Amplifying rotary electrical machine operating at rapidly variab

Details Amplifying rotary electrical machine operating at rapidly variab Amplifying rotary electrical machine operating at rapidly variab

1977-10-25

1979-03-13

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310112, H02K 1100

Patent

active

041444680

ABSTRACT:
In a rotary electrical machine, in order to achieve an amplification effect with a high output level, the windings of a series of stators, aligned in front of a series of rotors, assembled upon one and the same axle, are connected to a common (earth) conductor across capacitors. In this fashion a filter made up of .pi.-cells is obtained, whose amplification factor vis-a-vis a signal injected at the input of the machine, between earth and a terminal, is given by: ##EQU1## THIS FOR A MACHINE COMPRISING N rotors and N stators between said input and output, at which the amplified signal is picked off. L.sub.s designates the self-inductance of a stator, C the capacitance of the capacitors, and R the negative resistance which appears in operation within the winding of said stator.

REFERENCES:
patent: 2608623 (1952-08-01), Cutler et al.
patent: 2706269 (1955-04-01), Kazan

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