Isolated power conversion with master controller in secondary

Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter

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363 97, H02M 3335

Patent

active

057576270

ABSTRACT:
An isolated power converter architecture in which controllers are used both on the primary side and also on the secondary side of the transformer. The controller on the secondary side is the master, and the controller on the primary side is a slave controller which has only limited functionality. Each controller controls at least one switching transistor. The controller on the primary side has a start-up mode in which it drives its transistor to apply a simple waveform which couples enough power through the transformer to permit the controller in the secondary to power up.

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