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Warsaw rectifier

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Warsaw rectifier

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:

  • Unity power factor
  • Three-wire input, no connection to neutral required
  • Simple control scheme
  • Low power losses

    • References

    Warsaw rectifier Wikipedia
    (Text) CC BY-SA