FIELD: electricity.
SUBSTANCE: proposed electronic part of field device includes electric current control. Supply current is set with supply voltage supplied with external energy source. Besides, electronic part of field device has internal control and evaluation circuit to control the field device, as well as internal feed circuit. In feed circuit there provided is controller of consumed voltage, through which at least sometimes the first supply current component flows. Besides, feed circuit has the second controller of consumed voltage, through which at least sometimes the second supply current component flows. Besides, in feed circuit there is voltage control through which at least sometimes the third supply current component flows. At that, both the first and the second consumed current flows through control and evaluation circuit. Besides, two controllers of consumed voltage are galvanically isolated from each other.
EFFECT: simplifying the design of field devices at providing the effective use of electric energy for feeding functional assemblies.
51 cl, 13 dwg
