Signal generator module for dimming of a luminaire
The invention relates to a signal generator module, comprising: input terminals for supplying a low-DC voltage from a LED driver, an interface for manually or electronically supplying a signal generator control command, a circuitry for generating a digital output signal preferably with a mains frequency during a defined state of the signal generator control command, and output terminals configured to supply the digital output signal to at least one input terminal of the LED driver.
1 . A signal generator module ( 101 ), comprising:
input terminals ( 102 ) for supplying a low-DC voltage from a LED driver ( 106 );
an interface ( 103 ) designed for manually or electronically supplying a signal generator control command;
a circuitry ( 104 ) for generating a cyclic digital output signal with a mains frequency during a defined state of the signal generator control command; and
output terminals ( 105 ) configured to supply the cyclic digital output signal to at least one input terminal of the LED driver ( 106 ).
2 . The signal generator module ( 101 ) according to claim 1 , wherein the input terminals ( 102 ) of the signal generator module are the same as the output terminals ( 105 ) of the signal generator module ( 101 ).
3 . The signal generator module ( 101 ) according to claim 1 , wherein the input terminals ( 102 ) of the signal generator module ( 101 ) are different from the output terminals ( 105 ) of the signal generator module ( 101 ).
4 . The signal generator module ( 101 ) according to claim 1 , wherein the interface ( 103 ) is a manually operated button or switch.
5 . The signal generator module ( 101 ) of claim 4 , wherein, during an operation of the button, an impulse sequence is generated which comprises two discrete states.
6 . The signal generator module ( 101 ) according to claim 1 , wherein the low-DC voltage is a voltage from DALI bus terminals of the LED driver ( 106 ).
7 . The signal generator module ( 101 ) according to claim 1 , wherein the circuitry ( 104 ) comprises a buffer circuit configured to supply the circuitry ( 104 ) with energy.
8 . The signal generator module ( 101 ) according to claim 7 , wherein the buffer circuit comprises a capacitor.
9 . The signal generator module ( 101 ) according to claim 1 , wherein the circuitry ( 104 ) comprises a time module, wherein a frequency of the time module is determined by a resistor divider and a capacitor.
10 . A system ( 100 ) comprising the signal generator module ( 101 ) according to claim 1 connected to the LED driver ( 106 ).
11 . The system ( 100 ) of claim 10 , wherein the LED driver ( 106 ) is configured to adapt at least one operation parameter of an LED module ( 107 ) as a function of the cyclic digital output signal of the signal generator module ( 101 ).
12 . A method ( 700 ) for dimming of a luminaire ( 109 ), comprising:
supplying ( 701 ) a low-DC voltage from a LED driver ( 106 );
manually or electronically supplying ( 702 ) a signal generator control command from an interface ( 103 );
generating ( 703 ) a digital output signal with a mains frequency during a defined state of a signal generator control command by means of a circuitry ( 104 ); and
supplying ( 704 ) the digital output signal to at least one input terminal of the LED driver ( 106 ).