US 12,352,420 B2
Retrofit LED tube with safety switch
Haimin Tao, Eindhoven (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
Filed on Jul. 15, 2022, as Appl. No. 17/866,337.
Application 17/866,337 is a division of application No. 15/324,367, granted, now 11,421,868, previously published as PCT/EP2015/065401, filed on Jul. 6, 2015.
Claims priority of application No. 14176044 (EP), filed on Jul. 8, 2014.
Prior Publication US 2022/0349565 A1, Nov. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H05B 45/56 (2020.01); F21K 9/272 (2016.01); F21K 9/278 (2016.01); F21V 25/04 (2006.01); H05B 45/10 (2020.01); H05B 45/37 (2020.01); H05B 45/382 (2020.01); H05B 45/50 (2022.01); H05B 47/26 (2020.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01)
CPC F21V 25/04 (2013.01) [F21K 9/272 (2016.08); F21K 9/278 (2016.08); H05B 45/10 (2020.01); H05B 45/382 (2020.01); H05B 45/56 (2020.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08); Y02B 20/30 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A tube LED lamp realised to replace a fluorescent tube lamp, which tube LED lamp comprises
a tube containing an LED arrangement with a number of LEDs;
a connector arrangement with connectors realized for insertion into sockets of a socket arrangement of a tube lamp housing incorporating a dimming ballast;
a driver circuit arrangement for driving the LED arrangement, which driver circuit arrangement is realized to output an LED current on the basis of an AC input current provided by the dimming ballast; and
a safety switch arranged within the tube to electrically isolate connectors of the connector arrangement, wherein the safety switch is arranged between the driver circuit arrangement and the LED arrangement and only conducts a DC current when the safety switch is closed; and
a protection circuit module realized to disconnect the LED driver from the LED arrangement in the event of an excessive lamp temperature and/or an excessive lamp current and/or an excessive lamp voltage.