US4485314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power circuit utilizing self-excited Hall effect switch means
Assignee: United States Department of the Air Force
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Filing: 1983-02-23
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Granted: 1984-11-27
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Expires: 2003-02-23
Abstract
Abstract A power circuit utilizing a switch comprised of Hall-effect-active resistive elements for interrupting a current flow in an inductive energy storage system. Interruption of the flow of current causes a high-voltage pulse which drives the current flow into a circuit leg which is parallel to the interrupting elements. The Hall effect switch is controlled by means of an exciter coil that is connected in parallel with the Hall-effect-active resistive elements to provide self excited operation.
Inventors
- 👤 Peter J. Turchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:02
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0006; F03H1/0018
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
In combination with a spark gap device a self excited Hall effect switch comprising Hall effect active element means having terminals for connection into an electrical circuit to effect the passage of electrical current through said Hall effect active element means, and magnetic field means including an exciter coil for providing a magnetic field perpendicular to the electrical current flow in said Hall effect active element means, said exciter coil being connected across said spark gap device and in parallel with said Hall effect active element means, said exciter coil controlling the magnitude of said perpendicular magnetic field in response to electrical current flowing through said exciter coil.
Claim 2
Dependent Claim
108 words
In combination with a spark gap device a self excited Hall effect switch comprising Hall effect active element means having terminals for connection into an electrical circuit to effect the passage of electrical current through said Hall effect active element means, and magnetic field means including an exciter coil for providing a magnetic field perpendicular to the electrical current flow in said Hall effect active element means, said exciter coil being connected across said spark gap device and in parallel with said Hall effect active element means, said exciter coil controlling the magnitude of said perpendicular magnetic field in response to electrical current flowing through said exciter coil.
Claim 3
Dependent Claim
22 words
A self excited Hall effect switch as defined in claim 1 wherein said Hall effect active element means comprises a Corbino disc.
Claim 4
Dependent Claim
48 words
A self excited Hall effect switch as defined in claim 1 wherein said Hall effect active element means comprises first and second series connected Corbino discs in concentric juxtaposed relationship, and said magnetic field means comprises an exciter coil wound around the outer surfaces of said Corbino discs.
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) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |