Patent US3159267A successfully refreshed from Google Patents.
US3755686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powerplexer
Assignee: National Aeronautics and Space Administration
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Filing: 1972-05-31
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Granted: 1973-08-28
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Expires: 1992-05-31
Abstract
Abstract For use in the distribution of DC power levels to loads which require different voltages, a circuit which is supplied with DC voltage levels and commutates pulses for timed intervals onto a pair of distribution wires. The circuit is driven by a command generator which places pulses on the wires in a timed sequence. The pair of wires extend to voltage strippers connected to the various loads. The voltage strippers each respond to the pulse DC levels on the pair of wires and form different output voltages communicated to each load.
Inventors
- 👤 J Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:56
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/10; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/577
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
220 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom with one of said output wires being the system ground and said first and second power supplies being grounded thereto, said circuit means including commutator means connected to said output wires and having as inputs conductors connected to said power supplies, and timed means connected to said commutator means for periodically operating said commutator means to place first one DC voltage level on said output wires and then another DC voltage level on said output wires from said first and second power supplies; and first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires.
Claim 2
Dependent Claim
220 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom with one of said output wires being the system ground and said first and second power supplies being grounded thereto, said circuit means including commutator means connected to said output wires and having as inputs conductors connected to said power supplies, and timed means connected to said commutator means for periodically operating said commutator means to place first one DC voltage level on said output wires and then another DC voltage level on said output wires from said first and second power supplies; and first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires.
Claim 3
Dependent Claim
62 words
The circuit of claim 1 wherein said commutator means includes switching means with an input terminal adapted to be connected to one of the input conductors; an output terminal connected to said switching means; and, a control terminal thereon adapted to be connected to said timed means for operating said switching means to selectively connect said output terminal to said input terminal.
Claim 4
Dependent Claim
27 words
The circuit of claim 2 wherein said switching means includes a switching transistor and said transistor has a base which is connected to a bias voltage source.
Claim 5
Dependent Claim
30 words
The circuit of claim 3 wherein said transistor is connected at its collector to one of said input conductors and has an emitter which is connected to said output wires.
Claim 6
Dependent Claim
15 words
The circuit of claim 4 including in said emitter circuit a diode and series resistance.
Claim 7
Dependent Claim
166 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means including a positive peak voltage rectifier circuit.
Claim 8
Dependent Claim
166 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means including a positive peak voltage rectifier circuit.
Claim 9
Dependent Claim
167 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said Wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means including a negative peak voltage rectifier circuit.
Claim 10
Dependent Claim
167 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said Wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means including a negative peak voltage rectifier circuit.
Claim 11
Dependent Claim
171 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means having a pair of output terminals with a storage capacitor thereacross.
Claim 12
Dependent Claim
171 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means having a pair of output terminals with a storage capacitor thereacross.
Claim 13
Dependent Claim
171 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first and second circuit means being positive and negative peak voltage rectifier circuits, respectively.
Claim 14
Dependent Claim
171 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first and second circuit means being positive and negative peak voltage rectifier circuits, respectively.
Claim 15
Dependent Claim
184 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means including a peak voltage rectifier and a series component responsive to excessive voltage which means blocks excessive voltage from said peak voltage rectifier circuit.
Claim 16
Dependent Claim
184 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires, comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies; and, first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires, said first circuit means including a peak voltage rectifier and a series component responsive to excessive voltage which means blocks excessive voltage from said peak voltage rectifier circuit.
Claim 17
Dependent Claim
68 words
The circuit of claim 10 wherein said series component includes a switch means; excessive voltage detection means forming a signal supplied to said switch means; said switch means being operable to selectively open and close; a storage capacitor on the output of said peak voltage rectifier for being charged thereby; and, said excessive voltage detection means opening and closing said switch means on the occurrence of excessive voltage.
Claim 18
Dependent Claim
29 words
The circuit of claim 11 wherein said switch means includes a series connected transistor having a base at which an input control signal switches said transistor off and on.
Claim 19
Dependent Claim
14 words
The circuit of claim 11 wherein said peak voltage rectifier includes a series diode.
Claim 20
Dependent Claim
181 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies for a defined duty cycle; first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires; and, a third circuit means for placing a digital signal on said wires during a specified portion of the duty cycle.
Claim 21
Dependent Claim
181 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires comprising: first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies for a defined duty cycle; first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires; and, a third circuit means for placing a digital signal on said wires during a specified portion of the duty cycle.
Claim 22
Dependent Claim
180 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires comprising -first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies for a defined duty cycle; first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires; and, a third circuit means for placing an analog on said wires during a specified portion of the duty cycle.
Claim 23
Dependent Claim
180 words
A circuit for providing a multiplicity of DC levels to power consuming loads utilizing a pair of wires comprising -first and second power supplies forming DC voltage levels which are different from one another; circuit means connected to said first and second power supplies, said means having a pair of wires serving as an output therefrom, said means further placing timed pulses of voltage levels on said wires from said first and second power supplies for a defined duty cycle; first and second circuit means connected to said pair of wires and each being adapted to be selectively connected to a load which respectively requires power from said first and second power supplies and operable on the different DC voltage levels therefrom, said first and second circuit means forming output DC voltage levels for the loads wherein the DC voltage levels are different from one another, and are provided thereto continuously from the timed pulses on said pair of wires; and, a third circuit means for placing an analog on said wires during a specified portion of the duty cycle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |