US 12,088,428 B2
Bidirectional transmission of electrical power along with data over a wired telecommunications network
Jérôme Jean Sébastien Brenguier, L'Albenc (FR)
Assigned to Schneider Electric Industries SAS, Rueil Malmaison (FR)
Appl. No. 17/798,727
Filed by Schneider Electric Industries SAS, Rueil Malmaison (FR)
PCT Filed Jan. 11, 2021, PCT No. PCT/EP2021/050339
§ 371(c)(1), (2) Date Aug. 10, 2022,
PCT Pub. No. WO2021/170300, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 20305184 (EP), filed on Feb. 26, 2020.
Prior Publication US 2023/0084285 A1, Mar. 16, 2023
Int. Cl. H04L 12/40 (2006.01); H04L 12/10 (2006.01); H04L 49/351 (2022.01)
CPC H04L 12/40045 (2013.01) [H04L 12/10 (2013.01); H04L 49/351 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A network interface apparatus allowing a bidirectional transmission of electrical power along with data over a wired telecommunications network, said network interface apparatus comprising:
a connection portion adapted to connect the network interface apparatus to a wired telecommunications network;
a rectifier connected to the connection portion and comprising a plurality of rectifier elements;
a power distribution bus connected to the rectifier;
a first power controller configured to control a supply of electrical power to the power distribution bus when the network interface apparatus is powered by the wired telecommunications network;
a second power controller configured to control a supply of electrical power from the power distribution bus when the network interface apparatus is self-powered and aims to power a remote device through the wired telecommunications network;
wherein the network interface apparatus further comprises:
a first switch coupled to the first power controller and configured to selectively prevent electrical currents from flowing between the connection portion and the power distribution bus, and
a second switch and a third switch each respectively coupled to the second power controller and configured to selectively prevent electrical currents from flowing from the power distribution bus to the connection portion,
wherein the second switch is connected in parallel with a rectifier element of the plurality of rectifier elements of the rectifier, and
wherein the third switch is connected in parallel with a second rectifier element of the plurality of rectifier elements of the rectifier.