Minebea Company, Limited

Em Microelectronic-marin Sa

Josef Fisch

Mykhaylo Raykhman

Yves Theoduloz

Manfred Schlenk

Fabien Maupas

Daniel N Luthi

Hans Hoffmann

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

Electric device having low power consumption in the stand-by state

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

Electric device having an interference suppression capacitor circuit

The invention provides a device for stabilizing an effective value of an output current of a converter. The device comprises the following:

Stabilization of an output current of a current supply

A DC power supply () having a series regulator () for generating a fixed output DC voltage (VCC) at a variable input AC voltage (VAC) with low power loss. For this purpose, the DC power supply () has a transformer () having at least two auxiliary windings (W, W) having different numbers of windings that can each be connected via a switching device () to the series regulator (). Switching is effected such that the power loss is kept as low as possible.

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Petersberg/Erdweg, Germany

Josef Fisch