EP 4078793 A1 20221026 - CIRCUIT ASSEMBLY FOR CONNECTING TO A CURRENT SOURCE
Title (en)
CIRCUIT ASSEMBLY FOR CONNECTING TO A CURRENT SOURCE
Title (de)
SCHALTUNGSANORDNUNG ZUM ANSCHLUSS AN EINE STROMQUELLE
Title (fr)
ENSEMBLE CIRCUIT DE CONNEXION À UNE SOURCE DE COURANT
Publication
Application
Priority
- DE 102019134598 A 20191216
- EP 2020082918 W 20201120
Abstract (en)
[origin: WO2021121865A1] The invention relates to a circuit assembly for connecting to a current source, preferably a 4-20 mA current loop or a high-ohmic voltage source, preferably a voltage source which has an internal resistance of more than 100 ohm, having: - at least one step-up converter with a coil (L1), a diode (D2), in particular a flyback diode, which is serially connected to the coil (L1), an output-side storage capacitor (C4) for adding an output voltage, and a switch element (V1) for switching the coil (L1) against ground; and - a circuit part for dynamically actuating the switch element of the step-up converter, wherein the circuit part is at least designed to actuate the circuit element of the step-up converter in a start-up phase such that the current source directly charges the storage capacitor via the coil (L1) until a specifiable reference value is reached.
IPC 8 full level
H02M 1/36 (2007.01); H02M 1/00 (2006.01); H02M 3/156 (2006.01)
CPC (source: EP US)
H02M 1/0006 (2021.05 - US); H02M 1/36 (2013.01 - EP US); H02M 3/156 (2013.01 - EP); H02M 3/158 (2013.01 - US); H02M 1/0006 (2021.05 - EP); H02M 1/0087 (2021.05 - EP)
Citation (search report)
See references of WO 2021121865A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102019134598 A1 20210617; CN 114762232 A 20220715; EP 4078793 A1 20221026; US 2023023908 A1 20230126; WO 2021121865 A1 20210624
DOCDB simple family (application)
DE 102019134598 A 20191216; CN 202080083873 A 20201120; EP 2020082918 W 20201120; EP 20811590 A 20201120; US 202017757369 A 20201120