US 12,176,753 B2
Emergency lighting system
Cristiano De Menezes, Dornbirn (AT); and Alekssander Santiago, Dornbirn (AT)
Assigned to Tridonic GmbH & Co KG, Dornbirn (AT)
Appl. No. 17/799,245
Filed by Tridonic GmbH & Co KG, Dornbirn (AT)
PCT Filed Jan. 11, 2021, PCT No. PCT/EP2021/050332
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/223917, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. 20173103 (EP), filed on May 6, 2020.
Prior Publication US 2023/0109561 A1, Apr. 6, 2023
Int. Cl. H05B 45/10 (2020.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01); H02J 9/02 (2006.01); H02J 9/06 (2006.01); H05B 47/105 (2020.01); H05B 47/18 (2020.01)
CPC H02J 9/065 (2013.01) [H02J 7/0063 (2013.01); H02J 7/342 (2020.01); H02J 9/02 (2013.01); H05B 47/105 (2020.01); H05B 47/18 (2020.01)] 15 Claims
OG exemplary drawing
 
1. An emergency lighting system (100), comprising:
a DC bus (103);
multiple local drivers (101) for multiple emergency lighting means, each local driver being connected to the DC bus (103) and further connected to a local battery (102), wherein each local driver (101) comprises a bidirectional charger configure to charge the local battery from the DC bus (103) and to supply power from the local battery (102) to the DC bus (103);
at least one central battery (105); and
a bus manager (104) connected to the at least one central battery (105) and comprising output terminals that connect the bus manager (104) to the DC bus (103), wherein the bus manager (104) comprises a communication interface (104a) for communicating with the multiple local drivers (101) and is configured to receive energy supply information from the multiple local drivers (101) and from the at least one central battery (105); and further
wherein in emergency mode the bus manager (104) is configured to control each of the multiple local drivers (101) to receive power from its local battery (102) and then receive power from any central batteries (105) connected to the bus manager, and lastly share power from local batteries associated with other local drivers, all based on the energy supply information.