for providing isolated analog-to-digital conversion are disclosed. The isolated-ADC includes a microelectromechanical system (MEMS), a comparator, and a digital-to-analog converter (DAC). The MEMS includes a beam element supported from a substrate for movement with respect to an axis, first and second actuators and a sensor. The first and second actuators are capable of exerting respective forces upon the beam element causing the beam element to move in response to analog input and feedback signals, respectively. The sensor detects changes in position of the beam element and produces a position signal indicative thereof. The comparator generates a digital signal based upon a comparison of the position signal with a reference value. Based on the digital signal, the DAC generates the feedback signal, and the isolated-ADC produces a digital output signal.