US4251741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power pulser
Assignee: United States Department of the Air Force
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Filing: 1979-02-08
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Granted: 1981-02-17
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Expires: 1999-02-08
Abstract
Abstract A high power pulser, suitable for high energy laser and radar applications, that provides both uniform loading on the source and power combining to achieve high peak power output pulses while eliminating the customary transformer-rectifier power supply is realized by connecting a number of conventional line type AC resonant charging pulsers together in a manner that allows them to be sequentially charged from a polyphase A.C. generator and, upon command, simultaneously discharged into a load.
Inventors
- 👤 Robert A. Gardenghi
- 👤 Edward H. Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/57
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
A high power pulser comprising an m phase A.C. generator each phase feeding n parallel pulse forming networks, m and n being integers not less than 2, an output means, means comprising a controlled switch means controlling the input of each pulse forming network and a command charge switching circuit controlling said controlled switch means sequentially in response to A.C. generator output phase relationships for effecting sequential charging of said pulse forming networks by said A.C. generator, and means for simultaneously discharging said pulse forming neworks into said output means.
Claim 2
Dependent Claim
90 words
A high power pulser comprising an m phase A.C. generator each phase feeding n parallel pulse forming networks, m and n being integers not less than 2, an output means, means comprising a controlled switch means controlling the input of each pulse forming network and a command charge switching circuit controlling said controlled switch means sequentially in response to A.C. generator output phase relationships for effecting sequential charging of said pulse forming networks by said A.C. generator, and means for simultaneously discharging said pulse forming neworks into said output means.
Claim 3
Dependent Claim
53 words
A high power pulser as defined in claim 1 wherein said means for simultaneously discharging said pulse forming networks comprises a pulse forming network discharge circuit, and trigger means, said trigger means activating said discharge circuit periodically to effect an output pulse repetition rate that is a sub-multiple of the A.C. generator frequency.
Claim 4
Dependent Claim
21 words
A high power pulser as defined in claim 2 wherein said pulse forming networks are line type A.C. resonant charging pulsers.
Claim 5
Dependent Claim
21 words
A high power pulser as defined in claim 3 including a resonant charging inductor in each A.C. generator phase feed line.
Claim 6
Dependent Claim
18 words
A high power pulser as defined in claim 4 wherein said controlled switch means are silicon controlled rectifiers.
Claim 7
Dependent Claim
23 words
A high power pulser as defined in claim 5 wherein said pulse forming network discharge circuit is a reverse switching rectifier switching circuit.
References Cited (Backward Citations)
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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) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |