Overtemperature protection circuit having plural thermal...

Details Overtemperature protection circuit having plural thermal... Overtemperature protection circuit having plural thermal...

H - Electricity

02

H

H02H 5/04 (2006.01) H05B 39/04 (2006.01) H05B 41/14 (2006.01) H05K 1/02 (2006.01)

Patent

CA 2201412

A circuit arrangement for operating electrical lamps has a temperature sensor (NTC) as component part of an overtemperature protection circuit and at least one additional thermal component, which has flowing through it in the event of an overload a current which is increased compared with normal operation, and is thereby heated. The thermal component, for example one or more heating resistors (R5-R8), is coupled in a thermal manner to the temperature sensor (NTC), as a result of which the overtemperature protection circuit is consequently also triggered in the event of an overload.

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