Circuit arrangement with a light sensor which controls a light-controlled, electronic control device in a motor vehicle

摘要

A circuit arrangement is proposed with a single light sensor which has at least one light-sensitive sensor element, for the purpose of controlling at least two electronic control devices (13, 16, 20, 23) which are connected to this single light sensor (10), at least one of these control devices (13, 23) being controlled by the radiation of the sun. Such light-controlled, electronic control devices are for example an infrared-controlled alarm system, an infrared-controlled central locking system, a brightness-controlled lighting system for a dashboard of a vehicle, an air-conditioning system or the like which is controlled as a function of the degree of solar radiation. By using a single light sensor (10), costs can be reduced and fitting can be simplified and as a result additional functions such as e.g. a controlled lighting of a dashboard can be realised.