Rectifying circuit for a multiphase electric machine

Details Rectifying circuit for a multiphase electric machine Rectifying circuit for a multiphase electric machine

2009-09-03

2011-11-22

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S058000, C363S108000, C363S126000, C363S132000

Reexamination Certificate

active

08064227

ABSTRACT:
Cathode-anode voltage across free-wheeling diodes in an active rectifier is used in the determination of switching points when the free-wheeling diode is forward biased. Hysteretic switching is accomplished through the selection of conductive and non-conductive switching threshold. The switching thresholds are further selected to prevent voltage oscillations at zero current crossings and reduce delays during deactivation to prevent cross-conduction.

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