A surge suppressor arranged for suppressing surges, a driver comprising a surge suppressor as well as a method for operating the surge suppressor
AssigneeSignify Holding B.V.
InventorJOHANNES PETRUS WERNARS
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Abstract
A surge suppressor, comprising a Metal Oxide Varistor, MOV, connected to a current-conductive track and arranged for suppressing surges present on said current-conductive track, a temperature dependent component thermally coupled to said current-conductive track, wherein an electrical parameter of said temperature dependent component is dependent on temperature, control means arranged for providing a quantitative measure of a lifespan of said MOV based on fluctuations of said electrical parameter over time.
Claims14
A surge suppressor, comprising:
- a current-conductive track;
- a Metal Oxide Varistor (MOV) connected to said current-conductive track and arranged for suppressing surges present on said current-conductive track;
- a temperature dependent component thermally coupled to said current-conductive track, wherein an electrical parameter of said temperature dependent component is dependent on a temperature of said current-conductive track;
- and
- control means arranged for providing a quantitative measure of a lifespan of said MOV based on fluctuations of said electrical parameter over time.
The surge suppressor according to 1, wherein said temperature dependent component has a positive temperature coefficient.
The surge suppressor according to 1, wherein said current-conductive track is a Printed Circuit Board (PCB) track and wherein said temperature dependent component is a Surface Mounted Device, SMD mounted on top of said PCB track.
The surge suppressor according to 1, wherein said temperature dependent component wherein a resistance value of said temperature dependent component is dependent on temperature.
A method of operating a surge suppressor, said method comprising the steps of:
- suppressing an electrical surge, by a Metal Oxide Varistor (MOV) connected to said current-conductive track;
- providing, by said temperature dependent component, said electrical parameter of said temperature dependent component to said control means;
- and
- providing, by said control means, said quantitative measure of said lifespan of said MOV based on fluctuations of said electrical parameter over time.
Dependencies are inferred from the claim text.