US3943453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage rapid switching circuit
Assignee: Alcatel CIT SA
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Filing: 1974-02-20
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Granted: 1976-03-09
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Expires: 1994-02-20
Abstract
Abstract A high voltage rapid switching circuit having a capacity in relation to ground and on a charge from a switchable voltage generator, includes a reactive power supplement circuit constituted by series-connected installations, each having an inductance and an initially charged capacitor which are switchable on the said charge to form, respectively, oscillating circuits.
Inventors
- 👤 Gerald Melchior
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:04
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/04; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/27
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
A high voltage rapid switching circuit for switching a voltage applied to a charged element having a particular electrical capacity between n different levels comprising switchable voltage generator means connected to said charged element for supplying n levels of d.c. high voltage, starting-up circuit means for connection to said charged element to form at least one oscillating circuit therewith for switching the potential of said charged element with respect to ground to one of said n levels of d.c. high voltage, and logic circuit means for controlling said switchable voltage generator means and said starting-up circuit means to the same of said n levels of d.c. high voltage.
Claim 2
Dependent Claim
108 words
A high voltage rapid switching circuit for switching a voltage applied to a charged element having a particular electrical capacity between n different levels comprising switchable voltage generator means connected to said charged element for supplying n levels of d.c. high voltage, starting-up circuit means for connection to said charged element to form at least one oscillating circuit therewith for switching the potential of said charged element with respect to ground to one of said n levels of d.c. high voltage, and logic circuit means for controlling said switchable voltage generator means and said starting-up circuit means to the same of said n levels of d.c. high voltage.
Claim 3
Dependent Claim
60 words
A high voltage rapid switching circuit as defined in claim 1 wherein said starting-up circuit means comprises a plurality of series-connected circuits connected to said charged element, each series-connected circuit including an inductance, a switch and a starting-up voltage source in the form of a precharged capacitor, the switch in each series-connected circuit being controlled by said logic circuit means.
Claim 4
Dependent Claim
58 words
A high voltage rapid switching circuit as defined in claim 2 wherein said switchable voltage generator means comprises a d.c. high voltage source, a resistor connecting said high voltage source to said charged element and an oscillating circuit switchable to n-1 frequencies by said logic circuit means connected to the point between said resistor and said charged element.
Claim 5
Dependent Claim
39 words
A high voltage rapid switching circuit as defined in claim 3 wherein said oscillating circuit comprises an operational amplifier and means for varying the frequency of the output of said operational amplifier in response to said logic circuit means.
Claim 6
Dependent Claim
32 words
A high voltage rapid switching circuit as defined in claim 3 wherein said charged element is set to an original potential equal to one of said n levels of d.c. high voltage.
Claim 7
Dependent Claim
63 words
A high voltage rapid switching circuit as defined in claim 1 wherein said starting-up circuit means comprises an inductance element connected to said charged element and a plurality of series-connected circuits connected to said inductance element, each series-connected circuit including a switch and a starting-up voltage source in the form of a precharged capacitor, the switches being controlled by said logic circuit means.
References Cited (Backward Citations)
US2257942A
Cited
US3697880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |