Sensor signal conditioning circuit
AssigneeMotorola, Inc.
InventorMichel Burri
Life of this patent
Estimating the term…
Abstract
An automotive sensor arrangement including an automotive sensor coupled via first and second wires to signal sensor evaluation means, a signal conditioning circuit comprising a first gate means connected to provide a bias operating voltage signal on said first wire to the sensor, a second gate means of similar construction to the first gate means and mounted in the same environment and first gate means, the second gate means being coupled to the second wire of the leas means for receive the voltage signal bears a predetermined relationship to the switching point voltage of the second gate means.
Claims9
An automotive sensor arrangement including an automotive sensor for providing an output signal and coupled via first and second wires to a signal conditioning circuit comprising a reference voltage means including a first gate means connected to the first wire to provide a bias operating voltage through said first wire to the sensor, a signal detector including a second gate means of similar construction to the first gate means and mounted in the same environment as the first gate means, the second gate means being coupled to the second wire to receive the output signal from the sensor, the bias operating voltage being coupled to the second wire through the sensor and through the second wire to the signal detector.
Dependencies are inferred from the claim text.