公开(公告)号：EP0913072A1

公开(公告)日：1999-05-06

申请号：EP97940005.0

申请日：1997-07-17

申请人： Kovacs, Hermann

发明人： Kovacs, Hermann

IPC分类号： H05B39

CPC分类号： H05B39/085

摘要： A power supply control unit for a lamp that has luminous means (10) and an at least partially electroconductive lamp housing (12) comprises a first and a second line (P, N) by which a power supply signal can be applied to the luminous means (10) and which are insulated from the lamp housing (12). The electrical power to be applied to the luminous means (10) is switched or controlled by means of a switching device (18) in the first or second line (P, N). A control circuit (14) has an oscillator and an evaluation unit, the oscillator delivering to an output a signal that differs in frequency from the power supply signal and that is electrically coupled to the lamp housing (12). To control the switching device (18), the evaluation unit responds to frequency and/or amplitude changes of the oscillator signal brought about by contacting of the lamp housing. The at least partially electroconductive lamp housing is also connected to a device (22) that is also connected to a ground potential and represents a high impedance for the oscillator signal, whereas, relative to the high impedance, it constitutes a low impedance for the power supply signal.

公开(公告)号：EP1169887A1

公开(公告)日：2002-01-09

申请号：EP00926952.3

申请日：2000-04-14

申请人： Kovacs, Hermann

发明人： Kovacs, Hermann

IPC分类号： H05B37/02 ,  H05B39/04

CPC分类号： H05B39/086 ,  H05B39/041 ,  Y02B20/14

摘要： The invention relates to a device for adjusting the brightness of an illuminating means (58). Said device comprises an operation detection mechanism (50) for generating a detection signal, whereas a user (53) operates the operation detection mechanism (50). A brightness control mechanism which comprises a multitude of different setting modes (54, 56) of the illuminating means is provided for controlling the brightness of the illuminating means (58). In addition, the inventive device for adjusting the brightness of an illuminating means comprises a switching mechanism (52) which is provided for switching between the multitude of setting modes (54, 56) of the illuminating means in response to a progression of the detection signals. Said progression can be generated in a predetermined manner by an operation of the operation detection mechanism (50) effected by a user (53).