Patents Assigned to Elsyn, Inc.
  • Voltage measuring device for a source with unknown resistance
    Patent number: 5831427
    Abstract: A volt meter changes the dividing resistance across the terminals of a voltage source between first and second different resistances and measures voltage across the dividing resistor at the different resistances to determine an accurate voltage source magnitude from the measured voltages and the ratio of second to first resistances despite an unknown source resistance.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: November 3, 1998
    Assignee: Elsyn, Inc.
    Inventor: Donald R. Janke