Alternator with parallel windings and regulator therefor
First Claim
1. For a permanent magnet alternator having a rotor with a plurality of permanent magnet poles for providing a magnetic field, a stator with a plurality of poles cooperating with said plurality of permanent magnet poles, and winding means for said stator comprising at least two sets of windings connected in parallel so that the rotation of said rotor relative to said stator provides a magnetic field-induced current in each of said sets of windings, and utilization means connected to said windings for receiving the additive output current of said sets of windings, a regulating circuit comprising:
- detecting means for detecting a predetermined electrical condition; and
circuit means including controlled conduction means associated with said detecting means for conducting in response to said predetermined electrical condition, said circuit means further including connecting means connected to said controlled conduction means and connecting said sets of windings in series so that said controlled conduction means connects a shunting path across the series connection of said sets of windings provided by said connecting means upon conduction of said controlled conduction means and so that the current through said shunting path is less than said additive output current of said sets of windings received by said utilization means.
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Accused Products
Abstract
Alternators are disclosed having plural sets of windings connected in parallel to reduce the cross section of the winding wire for a given output current level. The reduction in the cross section of the wire facilitates winding of the wire, and is believed to provide a more efficient alternator structure. Various shunt-type regulators are disclosed in combination with alternators having plural sets of windings which incorporate means for reducing the current through the shunt regulating circuit to reduce the current rating requirements of the regulating circuit switching elements.
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Citations
9 Claims
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1. For a permanent magnet alternator having a rotor with a plurality of permanent magnet poles for providing a magnetic field, a stator with a plurality of poles cooperating with said plurality of permanent magnet poles, and winding means for said stator comprising at least two sets of windings connected in parallel so that the rotation of said rotor relative to said stator provides a magnetic field-induced current in each of said sets of windings, and utilization means connected to said windings for receiving the additive output current of said sets of windings, a regulating circuit comprising:
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detecting means for detecting a predetermined electrical condition; and circuit means including controlled conduction means associated with said detecting means for conducting in response to said predetermined electrical condition, said circuit means further including connecting means connected to said controlled conduction means and connecting said sets of windings in series so that said controlled conduction means connects a shunting path across the series connection of said sets of windings provided by said connecting means upon conduction of said controlled conduction means and so that the current through said shunting path is less than said additive output current of said sets of windings received by said utilization means. - View Dependent Claims (2, 3, 4)
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5. For a permanent magnet alternator having a rotor with a plurality of permanent magnet poles for providing a magnetic field, a stator with a plurality of poles cooperating with said plurality of permanent magnet poles, and winding means for said stator comprising at least two sets of windings connected in parallel so that the rotation of said rotor relative to said stator provides a magnetic field-induced current in each of said sets of windings, and a battery connected to said windings for receiving the additive output current of said sets of windings, a regulating circuit comprising:
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detecting means for responding to the attainment of a predetermined level of charge of said battery; and circuit means including controlled conduction means associated with said detecting means for conducting in response to said predetermined level of charge of said battery, said circuit means further including connecting means connected to said controlled conduction means and connecting said sets of windings in series so that said controlled conduction means connects a shunting path across the series connection of said sets of windings provided by said connecting means upon conduction of said controlled conduction means and so that the current through said shunting path is less than said additive output current of said sets of windings received by said utilization means. - View Dependent Claims (6, 7, 8, 9)
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Specification