| 摘要 |
The invention relates to a method for operating LEDs (13), comprising a driver module (10) and an LED module (11) having at least one LED (13), which LED module (11) is controlled by the driver module (10), wherein the driver module (10) has a first connection (1), which is designed to feed the LED module (11) with a current, and has a second connection (2) is present as earth connection (GND), wherein the LED module (11) is fed with a current by the driver module (10) via a first connection (1) and a second connection (2) is present as earth connection (GND), characterized in that the driver module (10) temporarily lowers the voltage at the first connection (1) and monitors the voltage at the first connection (1) and is designed to evaluate a change in the voltage at said connection as a transfer of information from the LED module (11). |
| 主权项 |
1. A device for operating light emitting diodes (LEDs) (13), comprising
a driver module and an LED module (11) having at least one LED (13), said LED module being driven by the driver module, wherein the driver module (10) has a first terminal (1), which is designed for feeding the LED module (11) with a current, and a second terminal (2) as a ground connection (GND), wherein the LED module (11) is fed with a current by the driver module (10) via the first terminal (1) and the second terminal (2) is present as a ground connection (GND), wherein the driver module (10) temporarily reduces a voltage at the first terminal (1) and monitors the voltage at the first terminal (1), and is designed to evaluate a change in the voltage at said first terminal (1) as transfer of information from the LED module (11), and wherein a dummy load is arranged on the LED module (11), said dummy load being connected to the first terminal (1), wherein this dummy load loads the first terminal (1) when the reduced voltage is present and this loading can be evaluated by the driver module (10) as information from the LED module (11), the driver module (10) is configured to be able to receive both analog information, on account of the loading with a dummy load, and digital information, by means of pulse width modulated signals, from the LED module (11). |
