Abstract: The disclosure relates to a driver for lighting means (100) comprising: input terminals (101a, 101b) for an optionally rectified AC voltage; output terminals (104a, 104b) for supplying a LED load (105), a detection circuitry (102) connected to the input terminals (101a, 101b), configured to obtain a signal representing a frequency of the AC voltage and an amplitude of the peak of each cycle of the AC voltage, and a control circuit (103) being connected to the detection circuitry (102) and supplied with said signal.

Abstract: A driver circuit is provided for lighting means, in particular for one or more LEDs, having an LLC circuit with an inverter which is clocked by means of at least two switches and is designed to supply a resonant circuit, wherein the resonant circuit is coupled to a primary winding of a transformer for transforming electrical energy from the primary winding to a secondary winding, and the lighting means can be supplied with current starting from the secondary winding, having a control unit which is designed to control the switch of the inverter after an activation of the driver circuit during a start phase, in such a way that after a single or after multiple alternating cycles of the switch, the cycling of the switch is suspended for the duration of at least one alternating cycling of the switch until a criterion for ending the start phase is satisfied.

Abstract: A driver circuit is provided for lighting means, in particular for one or more LEDs, having an LLC circuit with an inverter which is clocked by means of at least two switches and is designed to supply a resonant circuit, wherein the resonant circuit is coupled to a primary winding of a transformer for transforming electrical energy from the primary winding to a secondary winding, and the lighting means can be supplied with current starting from the secondary winding, having a control unit which is designed to control the switch of the inverter after an activation of the driver circuit during a start phase, in such a way that after a single or after multiple alternating cycles of the switch, the cycling of the switch is suspended for the duration of at least one alternating cycling of the switch until a criterion for ending the start phase is satisfied.

Abstract: The invention relates to a device for operating LEDs, comprising a driver module and an LED module (11), which is controlled by the driver module (10) and has at least one LED. The LED module (11) is fed a current by the driver module (10) via a first connection (1), and a second connection (2) is present, preferably as a ground connection (GND). The device is characterized in that the LED module (11) is connected to the driver module (10) by means of a third connection (3), which is designed as a data channel, a voltage fed by the driver module (10) being applied to the data channel.

Abstract: Exemplary embodiments represent an operating device (100) for a light-emitting means (12) with an interface (15) for the bidirectional data interchange with a control device (20), wherein the operating device (10) has an energy or power measuring device (25) for determining an energy or power consumption of the light-emitting means. In this case, the operating device (10) is designed to send information relating to the energy or power consumption to the control device (20) or is designed such that the information relating to the energy or power consumption is accessible to the control device (20).

Abstract: 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).

Abstract: 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), characterised 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).

Abstract: The invention relates to a device for operating LEDs, comprising a driver module and an LED module (11), which is controlled by the driver module (10) and has at least one LED. The LED module (11) is fed a current by the driver module (10) via a first connection (1), and a second connection (2) is present, preferably as a ground connection (GND). The device is characterised in that the LED module (11) is connected to the driver module (10) by means of a third connection (3), which is designed as a data channel, a voltage fed by the driver module (10) being applied to the data channel.

Abstract: The invention relates to a method for improving energy efficiency in a lighting system having at least one light source (3), wherein the light source (3) can be connected to an external electrical energy source, for example the grid, for power supply purposes via an operating device (2). In order to avoid standby losses which arise when the operating device (2) needs to be connected to the grid even in the inactive state in order to generate the necessary runup energy for a semiconductor IC (8) when a switch-on command arrives via the bus, it is proposed that additional electrical energy is recovered from the light from the light source (3) which is not used for lighting purposes or from the direct or indirect light from neighbouring luminaires (2); or from the ambient light by means of photovoltaic energy conversion and is supplied to the operating device as runup energy for the semiconductor IC (8). In this way, the operating device (2) can be isolated from the grid at least during the inactive state.

Abstract: The invention relates to a method for improving energy efficiency in a lighting system having at least one light source (3), wherein the light source (3) can be connected to an external electrical energy source, for example the grid, for power supply purposes via an operating device (2). In order to avoid standby losses which arise when the operating device (2) needs to be connected to the grid even in the inactive state in order to generate the necessary runup energy for a semiconductor IC (8) when a switch-on command arrives via the bus, it is proposed that additional electrical energy is recovered from the light from the light source (3) which is not used for lighting purposes or from the direct or indirect light from neighbouring luminaires (2); or from the ambient light by means of photovoltaic energy conversion and is supplied to the operating device as runup energy for the semiconductor IC (8). In this way, the operating device (2) can be isolated from the grid at least during the inactive state.

Abstract: Exemplary embodiments represent an operating device (100) for a light-emitting means (12) with an interface (15) for the bidirectional data interchange with a control device (20), wherein the operating device (10) has an energy or power measuring device (25) for determining an energy or power consumption of the light-emitting means. In this case, the operating device (10) is designed to send information relating to the energy or power consumption to the control device (20) or is designed such that the information relating to the energy or power consumption is accessible to the control device (20).