Abstract: A device for controlling a plurality of electrical consumers to which a constant control current is applied at control nodes. A transformer to which a regulated and/or constant predetermined frequency current is applied at the input end has at least one first and a second winding at the output end which have a common tap, first and second circuit branches forming first and second control nodes for first and second electrical consumers are associated with the first and second windings respectively. The first and second circuit branches each have a magnetically interacting pair of reactors which are wound in opposite relative directions. The first and second reactors of the pair are connected to the first and second control nodes, respectively, via a rectifier. The reactors that are connected to one of the control nodes are oppositely wound. Reactors pairs are magnetically coupled, in particular having a common reactor core.

Abstract: An LED power supply device includes a power supply to control an LED component, a control unit (with control interface) to control the power supply, and a voltage supply unit connected to a connection of the power supply. the control unit receives operating voltage from the voltage supply unit for continuous operation in an activated and non-activated control state of the LED component, and the voltage supply unit uses a capacitor coupled to an output side of the power supply to supply a capacitor voltage as operating voltage to the LED power supply device. The control unit is configured to charge the capacitor using pulse-like control of the power supply such that, in the non-activated control state, the maximum charging voltage lies below the LED threshold voltage.

Abstract: The invention relates to a dimmable, multi-channel voltage/current source (47) with several outputs (CH1, CH2) for connecting an electrical load (10, 20), which provides a regulated direct current (I1, I2) at every output (CH1, CH2). The voltage source (47) comprises, for every output (CH1, CH2), a first dimming device (3), with which part of the current (I1?, I2?) flowing to the output (CH1, CH2) can be conducted to a reference potential (GND) and which in each case comprises a switch (17, 27) that is controlled by a first PWM signal, and a second dimming device (4) with a second switch (12, 22) that is arranged in series to the electrical load (10, 20) and which is controlled by a second PWM signal (open1, open2).

Abstract: Switched-mode power supply device having an input for receiving an AC voltage input signal, an output for providing a DC voltage signal and/or a direct-current signal to a downstream consumer, a transformer having a primary winding and a secondary winding, and resonant converter means assigned to the primary side of the transformer, which resonant converter means form an LLC topology with inclusion of the primary winding and can be actuated with a variable-frequency control signal on the primary side by means of a control unit, wherein the control unit, which is realized by means of an integrated and/or programmable circuit component, generates the control signal in reaction to and as a function of a zero-crossing detection signal generated from the AC voltage input signal, a current flowing in the transformer windings, in particular on the secondary side, and a constant and/or predeterminable preset signal for an output current flowing at the output, in such a way that regulating means associated with the co

Abstract: Switched-mode power supply device having an input for receiving an AC voltage input signal, an output for providing a DC voltage signal and/or a direct-current signal to a downstream consumer, a transformer having a primary winding and a secondary winding, and resonant converter means assigned to the primary side of the transformer, which resonant converter means form an LLC topology with inclusion of the primary winding and can be actuated with a variable-frequency control signal on the primary side by means of a control unit, wherein the control unit, which is realized by means of an integrated and/or programmable circuit component, generates the control signal in reaction to and as a function of a zero-crossing detection signal generated from the AC voltage input signal, a current flowing in the transformer windings, in particular on the secondary side, and a constant and/or predeterminable preset signal for an output current flowing at the output, in such a way that regulating means associated with the co

Abstract: An inductive electronic module, comprising a core element having an inner limb (12; 29a) and at least two lateral limbs (14, 16; 33a, 35a; 37a, 39a) associated the inner limb on both sides, the core element being provided with windings (N1, N2, N3, N4) for forming a transformer. A first winding (N1, N2: 47, 49; 51, 53) is implemented as a series connection composed of two partial windings. A first partial winding is formed on a first lateral limb, and a second partial winding is formed on a second lateral limb.

Abstract: The invention relates to a dimmable, multi-channel voltage/current source (47) with several outputs (CH1, CH2) for connecting an electrical load (10, 20), which provides a regulated direct current (I1, I2) at every output (CH1, CH2). The voltage source (47) comprises, for every output (CH1, CH2), a first dimming device (3), with which part of the current (I1?, I2?) flowing to the output (CH1, CH2) can be conducted to a reference potential (GND) and which in each case comprises a switch (17, 27) that is controlled by a first PWM signal, and a second dimming device (4) with a second switch (12, 22) that is arranged in series to the electrical load (10, 20) and which is controlled by a second PWM signal (open1, open2).

Abstract: An inductive electronic module comprises a planar core element having an inner limb and at least two lateral limbs, to which winding arrangements are assigned for forming a transformer. First and second partial windings are formed on first and second of the lateral limbs such that a resulting magnetic flux of the first planar winding arrangement is cancelled in the inner limb and the second planar winding arrangement is magnetically decoupled from the first planar winding arrangement on the inner limb. The inner limb has a first core section for interacting with the second planar winding arrangement and a second core section spaced from the first core section on the core element. The second core section interacts with an additional planar winding arrangement, which forms a series connection with the second planar winding arrangement. The second core section implements a magnetically active air gap for the additional planar winding arrangement.

Abstract: An inductive electronic module comprises a planar core element having an inner limb and at least two lateral limbs, to which winding arrangements are assigned for forming a transformer. First and second partial windings are formed on first and second of the lateral limbs such that a resulting magnetic flux of the first planar winding arrangement is cancelled in the inner limb and the second planar winding arrangement is magnetically decoupled from the first planar winding arrangement on the inner limb. The inner limb has a first core section for interacting with the second planar winding arrangement and a second core section spaced from the first core section on the core element. The second core section interacts with an additional planar winding arrangement, which forms a series connection with the second planar winding arrangement. The second core section implements a magnetically active air gap for the additional planar winding arrangement.

Abstract: An LED power supply device may include a power supply to control an LED component, a control unit to control the power supply, the control unit having a control interface for applying external control signals to the power supply, and a voltage supply unit connected to a connection of the power supply, wherein the control unit receives operating voltage from the voltage supply unit for continuous operation in an activated and non-activated control state of the LED component, wherein the voltage supply unit comprises a capacitor coupled to an output side of the power supply, the capacitor configured to supply a capacitor voltage as operating voltage to the LED power supply device, and wherein the control unit is configured to charge the capacitor using pulse-like control of the power supply such that, in the non-activated control state, a maximum charging voltage lies below the LED threshold voltage.

Abstract: A power supply unit with a dimming function which is adapted for a light emitting apparatus including a power system is provided. The power supply unit includes at least one output channel, a power stage, a detecting unit, and a micro controller unit (MCU). The power stage receives a first output of the power system and provides a first signal. The detecting unit detects a second output of the power system and provides a second signal. The MCU receives the first signal and the second signal, controls the at least one output channel, and is programmed to set a dimming ratio for the at least one output channel according to the first signal and the second signal. Furthermore, a light emitting apparatus and a dimming method are also provided.

Abstract: A device for controlling a plurality of electrical consumers to which a constant control current is applied at control nodes. A transformer unit to which a regulated and/or constant current having a predetermined frequency is applied at the input end comprises at least one first and a second winding at the output end which have a common tap, a first circuit branch forming a first control node for a first electrical consumer is associated with the first winding, and a second circuit branch forming a second control node for a second electrical consumer is associated with the second winding. Furthermore, the first and the second circuit branch each have a magnetically interacting pair of reactors which are wound in opposite directions relative to each other, and a first reactor of said pair is connected to the first control node via rectifying means, while a second reactor of the same pair is connected to the second control node via rectifying means.

Abstract: An inductive electronic module, comprising a core element having an inner limb (12; 29a) and at least two lateral limbs (14, 16; 33a, 35a; 37a, 39a) associated the inner limb on both sides, the core element being provided with windings (N1, N2, N3, N4) for forming a transformer. A first winding (N1, N2: 47, 49; 51, 53) is implemented as a series connection composed of two partial windings. A first partial winding is formed on a first lateral limb, and a second partial winding is formed on a second lateral limb.

Abstract: A power supply unit with a dimming function which is adapted for a light emitting apparatus including a power system is provided. The power supply unit includes at least one output channel, a power stage, a detecting unit, and a micro controller unit (MCU). The power stage receives a first output of the power system and provides a first signal. The detecting unit detects a second output of the power system and provides a second signal. The MCU receives the first signal and the second signal, controls the at least one output channel, and is programmed to set a dimming ratio for the at least one output channel according to the first signal and the second signal. Furthermore, a light emitting apparatus and a dimming method are also provided.

Abstract: The present invention relates in general to the pseudotyping of retroviruses with lymphocytic choriomeningitis virus. In particular, the invention relates to pseudotyping in MLV packaging cells which are optionally env-deleted, or in packaging cells derived from lentiviruses. Preferably, pseudotyping takes place by infection with LCMV or a preferably env-deleted mutant, or by transfection with an expression plasmid containing the gp gene of LCMV or a part thereof and optionally, in addition, the np, l and/or the z gene of LCMV. The invention also relates to the use of such pseudotypes for the infection of cells, particularly the use in gene therapy.

Abstract: The present invention relates in general to the pseudotyping of retroviruses with lymphocytic choriomeningitis virus. In particular, the invention relates to pseudotyping in MLV packaging cells which are optionally env-deleted, or in packaging cells derived from lentiviruses. Preferably, pseudotyping takes place by infection with LCMV or a preferably env-deleted mutant, or by transfection with an expression plasmid containing the gp gene of LCMV or a part thereof and optionally, in addition, the np, 1 and/or the z gene of LCMV. The invention also relates to the use of such pseudotypes for the infection of cells, particularly the use in gene therapy.