Abstract: An electrical device, particularly having at least one lighting system having light emitting diodes, such as a television having LED backlighting (57), which has a stand-by mode (ZPM) with very low power consumption in which only one control unit (3) is supplied with power via a capacitive voltage divider. For this purpose, alongside parts of the power supply unit (2), the interference suppression capacitor (6) is also switched off.

Abstract: An electrical device having at least one interference suppression capacitor (6, 60) that is actively discharged when there is an interruption to the mains voltage (7) by connecting an electrical load (69) in parallel. For this purpose, the device has a monitor for the mains voltage (7) and means for connecting (68) the electrical load.

Abstract: A control circuit (1) for light emitting diode arrangements (11), used particularly for backlighting LC flat screens. The circuit has a plurality of control channels (5, 5?) in each of which one or more light emitting diode arrangements (11) are disposed. The circuit has a balancing device (23) which allows currents in the individual control channels (5, 5?) to be balanced. Each control channel (5, 5?) has a separate dimming device (13) through which a brightness of the light emitting diode arrangements (11) in this control channel (5, 5?) can be changed separately from the other control channels (5, 5?). For this purpose, the control circuit has a compensation device (16) which allows a flow of current in the individual control channels (5, 5?) to be balanced when the light emitting diodes have different brightnesses.

Abstract: A method and a device for controlling gas discharge lamps using a direct current/alternating current inverter (DC/AC inverter) that is operated at a predetermined frequency and that generates an AC output voltage U for operating the gas discharge lamps from a DC input voltage which has a residual ripple. The DC/AC inverter is operated in zero voltage switching (ZVS) mode, wherein the DC input voltage is used as the control variable for the lamp current IL, wherein fluctuations in the lamp current IL caused by the residual ripple of the DC input voltage are compensated by a variation in the switch-on times and/or switch-off times of the switching elements QH, QL of the DC/AC inverter.

Abstract: The invention describes an electrical device having at least one interference suppression capacitor (6, 60) that is actively discharged when there is an interruption to the mains voltage (7) by connecting an electrical load (69) in parallel. For this purpose, the device has means for monitoring the mains voltage (7) and means for connecting (68) the electrical load.

Abstract: An electrical device, particularly having at least one lighting system having light emitting diodes, such as a television having LED backlighting (57), which has a stand-by mode (ZPM) with very low power consumption in which only one control unit (3) is supplied with power via a capacitive voltage divider. For this purpose, alongside parts of the power supply unit (2), the interference suppression capacitor (6) is also switched off.

Abstract: A control circuit (1) for light emitting diode arrangements (11), used particularly for backlighting LC flat screens. The circuit has a plurality of control channels (5, 5?) in each of which one or more light emitting diode arrangements (11) are disposed. The circuit has a balancing device (23) which allows currents in the individual control channels (5, 5?) to be balanced. Each control channel (5, 5?) has a separate dimming device (13) through which a brightness of the light emitting diode arrangements (11) in this control channel (5, 5?) can be changed separately from the other control channels (5, 5?). For this purpose, the control circuit has a compensation device (16) which allows a flow of current in the individual control channels (5, 5?) to be balanced when the light emitting diodes have different brightnesses.

Abstract: A transformer (1) for balancing the current in several channels, having a primary winding (Wp) and at least two secondary windings (Ws). The transformer (1) has a plurality of closed transformer cores (2) on each of which a secondary winding (Ws) is disposed. The primary winding (Wp) encloses all transformer cores (2). The primary and the secondary windings are preferably disposed opposite each other on the transformer core (2). Current balancing is effected through changes in flux in the secondary windings (Ws) and a primary flux response.

Abstract: An interposer (20) is used for decoupling a microchip (10) on a circuit board (30). The interposer (20) contains on its upper and lower surfaces structured metal layers (26a-26d) for attachment to the microchip (10) and the circuit board (30), respectively. Inside the interposer, there are two sets of mutually isolated metal structures (21, 22) extending substantially perpendicular to the upper and lower surfaces of said interposer (20). The first set (21) extends closer towards the upper surface than the second set (22), while said second set (22) extends closer towards the lower surface than said first set (21).

Abstract: A multi-function switch module which rotates along with a steering wheel of an automotive vehicle is arranged between the spokes of the steering wheel and includes a quadruple switching rocker and at least one pull button.

Abstract: The invention relates to a method and a device for controlling gas discharge lamps using a direct current/alternating current inverter (DC/AC inverter) that is operated at a predetermined frequency and that generates an AC output voltage U for operating the gas discharge lamps from a DC input voltage which has a residual ripple. According to the invention, the DC/AC inverter is operated in zero voltage switching (ZVS) mode, wherein the DC input voltage is used as the control variable for the lamp current IL, wherein fluctuations in the lamp current IL caused by the residual ripple of the DC input voltage are compensated by a variation in the switch-on times and/or switch-off times of the switching elements QH, QL of the DC/AC inverter.

Abstract: The disclosure relates to a display and operator control system in a motor vehicle, including a display panel and an operator control panel with operator control keys and function keys. The display panel is electronically coupled to the operator control panel and has roughly the same outer shape as the operator control panel. Representations of the control and function keys are displayed on the display panel in the same relative positions as the control and function keys are located on the operator control panel. Data input on the keypad of the control panel is displayed on an input panel on the display panel. The operator control panel also has an keypad for inputting of data, the data being shown in an input panel on the display panel. This provides intuitive operator control for the user.

Abstract: An interposer (20) is used for decoupling a microchip (10) on a circuit board (30). The interposer (20) contains on its upper and lower surfaces structured metal layers (26a-26d) for attachment to the microchip (10) and the circuit board (30), respectively. Inside the interposer, there are two sets of mutually isolated metal structures (21, 22) extending substantially perpendicular to the upper and lower surfaces of said interposer (20). The first set (21) extends closer towards the upper surface than the second set (22), while said second set (22) extends closer towards the lower surface than said first set (21).

Abstract: Abstract of the Disclosure The invention relates to a power supply device having several switch-mode power supplies connected in parallel to supply at least one consuming unit, each switch-mode power supply generating an output current I0 and an output voltage U0(I0, RL) that is a function of the output current I0 and a load resistance RL, and having a control device for each switch-mode power supply, the control device having a first stage with a P element (54) that receives a P element input voltage which is derived from the output voltage U0(I0, RL), and generates a P element control voltage UVS, that is used to control the respective switch-mode power supply, the first stage being active when 0 ? I0 ? I0P, a second stage having a current reproduction circuit which reproduces the output current I0 of the respective switch-mode power supply and generates an output current control voltage UP which is used to control the respective switch-mode power supply, the second stage being active when I0P ? I0 ? I0S, a

Abstract: The invention relates to a device for treating wire material, comprising at least one station consisting of two disc-shaped substrates. The surfaces of said substrates face each other and overlap, clamping the wire material with a changing surface condition. The substrate surfaces (C1, C2) overlap except for at least one visual inspection zone (K), which remains exposed for viewing on at least one substrate surface (C1) and likewise makes contact with the wire material (D). The surface condition of said zone is essentially the same as the wire contact area (F) of the overlapped remainder of said substrate surface (C1).

Abstract: A multi-layer circuit board has blind holes, which are coated with a metal layer and with a conducting finish protection. The blind hole is first drilled as a through-hole through a pre-fitted sub-set of circuit board layers and coated before the remaining layers of the board are fitted together by thermo-compression. An outer layer buries the hole during further processing steps and is only opened after such further processing steps are finished. The metal coating does thus not extend to the surface but only through the sub-set of circuit board layers. The blind-hole thus created is suitable for inserting press-fit connectors.

Abstract: The invention relates to a stream nozzle (13) for an inert gas welding torch (B). The inventive nozzle is provided with a coating (S) that adheres to at least a part of the surface of said nozzle in a material fit and consists of silver, especially galvanically mounted contact silver.

Abstract: The invention relates to a stream nozzle (13) for an inert gas welding torch (B). The inventive nozzle is provided with a coating (S) that adheres to at least a part of the surface of said nozzle in a material fit and consists of silver, especially galvanically mounted contact silver.

Abstract: In a method for the production of multilayer High Density Interconnect (HDI) circuit boards, orientation points for the individual layers are arranged on an assembly frame outside the actual circuit board and a further orientation point is arranged on the actual circuit board as an origin for all layers. Thus smaller tolerances can be realized in production.

Abstract: An electrode arrangement for the cells of batteries includes two electrodes each having a three-dimensional grid-type structure, which are held spaced apart from one another. The electrodes are arranged interleaved with one another in all directions in space.