US4473875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive storage pulse circuit device
Assignee: United States Department of Energy
•
Filing: 1984-01-27
•
Granted: 1984-09-25
•
Expires: 2004-01-27
Abstract
Abstract Inductive storage pulse circuit device which is capable of delivering a series of electrical pulses to a load in a sequential manner. Silicon controlled rectifiers as well as spark gap switches can be utilized in accordance with the present invention. A commutation switching array is utilized to produce a reverse current to turn-off the main opening switch. A commutation capacitor produces the reverse current and is initially charged to a predetermined voltage and subsequently charged in alternating directions by the inductive storage current.
Inventors
- 👤 William M. Parsons
- 👤 Emanuel M. Honig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:08
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/125; H02M3/135; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86; Y10S505/88
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
168 words
A pulse circuit device for delivering electrical pulses to a load comprising: an inductive storage device; a power supply for generating a charging current, said power supply connected to said inductive storage device; first switch means for applying said charging current to said inductive storage device in a predetermined direction to charge said inductive storage device; an array of commutation switches connected in parallel to said first switch means; a commutation capacitor connected to said array of commutation switches; means for controlling said array of commutation switches to discharge said commutation capacitor through said first switch means in a direction opposite to said predetermined direction to generate zero current in said first switch means to turn-off said first switch means; triggerable switch means connected to said inductive storage device and said load for delivering electrical pulses to said load when said first switch means is turned-off; whereby said triggerable switch means controls the risetime and said array commutation switches controls the pulse repetition frequency of said electrical pulses.
Claim 2
Dependent Claim
168 words
A pulse circuit device for delivering electrical pulses to a load comprising: an inductive storage device; a power supply for generating a charging current, said power supply connected to said inductive storage device; first switch means for applying said charging current to said inductive storage device in a predetermined direction to charge said inductive storage device; an array of commutation switches connected in parallel to said first switch means; a commutation capacitor connected to said array of commutation switches; means for controlling said array of commutation switches to discharge said commutation capacitor through said first switch means in a direction opposite to said predetermined direction to generate zero current in said first switch means to turn-off said first switch means; triggerable switch means connected to said inductive storage device and said load for delivering electrical pulses to said load when said first switch means is turned-off; whereby said triggerable switch means controls the risetime and said array commutation switches controls the pulse repetition frequency of said electrical pulses.
Claim 3
Dependent Claim
23 words
The device of claim 1 further comprising means for controlling said first switch means to regulate the pulse width of said electrical pulses.
Claim 4
Dependent Claim
17 words
The device of claim 1 wherein said first switch means comprises at least one silicon controlled rectifier.
Claim 5
Dependent Claim
17 words
The device of claim 1 wherein said first switch means comprises at least one spark gap switch.
Claim 6
Dependent Claim
119 words
A circuit device for delivering electrical power pulses to a load comprising: power supply means for generating electrical power; an inductive storage device connected to said power supply means; first switch means connected to said inductive storage device and said power supply; two sets of commutation switches connected in parallel to said first switching means; capacitive storage means connected between said two sets of commutation switches for delivering a reverse current to said first switch means to turn off said first switch means whenever at least one set of said commutation switches are turned-on; triggerable switch means for delivering an electrical power pulse from said inductive storage device to said load each time said first switch means is turned-off.
Claim 7
Dependent Claim
119 words
A circuit device for delivering electrical power pulses to a load comprising: power supply means for generating electrical power; an inductive storage device connected to said power supply means; first switch means connected to said inductive storage device and said power supply; two sets of commutation switches connected in parallel to said first switching means; capacitive storage means connected between said two sets of commutation switches for delivering a reverse current to said first switch means to turn off said first switch means whenever at least one set of said commutation switches are turned-on; triggerable switch means for delivering an electrical power pulse from said inductive storage device to said load each time said first switch means is turned-off.
Claim 8
Dependent Claim
23 words
The device of claim 5 further comprising means for controlling said first switch means to regulate the pulse width of said electrical pulses.
Claim 9
Dependent Claim
17 words
The device of claim 5 wherein said first switch means comprises at least one silicon controlled rectifier.
Claim 10
Dependent Claim
17 words
The device of claim 5 wherein said first switch means comprises at least one spark gap switch.
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) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |