Patent · US Active

Circuit assembly for connecting to a current source

US12119744B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

Ralf Lobenstein · Schopfheim, DE
Harald Schäuble · Lörrach, DE
Julian Bockstaller · Schopfheim, DE

Key dates

Filing date	Nov 20, 2020
Grant date	Oct 15, 2024
Priority date	—
Expiry date	Jun 20, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/0087
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.