Abstract: A load driver for driving a load and an LED module are disclosed. In one embodiment, the load driver comprises a converter circuit comprising a controllable switching element configured to be turned on and off and to perform power factor correction for power from a power supply to the load, wherein a control terminal of the controllable switching element is configured for receiving a startup current via the two output terminals, the controllable switching element configured to be turned on by the startup current. The converter circuit further comprises a first inductor, coupled to the power supply at a first end, and to ground at a second end via the controllable switching element, wherein a first one of the output terminals connects to a second end of the first inductor via a diode forwarded from the first inductor, a second one of the output terminals is coupled to the first end of the first inductor.

Abstract: Driver (1) for driving a load (L), the driver having BiFRED topology and comprising: —a first input terminal (5) and a second input terminal (6); a pair of output terminals (9a, 9b) for connecting the load; —a Bi FRED converter coupled to the input terminals, comprising: —a first inductor (L1), coupled to a first input terminal (5); —a first capacitor (C1) in series connection with the first inductor; —a controllable switch (S1) between the interconnection of the first inductor and the first capacitor and the second input terminal (6); —a second inductor (L2) coupled between the first capacitor and the second input terminal; —a control device (20; 30)for controlling the controllable switch (S1); wherein said control device (20; 30) comprises: —a first sensing element (21) for sensing the current through said switch (S1) and providing a first output signal proportional to said current, said current being the sum of the charging current of the first inductor (L1) and discharging current of the first capacitor (

Abstract: A solid state lighting module is disclosed. In one example, the module comprises a light source and a resistor circuit, wherein an output resistance of the resistor circuit is for conveying to a connected driver information on a desired power to be applied to the solid state light source. A control interface is provided for receiving configuration information from an external configuration device and a control circuit configures the resistor circuit thereby to set the output resistance in response to received configuration information. This approach involves integrating the configuration function in the lighting module instead of in the driver. The output resistance can be determined by existing driver architectures without modification, while at the same time the ability of the user to tailor individual lighting modules to their needs is enabled.

Abstract: A switched mode power converter circuit, comprising: an energy storing inductor (L1) coupled to the power supply and being charged by said power supply or discharge to power a load; a power switch (Q1) adapted to switch on and off to set said energy storing inductor to be charged or discharge; a further inductor (L2) coupled between a current output terminal of the power switch and a ground terminal, the further inductor being magnetically coupled with the energy storing inductor, wherein the further inductor is configured to apply a positive feed to the power switch as the energy storing inductor begins to be charged, thereby accelerating a switching on of the power switch; a sensing resistor (R3) coupled in series with the further inductor between the current output terminal of the power switch and the ground terminal; and a capacitor (C4) coupled between a control terminal of the power switch and the ground terminal, and between the power supply and the ground terminal.

Abstract: Driver (1) for driving a load (L), the driver having BiFRED topology and comprising: —a first input terminal (5) and a second input terminal (6); a pair of output terminals (9a, 9b) for connecting the load; —a Bi FRED converter coupled to the input terminals, comprising: —a first inductor (L1), coupled to a first input terminal (5); —a first capacitor (C1) in series connection with of the first inductor; —a controllable switch (S1) between the interconnection of the first inductor and the first capacitor and the second input terminal (6); —a second inductor (L2) coupled between the first capacitor and the second input terminal; —a control device (20; 30) for controlling the controllable switch (S1); wherein said control device (20; 30) comprises: —a first sensing element (21) for sensing the current through said switch (S1) and providing a first output signal proportional to said current, said current being the sum of the charging current of the first inductor (L1) and discharging current of the first capacit

Abstract: A solid state lighting module is disclosed. In one example, the module comprises a light source and a resistor circuit, wherein an output resistance of the resistor circuit is for conveying to a connected driver information on a desired power to be applied to the solid state light source. A control interface is provided for receiving configuration information from an external configuration device and a control circuit configures the resistor circuit thereby to set the output resistance in response to received configuration information. This approach involves integrating the configuration function in the lighting module instead of in the driver. The output resistance can be determined by existing driver architectures without modification, while at the same time the ability of the user to tailor individual lighting modules to their needs is enabled.

Abstract: A load driver for driving a load and an LED module are disclosed. In one embodiment, the load driver comprises a converter circuit comprising a controllable switching element configured to be turned on and off and to perform power factor correction for power from a power supply to the load, wherein a control terminal of the controllable switching element is configured for receiving a startup current via the two output terminals, the controllable switching element configured to be turned on by the startup current. The converter circuit further comprises a first inductor, coupled to the power supply at a first end, and to ground at a second end via the controllable switching element, wherein a first one of the output terminals connects to a second end of the first inductor via a diode forwarded from the first inductor, a second one of the output terminals is coupled to the first end of the first inductor.