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V2.1
THEORY OF OPERATION
L1 and L2 of the single-phase input pass directly through the phase converter to provide
two legs of the three-phase output. The input module charges a DC bus from the input
lines. The output module uses power from the DC bus to generate the third leg of the three-
phase output. The third leg is generated to limit voltage imbalance between the three legs
to ≤ 2%. Voltage imbalance is calculated according to the NEMA MG1 standard.
Where:
Block Diagram
The diagram in Figure 1 illustrates the basic design schematic of the Phase Perfect Digital
Phase Converter.
Figure 1 – Phase Perfect Digital Phase Converter Schematic
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