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The Warsaw Rectifier is a pulse-width modulation rectifier, invented in 1992 by Włodzimierz Koczara.
Topology
The Warsaw Rectifier is a unidirectional three-phase three-switch two-level Pulse-width modulation (PWM) rectifier. In this topology three transistors and eighteen diodes are used. Bidirectional switches (made as four diodes and one transistor cicruit) are connected in delta topology.
The main advantages of this topology:
References
Warsaw rectifier Wikipedia(Text) CC BY-SA