Em Microelectronic-marin Sa

Minebea Company, Limited

Daniel N Luthi

Yves Theoduloz

Manfred Schlenk

Mykhaylo Raykhman

Fabien Maupas

Siegfried Kern

Hans Hoffmann

Josef Fisch

Steffen Schmid

Jean-Noel Divoux

Jean-Noël Divoux

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 present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on the primary side, the primary part of the converter being associated with a control circuit also arranged on the primary side and controlling the electrical energy flowing in the primary power path of the primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in the primary power path, the power supply unit entering a very low power mode ('Power-down' mode) when the first control signal is set to OFF so that the converter is not supplied anymore. The power management unit is arranged such that, in the very low power mode, it can receive or generate at least a wake-up signal and set to ON the first control signal in response to the wake-up signal for supplying again the primary and secondary parts of the converter.

Power supply unit having a voltage converter

The present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode ('Power-down' mode) when said first control signal is set to OFF so that the converter is not supplied anymore. The power management unit is arranged such that, in said very low power mode, it can receive or generate at least a wake-up signal and set to ON said first control signal in response to said wake-up signal for supplying again said primary and secondary parts of the converter.

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Winterthur, Switzerland

Daniel N Luthi