Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1997-10-30
1999-10-26
Berhane, Adolf Deneke
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363131, H02M 3335
Patent
active
059739401
ABSTRACT:
The switched-mode power supply comprises a secondary winding and four diodes for producing two rectified voltages of the same polarity, one of which can be regulated. A connection of the unregulated voltage has connected to it a variable Zener diode as an error amplifier for transmitting a regulating signal to the primary side. The driver stage provides a pulse-width-modulated square-wave signal for driving the switching transistor which is arranged at a high potential between the operating voltage on the input side and a first connection of the primary winding. The second connection of the primary winding is connected with a Zener diode and provides a stabilized voltage for the driver stage. Arranged between the driver stage and the control electrode of the switching transistor there is a differentiating element which produces positive and negative switching voltages for controlling the switching transistor.
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Rehm Markus
Riesle Thomas
Rilly Gerard
Rodriguez-Duran Jose I.
Berhane Adolf Deneke
Deutsche Thomson-Brandt GmbH
Kolodka Joseph J.
Tripoli Joseph S.
Wein Frederick A.
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