US3614581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power conversion system
Assignee: Individual
•
Filing: 1970-02-10
•
Granted: 1971-10-19
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Expires: 1990-02-10
Abstract
Abstract This invention relates to a power conversion system wherein energy from a high-voltage direct current source is caused to charge a relatively small high-voltage capacitor and the energy stored in said capacitor is transferred periodically through a resonant discharge circuit and rectifier to supply a low-voltage direct current to a load which may, for example, be a large capacitor or a battery whose charge is to be maintained relatively constant.
Inventors
- 👤 Emerson L Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:03
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/02; H02J2207/00; H02J2207/20; Y; Y10; Y10S; Y10S320/00; Y10S320/22; Y10S320/23; Y10S320/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
73 words
An energy conversion system comprising a high-voltage direct current source, a charging capacitor, switching means including means for connecting said charging capacitor to said source to charge said capacitor from said source during a first interval; and a series resonant discharge circuit including said charging capacitor, an inductor, a rectifier, and a load; said switching means further including means for discharging said charging capacitor through said resonant discharge circuit during a second interval.
Claim 2
Dependent Claim
73 words
An energy conversion system comprising a high-voltage direct current source, a charging capacitor, switching means including means for connecting said charging capacitor to said source to charge said capacitor from said source during a first interval; and a series resonant discharge circuit including said charging capacitor, an inductor, a rectifier, and a load; said switching means further including means for discharging said charging capacitor through said resonant discharge circuit during a second interval.
Claim 3
Dependent Claim
14 words
An energy conversion means according to claim 1 wherein said load is a battery.
Claim 4
Dependent Claim
29 words
An energy conversion means according to claim 1 wherein said load is a second capacitor the capacitance of which is large compared to the capacitance of said charging capacitor.
Claim 5
Dependent Claim
24 words
An energy conversion system according to claim 1 further including a charging impedance combining with said charging capacitor to comprise a resonant charging circuit.
Claim 6
Dependent Claim
32 words
An energy conversion system according to claim 1 wherein said switching means is cycled to periodically charge said charging capacitor and transfer the energy stored in said charging capacitor to said load.
References Cited (Backward Citations)
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US3376488A
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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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |