US Patent No. 10,117,301

SURGE PROTECTION FOR LIGHT-EMITTING DIODES


Patent No. 10,117,301
Issue Date October 30, 2018
Title Surge Protection For Light-emitting Diodes
Inventorship Yves Borlez, Huere-le-Roman (BE)
Assignee SCHREDER, Brussels (BE)

Claim of US Patent No. 10,117,301

1. A surge protection device configured to protect a luminaire, the luminaire including:a housing or casing;
a metal frame comprising the housing or casing and configured to be connected to ground;
at least one light-emitting diode module comprising a circuit board and a plurality of light-emitting elements mounted on the circuit board; and
at least one driver configured to transform mains voltage for said at least one light-emitting diode module, said at least one driver and said at least one light-emitting diode module being mounted on the metal frame with at least two electrically conductive connections between said at least one driver and said at least one light-emitting diode module associated therewith, wherein a first electrically conductive connection is to a (+) line of said at least one light-emitting diode module, and a second electrically conductive connection is to a (?) line of said at least one light-emitting diode module;
the surge protection device comprising at least one shunt impedance element for each of said first and second electrically conductive connections, wherein each of said shunt impedance elements is configured to be inserted across said metal frame and one of said first and second conductive connections to provide a direct return path via the metal frame to ground, said at least one shunt impedance element comprising at least one of: a capacitor, a resistor and a semiconductor-based component;
wherein the surge protection device further comprises at least one series impedance element positioned between said at least one driver and said at least one shunt impedance element.