US 12,291,123 B2
Electronic circuit arrangement and method
Sebastian Ewert, Stuttgart (DE); Max Gerstadt, Stuttgart (DE); and Michael B. Wagner, Rottweil (DE)
Assigned to Mahle International GmbH, (DE)
Filed by Mahle International GmbH, Stuttgart (DE)
Filed on Feb. 2, 2022, as Appl. No. 17/591,552.
Claims priority of application No. 102021200913.1 (DE), filed on Feb. 2, 2021.
Prior Publication US 2022/0242268 A1, Aug. 4, 2022
Int. Cl. H02J 7/00 (2006.01); B60L 53/18 (2019.01); B60L 53/30 (2019.01); B60L 53/60 (2019.01); B60L 53/66 (2019.01); H03H 7/06 (2006.01)
CPC B60L 53/66 (2019.02) [B60L 53/18 (2019.02); B60L 53/30 (2019.02); B60L 53/305 (2019.02); B60L 53/60 (2019.02); H03H 7/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic circuit arrangement for an electric charging station, the electronic circuit arrangement providing an electrical communication connection between the electric charging station and an electric motor vehicle that is rechargeable with electric energy via the charging station, the electronic circuit arrangement comprising:
an electrical pilot contact and an electrical earth contact, to which the electric motor vehicle is electrically connectable for forming the electrical communication connection,
an electrical line path and an electrical oscillator arranged in the electrical line path for generating a pulse width modulated electrical communication signal,
wherein the electrical oscillator subdivides the electrical line path at least in a pilot portion ending in the pilot contact facing away from the electrical oscillator and into an earth portion ending in the earth contact facing away from the electrical oscillator,
an electrical parallel line path, in which an electrical capacitance is arranged, is electrically connected to the pilot portion and the earth portion parallel to the electrical oscillator,
an electrical parametrizable frequency filter device arranged in the pilot portion of the electrical line path for filtering the electrical communication signal, and
wherein in the pilot portion an electrical voltage measuring device is electrically connected to the electrical line path between the pilot contact and the parametrizable frequency filter device, the electrical voltage measuring device configured to measure an electrical voltage applied between the pilot contact and the earth contact.