Patent ID: 6717416
Filing Date: 2004-04-06
Classification: G01D

Abstract:
Circuit configuration for voltage supply of a two-wire sensor (S) which is connected to a supply voltage source (U) via a first connection line (V1) in which a voltage longitudinal controller (SR) is positioned, and a second connection line (V2),wherein a controller output is connected to the second connection line (V2) via at least one limiting diode (D1), and wherein a current-limiting resistor (R1) is positioned in one of the two connection lines (V1) between the two-wire sensor (S) and the limiting diode (D1), characterized in that: the controller output is connected to the second connection line (V2) via a series circuit comprising two limiting diodes (D1, D2), and that a joint node of the two limiting diodes (D1, D2) is connected to a control input of the voltage longitudinal controller (SR).