US 10,352,508 B2
DC-powered lighting device
Matthias Wendt, Würselen (DE); and Harald Josef Günther Radermacher, Aachen (DE)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 16/95,103
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Apr. 4, 2017, PCT No. PCT/EP2017/057941
§ 371(c)(1), (2) Date Oct. 19, 2018,
PCT Pub. No. WO2017/182260, PCT Pub. Date Oct. 26, 2017.
Claims priority of application No. 16166628 (EP), filed on Apr. 22, 2016.
Prior Publication US 2019/0120441 A1, Apr. 25, 2019
Int. Cl. H05B 37/02 (2006.01); F21K 9/20 (2016.01); F21K 9/278 (2016.01); H05B 33/08 (2006.01); F21V 23/04 (2006.01); F21V 23/06 (2006.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01)
CPC F21K 9/278 (2016.08) [F21V 23/04 (2013.01); F21V 23/06 (2013.01); H05B 33/0806 (2013.01); H05B 37/0245 (2013.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08)] 11 Claims
OG exemplary drawing
 
1. A DC-powered lighting device for placement in an external light fixture, the DC-powered lighting device comprising:
a lighting unit configured to emit light in response to receiving DC power;
a connector configured to mechanically and electrically connect the DC-powered lighting device to the external light fixture;
a probing unit connected to the connector and configured to determine whether electrical power from a first external electrical power source is currently available via the connector and to provide a power-present signal having a signal value that is indicative of whether or not electrical power is currently available via the connector;
a DC-power input unit that is different from the connector and is configured to receive DC power from a second external electrical power source that is different from the first external electrical power source, and to deliver the received DC power to the lighting unit; and
a switching unit configured to allow or prevent the delivery of the DC power from the DC-power input unit to the lighting unit in dependence on the current signal value of the power-present signal,
wherein the DC-power input unit comprises a DC connector for connection to the second external electrical power source, and wherein the DC connector is an Ethernet connector or a universal serial bus connector.