US3660672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply dual output
Assignee: Pioneer Magnetics Inc
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Filing: 1971-02-25
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Granted: 1972-05-02
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Expires: 1991-02-25
Abstract
Abstract A power supply is provided which produces a plurality of separate unidirectional output voltages of different degrees of regulation as determined by the requirements of the equipment energized thereby. The power supply includes a transformer and a regulating network, and it produces a first regulated unidirectional potential output; and the power supply also includes a circuit for obtaining at least one additional regulated unidirectional potential output from the same transformer and regulator.
Inventors
- 👤 James K Berger
- 👤 Bruce L Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:35
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/563; H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33507
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
145 words
In a power supply system for converting input power into regulated direct-current output power, and which includes a transformer having a primary winding and a secondary winding; input circuitry for connecting said primary winding to said source of input power; output circuitry connected to said secondary winding for producing a first unidirectional potential output; and voltage regulator circuitry connected to said output circuitry for sensing the amplitude of said first unidirectional potential output and further connected to said input circuitry to control the current flow in said primary winding and thereby regulate said first potential output; the combination of: a tertiary winding on said transformer, further output circuitry connected to said tertiary winding for producing a second regulated unidirectional potential output, and capacitor means connected to said tertiary winding and to said secondary winding effectively to improve the coupling between said secondary and tertiary windings.
Claim 2
Dependent Claim
145 words
In a power supply system for converting input power into regulated direct-current output power, and which includes a transformer having a primary winding and a secondary winding; input circuitry for connecting said primary winding to said source of input power; output circuitry connected to said secondary winding for producing a first unidirectional potential output; and voltage regulator circuitry connected to said output circuitry for sensing the amplitude of said first unidirectional potential output and further connected to said input circuitry to control the current flow in said primary winding and thereby regulate said first potential output; the combination of: a tertiary winding on said transformer, further output circuitry connected to said tertiary winding for producing a second regulated unidirectional potential output, and capacitor means connected to said tertiary winding and to said secondary winding effectively to improve the coupling between said secondary and tertiary windings.
Claim 3
Dependent Claim
37 words
The combination defined in claim 1, in which the turns ratio between said tertiary winding and said secondary winding corresponds to the voltage ratio of said second regulated unidirectional potential output and said first unidirectional potential output.
Claim 4
Dependent Claim
27 words
The combination defined in claim 1, in which said capacitor is connected to one side of said tertiary winding and to a tap on said secondary winding.
Claim 5
Dependent Claim
54 words
The combination defined in claim 1, in which said capacitor is connected to one side of said tertiary winding and to a tap on said secondary winding, and in which the turns of said secondary winding between said tap and one side of said unidirectional winding correspond to the turns of said tertiary winding.
Claim 6
Dependent Claim
58 words
The combination defined in claim 1, and which includes a dummy load circuit connected across said first-named output circuit, and in which said dummy load circuit is further connected to said further output circuitry and is responsive to the voltage level of said second unidirectional potential output to control the load exerted thereby across said first-named output circuitry.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |