Patent US3568031A successfully refreshed from Google Patents.
US3568031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle power supply for battery charging and load supply
Assignee: Individual
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Filing: 1969-10-17
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Granted: 1971-03-02
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Expires: 1989-10-17
Abstract
Abstract A circuit is disclosed in which a current responsive bistable regulator automatically interrupts the charging of a battery when the latter reaches a predetermined voltage. The dynamo source, however, continues to supply the miscellaneous loads of the vehicle. When the dynamo is cut off the loads are fed by the battery through a thyristor which is shut off when the dynamo is reenergized.
Inventors
- 👤 Klaus Eberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:33
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
162 words
A current supply system for vehicles comprising a dynamo for supplying direct current, a battery and a charging regulator, said battery being connected in parallel to said dynamo through said regulator and to a load, said regulator being adapted to interrupt automatically the charging of said battery after the latter has reached a predetermined voltage and the charging current has dropped below a predetermined value, and in which the negative output terminal of said dynamo is permanently connected to the negative input terminal of said load, the positive output terminal of said dynamo is connected through a control member of said regulator to the positive terminal of said battery and permanently connected to the line leading to the positive input terminal of said load, and in which the positive terminal of said battery is connected to said line through a thyristor which is so controlled that it becomes conductive when the dynamo voltage disappears and becomes nonconductive when the dynamo voltage reappears.
Claim 2
Dependent Claim
162 words
A current supply system for vehicles comprising a dynamo for supplying direct current, a battery and a charging regulator, said battery being connected in parallel to said dynamo through said regulator and to a load, said regulator being adapted to interrupt automatically the charging of said battery after the latter has reached a predetermined voltage and the charging current has dropped below a predetermined value, and in which the negative output terminal of said dynamo is permanently connected to the negative input terminal of said load, the positive output terminal of said dynamo is connected through a control member of said regulator to the positive terminal of said battery and permanently connected to the line leading to the positive input terminal of said load, and in which the positive terminal of said battery is connected to said line through a thyristor which is so controlled that it becomes conductive when the dynamo voltage disappears and becomes nonconductive when the dynamo voltage reappears.
Claim 3
Dependent Claim
23 words
A current supply system according to claim 1 in which the voltage which is supplied from the dynamo to the load is stabilized.
Claim 4
Dependent Claim
27 words
A current supply system according to claim 1 in which the dynamo and all other components of the system, except the battery, are combined into one unit.
Claim 5
Dependent Claim
78 words
A current supply system according to claim 1 in which a condenser is arranged between the control electrode and the cathode of said thyristor, a diode and a resistor being both in series with each other and parallel to that thyristor and in which the anode of said thyristor is directly connected to the load and is connected to the positive output terminal of said dynamo through a condenser and a resistor which latter are both in parallel.
Claim 6
Dependent Claim
130 words
A current supply system according to claim 1 in which the control member of said regulator is formed by a transistor whose emitter-collector junction is arranged in the circuit of the charging current and whose base electrode is connected through a Zener diode to a terminal of said battery, in which a resistor is arranged in said circuit in series to the emitter-collector junction, in which the voltage across said resistor is applied to the base electrode and to the emitter-electrode of a further transistor, which, together with the first transistor, is combined to a bistable trigger circuit in such a manner that, in the case of the charging current dropping below a predetermined cutoff value, the transistor in the circuit of the charging current is controlled to become nonconductive.
Claim 7
Dependent Claim
22 words
A current supply system according to claim 1 in which a Zener diode is arranged between the lines leading to the load.
Claim 8
Dependent Claim
63 words
A current supply system according to claim 1 in which one of the terminals of the dynamo is connected through the emitter-collector junction of a transistor to the line leading to the load, and in which the base electrode of said transistor is connected through a Zener diode to the other line leading to the load and through a resistor to the collector-electrode.
Claim 9
Dependent Claim
45 words
A current supply system according to claim 1 in which the Zener diode for stabilizing the load voltage is so selected that this diode controls the voltage supplied by the dynamo to a value which is equal to or somewhat greater than the battery voltage.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |