Endress+hauserse+co. Kg

Julian Bockstaller

Harald Schäuble

Ralf Lobenstein

A circuit assembly for connection to a current source, preferably a 4-20 mA current loop and/or a high-impedance voltage source, preferably a high-impedance voltage source comprising an internal resistance greater than or equal to 100 ohms, includes at least one boost converter with a coil, a diode, in particular a flyback diode, which is connected in series with the coil, an output-side storage capacitor for summing an output voltage, and a switching element for connecting the coil to ground; a circuit part for dynamically controlling the switching element of the boost converter, wherein the circuit part is at least designed to control the switching element of the boost converter in a start-up phase such that the current source directly charges the storage capacitor via the coil until a predefinable reference value is reached.

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Schopfheim, Germany

Julian Bockstaller