Electricity: motive power systems – Generator-fed motor systems having generator control
Reexamination Certificate
2006-05-02
2006-05-02
Fletcher, Marlon T. (Department: 2837)
Electricity: motive power systems
Generator-fed motor systems having generator control
C318S139000, C361S018000, C323S276000, C322S028000
Reexamination Certificate
active
07038406
ABSTRACT:
An H-bridge switching topology for bi-directional field excitation to null the effects of a rotor's permanent magnets uses both a low-side and a high-side field excitation driver to control the rotor's average field current. A standard proportional control signal for generators using uni-directional field excitation is used to control an H-bridge for bi-directional field excitation. The H-bridge consists of two pair of power switches. In a preferred embodiment, the switches are n-channel MOSFETs. A drive circuit interfaces a logic block with the H-bridge in order to properly bias the power switches.
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Freescale Semiconductor, Inc. □□Motorola “MCCF33095” or “MC33095” Integral Alternator Regulator□□www.freescale.com.
Colon Santana Eduardo
Dickinson Wright PLLC
Fletcher Marlon T.
Visteon Global Technologies Inc.
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