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 is provided comprising a Metal Oxide Varistor, MOV, connected to a current-conductive track and arranged for suppressing surges present on the current-conductive track. The surge suppressor includes a temperature dependent component thermally coupled to the current-conductive track. An electrical parameter of the temperature dependent component is dependent on temperature and control means is arranged for providing a quantitative measure of a lifespan of said MOV based on fluctuations of the 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;
- 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 in accordance with any of the previous claims, wherein said temperature dependent component is a thermal sensitive Surface Mounted Device, SMD.
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 a current-conductive track, present on said current-conductive track;
- providing, by a temperature dependent component, an electrical parameter of said temperature dependent component to control means, wherein the electrical parameter of said temperature dependent component is dependent on a temperature of said current-conductive track;
- and
- providing, by said control means, a quantitative measure of said lifespan of said MOV based on fluctuations of said electrical parameter over time.
Dependencies are inferred from the claim text.