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Frequency and Voltage Scaling Design
Frequency and Voltage Scaling Design

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... • Voltage is lost into the earth return system and some PFE’s have a built-in variable resistance (slope resistance) to prevent instability between the two PFE’s that are working in “constant current” mode. This “slope resistance” needs to be understood and taken into account when calculating the di ...
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Metadyne



A metadyne is a direct current electrical machine with two pairs of brushes. It can be used as an amplifier or rotary transformer. It is similar to a third brush dynamo but has additional regulator or ""variator"" windings. It is also similar to an amplidyne except that the latter has a compensating winding which fully counteracts the effect of the flux produced by the load current. The technical description is ""a cross-field direct current machine designed to utilize armature reaction"". A metadyne can convert a constant-voltage input into a constant-current, variable-voltage output.
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