Weidmuller Interface Gmbh & Co. Kg

Weidmueller Interface Gmbh Co. Kg

Endress + Hauser Process Solutions Ag

Michael Buschkamp

Klaus Schürmann

Christian Tepper

Matthias Müller

Klaus Schuermann

Matthias Plöger

Klaus Korsten

Tobias Blome

The invention relates to a method for checking at least one field effect transistor () connected as an active diode, which is connected downstream of an output of a power supply unit () within a power supply device. The method comprises the following steps: The invention further relates to a power supply device having a power supply unit () downstream of which at least one field effect transistor () connected as an active diode is connected.

Power supply device and method for checking a field effect transistor of such a power supply device

A switched-mode power supply system and method for converting an input voltage into an output voltage, including at least one switching stage controlled by a pulse-width modulation circuit in a clocked manner, and a control circuit that influences a pulse-width modulation circuit to vary the level of the output voltage, characterized by the provision of a current limiting circuit which, after a threshold voltage has been exceeded, limits the power supply output current first to an elevated maximum current for a first period of time, and thereafter to a regular maximum current. The control circuit is such that the first period of time for which the output current is limited to the elevated maximum current is dependent on the level of the output current.

Power supply device and method for limiting an output current of a power supply device

An electrical distribution system includes a plurality of separate consumer modules for supplying power to a plurality of consumer loads, respectively. Each of the consumer modules includes an overload fault detection device for automatically interrupting the supply of power to a given consumer load upon the detection of a fault therein by an overload protection arrangement. When the voltage drop across a measuring resistor exceeds a given threshold value, a non-conducting transistor becomes conductive, thereby opening a gate circuit to disconnect the consumer load from its power supply. Resistors of varying resistance values may be selected manually or by remote control to correspond with the demand requirements of the consumer loads.

Modular connecting system for protecting an electrical load in a bus system

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Lage, Germany

Michael Buschkamp