Patent US3827552A successfully refreshed from Google Patents.
US3636434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator for permanent magnet alternators
Assignee: Motorola Solutions Inc
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Filing: 1970-11-04
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Granted: 1972-01-18
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Expires: 1990-11-04
Abstract
Abstract A voltage regulator having silicon controlled rectifiers connecting opposite ends of the output winding of an alternator to a voltage utilization circuit connected to the output terminal of the voltage regulator. The voltage regulator utilizes the voltage difference between the gate cathode circuit of the silicon controlled rectifiers to establish a reference current conducting point at which the silicon controlled rectifiers will be rendered conductive.
Inventors
- 👤 Ljubomir Beuk
- 👤 Robert Vargas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:15
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/145; H02M7/155; H02M7/1552; H02J; H02J7/00; H02J7/14; H02J7/1469; H02J7/1492; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/92
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
348 words
A voltage regulator circuit for connection across the output winding of a dynamoelectric machine which develops alternating current voltage with opposite polarity half-cycles appearing at the end of said output winding, comprising: a pair of input terminals and an output terminal, said input terminals arranged for connection to the opposite ends of the output winding of the dynamoelectric machine, and said output terminal arranged for connection to a load; a first current control device having load electrodes connected between one of said pair of input terminals and said output terminal and having a control electrode to selectively cause conduction of said first current control device when halfcycles of a given polarity are applied to said one input terminal; a second current control device having load electrodes connected between the other of said pair of input terminals and output terminals, and having a control electrode to selectively cause conduction of said second current control device when halfcycles of a given polarity are applied to said other input terminal; a reference voltage source having a voltage value proportional to the voltage value desired at the output terminal of the voltage regulator circuit; a diode connected from each of said pair of input terminals to said reference voltage source to deliver unidirectional current to said reference voltage source; circuit means coupling said control electrodes of said first and second current control devices to said diodes to maintain said control electrode at a fixed voltage value corresponding to said reference voltage source; and utilization means coupled to said output terminal to develop the output voltage of the voltage regulator circuit, and when said output voltage is below a selected predetermined value corresponding to the value of said reference voltage source, it will cause said first and second current control devices alternately to be rendered conductive in response to alternate half-cycles of said given polarity at said inpUt terminals, and when said output voltage source is above said selected predetermined value, it will disable said first and second current control devices to prevent current flow from said input terminals to said output terminals.
Claim 2
Dependent Claim
348 words
A voltage regulator circuit for connection across the output winding of a dynamoelectric machine which develops alternating current voltage with opposite polarity half-cycles appearing at the end of said output winding, comprising: a pair of input terminals and an output terminal, said input terminals arranged for connection to the opposite ends of the output winding of the dynamoelectric machine, and said output terminal arranged for connection to a load; a first current control device having load electrodes connected between one of said pair of input terminals and said output terminal and having a control electrode to selectively cause conduction of said first current control device when halfcycles of a given polarity are applied to said one input terminal; a second current control device having load electrodes connected between the other of said pair of input terminals and output terminals, and having a control electrode to selectively cause conduction of said second current control device when halfcycles of a given polarity are applied to said other input terminal; a reference voltage source having a voltage value proportional to the voltage value desired at the output terminal of the voltage regulator circuit; a diode connected from each of said pair of input terminals to said reference voltage source to deliver unidirectional current to said reference voltage source; circuit means coupling said control electrodes of said first and second current control devices to said diodes to maintain said control electrode at a fixed voltage value corresponding to said reference voltage source; and utilization means coupled to said output terminal to develop the output voltage of the voltage regulator circuit, and when said output voltage is below a selected predetermined value corresponding to the value of said reference voltage source, it will cause said first and second current control devices alternately to be rendered conductive in response to alternate half-cycles of said given polarity at said inpUt terminals, and when said output voltage source is above said selected predetermined value, it will disable said first and second current control devices to prevent current flow from said input terminals to said output terminals.
Claim 3
Dependent Claim
42 words
The voltage regulator circuit of claim 1 wherein said reference voltage source includes a single zener diode, first and second resistors connected at opposite ends of said output winding, and in series with the respective diodes connected with said single zener diode.
Claim 4
Dependent Claim
31 words
The voltage regulator circuit of claim 1 including first and second diodes connected in series with the respective first and second control electrodes of said first and second current control devices.
Claim 5
Dependent Claim
37 words
The voltage regulator circuit of claim 1 including first and second resistors connected in parallel with said first and second diodes, respectively, to prevent said first and second current control devices from locking on due to overheating.
Claim 6
Dependent Claim
26 words
The voltage regulator circuit of claim 1 wherein said output voltage is developed across a capacitor connected to the output terminal of said voltage regulator circuit.
Claim 7
Dependent Claim
29 words
The voltage regulator circuit of claim 1 wherein said second reference potential is developed by means of a battery connected to the output terminal of said voltage regulator circuit.
Claim 8
Dependent Claim
80 words
The voltage regulator circuit of claim 1 wherein said first reference voltage is developed by a circuit including a transistor having collector-emitter electrodes connected in series with a resistor which, in turn, is coupled to the control electrodes of said first and second current control devices, and a zener diode coupled across said resistor and the base electrode of said transistor to cause constant voltage to be sensed at the control electrodes of said first and second current control device.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |