Electricity: single generator systems – Automatic control of generator or driving means – Speed or frequency of generator
Reexamination Certificate
2006-07-04
2006-07-04
Gonzalez R., Julio C. (Department: 2834)
Electricity: single generator systems
Automatic control of generator or driving means
Speed or frequency of generator
C322S006000, C322S078000, C310S166000, C310S174000, C310S171000
Reexamination Certificate
active
07071657
ABSTRACT:
A single-pole type generator with low loss magnetic core is excited by a field coil that is part of a low loss series resonant circuit tuned to a desired AC power frequency, which may be frequencies such as 50 Hz or 60 Hz or 400 Hz. The series resonant circuit is excited at the resonant frequency. The resulting resonant behavior of the excitation circuit automatically provides the high driving voltages and sinusoidal energy storage patterns needed to efficiently modulate the magnetic field at the desired power frequency. This modulation of the excitation field is amplified by mechanical power from a rotating shaft and modulates the output current and voltage of a single phase output circuit of the single-pole type generator at that power frequency in a sinusoidal pattern thus delivering alternating current power without any requirement for further electronic rectification, commutation or processing. Design considerations critical to the implementation of a practical single-pole type generator suitable for this application are disclosed.
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Tupper Christopher N.
Wood Duncan G.
Caseiro Chris A.
Gonzalez R. Julio C.
Raven Technology, LLC
Verrill & Dana, LLP
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