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US3673489A Expired / Lapsed US ⏱️ 0.0 years remaining

Alternator and regulator control system

Assignee: Prestolite Electric Inc
•
Filing: 1971-08-05
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Granted: 1972-06-27
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Expires: 1991-08-05
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Abstract

Abstract An alternator and regulator control system includes diodes connected to the output windings of the alternator to pass unidirectional current pulses and to cause blocking of current when voltage in the output winding reverse biases the diodes. This blockage of current produces a high reverse voltage pulse in the output winding which is then delivered to the field winding of the alternator through electronic switch means to cause excitation of the alternator to develop high power output in the stator windings of the alternator. The electronic switch is a thyristor and forms part of a feedback circuit which is controlled by a voltage regulator that controls the output voltage of the alternator.

Inventors

  • 👤 James A Riff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 05:21
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/26; H02P9/30; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/24; H02J7/2437; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/92

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 138 words
An alternator and regulator control system comprising in combination, output windings for developing an alternating current output voltage having first and second polarities, a field winding positioned adjacent said output windings for developing a magnetic field to induce the alternating current output voltage into said output windings, rectifier means connected to said output voltage to rectify said alternating current output voltage, said rectifier means being highly conductive with said output voltage of the first polarity to pass unidirectional current and being highly nonconductive with said output voltage of the second polarity to block current, and the transition from conduction to nonconduction of said rectifier means producing a reverse voltage pulse in said output windings, and feedback means connected between said output windings and said field winding to utilize said reverse voltage pulses for energizing of said field winding.
Claim 2
Dependent Claim 138 words
An alternator and regulator control system comprising in combination, output windings for developing an alternating current output voltage having first and second polarities, a field winding positioned adjacent said output windings for developing a magnetic field to induce the alternating current output voltage into said output windings, rectifier means connected to said output voltage to rectify said alternating current output voltage, said rectifier means being highly conductive with said output voltage of the first polarity to pass unidirectional current and being highly nonconductive with said output voltage of the second polarity to block current, and the transition from conduction to nonconduction of said rectifier means producing a reverse voltage pulse in said output windings, and feedback means connected between said output windings and said field winding to utilize said reverse voltage pulses for energizing of said field winding.
Claim 3
Dependent Claim 76 words
The alternator and regulator control system of claim 1 wherein said feedback means includes a rotary transformer for receiving said reverse voltage pulses, said rotary transformer including a fixed primary winding for said reverse voltage pulses and a rotating secondary winding rotatable with said field winding, and a second rectifier means connected between said rotating secondary winding and said field winding to deliver direct current pulses to said field winding to produce a magnetic field therein.
Claim 4
Dependent Claim 19 words
The alternator and regulator control system of claim 2 wherein said second rectifier means is a bridge rectifier circuit.
Claim 5
Dependent Claim 84 words
The alternator and regulator control system of claim 1 wherein said feedback means includes a silicon controlled rectifier having load electrodes and a control electrode, said load electrodes connected between said output winding and said field winding for passing said reverse voltage pulses to produce a magnetic field within said field winding, and regulator means for controlling the gate electrode of said silicon controlled rectifier to render the same conductive and nonconductive in response to demands for output voltage from the said output windings.
Claim 6
Dependent Claim 30 words
The alternator and regulator control system of claim 4 wherein said silicon controlled rectifier has its anode connected to said output windings and its cathode connected to said field winding.
Claim 7
Dependent Claim 190 words
An alternator and regulator control system comprising in combination, a first winding means for developing an alternating current voltage output, a second winding means positioned adjacent said first winding means for developing a magnetic field to induce the alternating current output voltage into said first winding means, means connected to said first winding means to convert the alternating current output voltage to a direct current voltage by passing current of one polarity and blocking current of the other polarity such that the transition from a current passing condition to a current blocking condition causing reverse voltage pulses to be developed in said first winding means, feedback means for delivering said reverse voltage pulses from said first winding means to said second winding means to develop the magnetic field therein, and regulator circuit means having terminals connected to said means for converting said alternating current output voltage to said direct current voltage to sense the value thereof and produce a control signal, said regulator circuit means including switch means responsive to said control signal to switchably connect said reverse voltage pulses from said first winding means to said second winding means.
Claim 8
Dependent Claim 190 words
An alternator and regulator control system comprising in combination, a first winding means for developing an alternating current voltage output, a second winding means positioned adjacent said first winding means for developing a magnetic field to induce the alternating current output voltage into said first winding means, means connected to said first winding means to convert the alternating current output voltage to a direct current voltage by passing current of one polarity and blocking current of the other polarity such that the transition from a current passing condition to a current blocking condition causing reverse voltage pulses to be developed in said first winding means, feedback means for delivering said reverse voltage pulses from said first winding means to said second winding means to develop the magnetic field therein, and regulator circuit means having terminals connected to said means for converting said alternating current output voltage to said direct current voltage to sense the value thereof and produce a control signal, said regulator circuit means including switch means responsive to said control signal to switchably connect said reverse voltage pulses from said first winding means to said second winding means.
Claim 9
Dependent Claim 53 words
The alternator and regulator control system of claim 6 wherein said switch means of said regulator circuit means is a silicon controlled rectifier having the anode thereof connected to said means for converting said alternating current output voltage to said direct current voltage and the cathode thereof connected to said second winding means.
Claim 10
Dependent Claim 67 words
The alternator and regulator control system of claim 6 wherein said switch means is a triac which allows pulses of current to pass in both directions, and further including a rotary transformer having the fixed primary winding thereof connected in series with said triac to receive said reverse voltage pulses and a rotary secondary winding thereof connected to said second winding means through a bridge rectifier circuit.
Claim 11
Dependent Claim 57 words
The alternator and regulator control system of claim 6 further including a light indicating circuit consisting of a lamp having one terminal connected to a battery supply of the control system, and two diodes connected to said first winding means and the other terminal of said lamp to provide a counteracting voltage thereto and extinguish the lamp.

References Cited (Backward Citations)

US3260917A Cited
US3299342A Cited
US3544881A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-27 1975-12-27 1976-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-27 1979-12-27 1980-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-27 1983-12-27 1984-06-27 $7700.00 Window Closed / Lapsed

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