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Kopec; James W.
St. Charles, IL
No. of patents:

Patent Number Title Of Patent Date Issued
8013615 Diagnostic circuit and method of testing a circuit September 6, 2011
A diagnostic circuit is configured for connecting to a unit under test that has a load and a sinusoidal source. The diagnostic circuit includes a voltage sensing device that has an input for sensing a signal, a first terminal for connecting to the load, a second terminal for connecting t
5119683 Solenoid controller with flyback pulses useful for diagnostics and/or control June 9, 1992
Measurement of fluid flow (or other fluid parameter) through a solenoid-actuated valve (12), and/or measurement of nominal operation of the valve itself, is achieved in one embodiment by modifying the amplitude of flyback pulses (48) generated by the solenoid. The degree of modificat
5053911 Solenoid closure detection October 1, 1991
A method and apparatus for electronically detecting when a solenoid has closed, or nearly closed, indirectly senses changes in the inductance of the solenoid's coil as the solenoid closes. When the inductance has changed by a selected amount, the solenoid is assumed to have closed, or

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