AC Generator
First Claim
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1. An AC generator comprising:
- a stator coil;
a pole core, comprising a permanent magnet for creating a magnetic field which produces an output voltage in the stator coil;
a reverse field coil disposed to reduce the magnetic field when a field current flows therethrough; and
a voltage regulator responsively connected to the stator coil and connected to the reverse field coil, the voltage regulator having means in series with the reverse field coil for permitting the field current flow through the reverse field coil only when the output voltage is above a predetermined value.
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Abstract
This invention relates an AC generator comprising a stator coil, a field coil, a pole core for inducing an output voltage to the stator coil, and a voltage regulator for controlling the output voltage. The field coil is wound in either of such directions as to reduce or increase the magnetic flux formed by the pole core. The voltage regulator controls the output voltage to a predetermined value by passing or breaking the current to the field coil. The voltage regulator thus operates to disconnect the field coil when the output voltage is not within a specified range.
15 Citations
6 Claims
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1. An AC generator comprising:
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a stator coil; a pole core, comprising a permanent magnet for creating a magnetic field which produces an output voltage in the stator coil; a reverse field coil disposed to reduce the magnetic field when a field current flows therethrough; and a voltage regulator responsively connected to the stator coil and connected to the reverse field coil, the voltage regulator having means in series with the reverse field coil for permitting the field current flow through the reverse field coil only when the output voltage is above a predetermined value. - View Dependent Claims (2, 3, 4)
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5. A voltage regulator for regulating the output voltage of an AC generator, the AC generator having a reverse field coil, comprising:
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means for dividing the output voltage; means connected to the dividing means for conducting a control current from the dividing means only when the divided output voltage exceeds a predetermined threshold value; and means responsively connected to the conducting means and connected in series with the field coil for permitting a field current to pass through the reverse field coil only when the control current flows through the conducting means. - View Dependent Claims (6)
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Specification