Electronic ballast
First Claim
1. In combination with an electronic ballast for operating at least one lamp, having a connection arrangement, to which a light sensor can be connected for the purpose of monitoring the brightness of a specific physical area;
- a control arrangement which controls or regulates the brightness of said at least one lamp as a function of an actual brightness value received from a light sensor, said control arrangement being responsive to said electronic ballast being put into operation to indicate whether the light sensor is connected to the connection arrangement.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic ballast (EVG) is provided for operating at least one lamp (10), wherein a light sensor (20) for monitoring the brightness of a specific physical area (28) can be connected to the electronic ballast. A control arrangement (12) controls or regulates the brightness of the lamp (10) as a function of an actual brightness value delivered by the light sensor (20) and when the electronic ballast is put into operation automatically identifies whether a light sensor (20) is connected to the connection arrangement (18a, 18b). If no light sensor (20) is connected, the control or regulation of the brightness of the lamp (10) is effected as a function of externally supplied control information
33 Citations
34 Claims
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1. In combination with an electronic ballast for operating at least one lamp, having a connection arrangement, to which a light sensor can be connected for the purpose of monitoring the brightness of a specific physical area;
a control arrangement which controls or regulates the brightness of said at least one lamp as a function of an actual brightness value received from a light sensor, said control arrangement being responsive to said electronic ballast being put into operation to indicate whether the light sensor is connected to the connection arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
Specification