Electricity: single generator systems – Generator control – With excitation winding and/or circuit control
Reexamination Certificate
2007-07-17
2007-07-17
Schuberg, Darren (Department: 2834)
Electricity: single generator systems
Generator control
With excitation winding and/or circuit control
C322S075000, C322S089000, C322S095000
Reexamination Certificate
active
11363261
ABSTRACT:
There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy. The positive feedback circuit is further responsive to the dissipation of the quantity of stored magnetic energy such that a rate of dissipation increases until the quantity of stored magnetic energy substantially reduces to an ineffective amount.
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Allyn Neil Garfield
Moreau Terry
Velhner Aleks
Cameron Norman M
Mohandesi Iraj A.
Schuberg Darren
Teleflex Canada Incorporated
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