US3624446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical energy storage and flashing apparatus
Assignee: Revvity Inc
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Filing: 1969-10-06
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Granted: 1971-11-30
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Expires: 1989-10-06
Abstract
Abstract This disclosure relates to electrical energy storage apparatus in which a novel clamp supply voltage and feedback control is provided in a series resonant charging energy storage system to prevent the storage elements from developing voltages that exceed a predetermined voltage and that would normally be produced by the action of the series resonant charging.
Inventors
- 👤 Jacob Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:46
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
110 words
Electrical energy storage apparatus having, in combination, a source of direct-current voltage provided with means for varying the magnitude of its voltage, energy-storage means connected in a series resonant charging circuit to said source to store energy in the energy storage means that, by the action of the series resonant charging, may develop a voltage that exceeds a predetermined voltage to which it is desired to charge the energy-storage means, and means responsive to the voltage to which the energy-storage means is being charged and connected with the said voltage-magnitude varying means of the source to limit the voltage developed by the series resonant charging to the said predetermined voltage.
Claim 2
Dependent Claim
110 words
Electrical energy storage apparatus having, in combination, a source of direct-current voltage provided with means for varying the magnitude of its voltage, energy-storage means connected in a series resonant charging circuit to said source to store energy in the energy storage means that, by the action of the series resonant charging, may develop a voltage that exceeds a predetermined voltage to which it is desired to charge the energy-storage means, and means responsive to the voltage to which the energy-storage means is being charged and connected with the said voltage-magnitude varying means of the source to limit the voltage developed by the series resonant charging to the said predetermined voltage.
Claim 3
Dependent Claim
50 words
Apparatus as claimed in claim 1 and in which load means is connected in series with normally open switch means in parallel with the said energy storage means for delivering the said predetermined voltage developed in the energy storage means to the loAd means when the switch means is closed.
Claim 4
Dependent Claim
48 words
Apparatus as claimed in claim 2 and in which the said responsive means comprises potential divider means connected to provide a sample voltage indicative of the said voltage developed in the energy storage means, and feedback means is connected between said potential divider and said source varying means.
Claim 5
Dependent Claim
87 words
Apparatus as claimed in claim 3 and in which there is provided a further voltage supply, one terminal of which is connected to one terminal of the said source and the other terminal of which is connected to one side of the said potential divider means, the other side of the potential divider means being connected with the other terminal of the said source to develop across the potential divider means the sum of the voltage of the said source and that of the further voltage supply.
Claim 6
Dependent Claim
55 words
Apparatus as claimed in claim 4 and in which the said feedback means includes a voltage controller provided with comparator means for comparing the voltage fed back from said potential divider means with a reference voltage in order to vary the source in accordance with variations in the voltage developed in the energy storage means.
Claim 7
Dependent Claim
39 words
Apparatus as claimed in claim 3 and in which said load comprises a normally nonconductive flash device that is rendered conductive upon application of a threshold voltage from the energy storage means upon closing of the said switch means.
Claim 8
Dependent Claim
29 words
Apparatus as claimed in claim 4 and in which said further voltage supply comprises further energy-storage means connected to the first-recited energy-storage means for the transfer of energy therebetween.
Claim 9
Dependent Claim
25 words
Apparatus as claimed in claim 7 and in which said further and said first-recited energy-storage means are connected by rectifier means bridged by resistance means.
Claim 10
Dependent Claim
18 words
Apparatus as claimed in claim 7 and in which said further energy-storage means is shunted by resistance means.
Claim 11
Dependent Claim
21 words
Apparatus as claimed in claim 9 and in which a filter including parallel resistance and capacitance is connected across said source.
Claim 12
Dependent Claim
88 words
Electrical energy storage apparatus having, in combination, first energy-storage means, direct-current voltage source means coupled to said energy-storage means and capable of developing a voltage that exceeds a predetermined voltage to which it is desired to charge the energy-storage means, and means for regulating the voltage to which said energy-storage means is charged, said regulating means comprising further energy-storage means coupled to the first-recited energy-storage means for the transfer of energy therebetween, and a voltage supply coupled to said further energy-storage means and in series with said source.
Claim 13
Dependent Claim
88 words
Electrical energy storage apparatus having, in combination, first energy-storage means, direct-current voltage source means coupled to said energy-storage means and capable of developing a voltage that exceeds a predetermined voltage to which it is desired to charge the energy-storage means, and means for regulating the voltage to which said energy-storage means is charged, said regulating means comprising further energy-storage means coupled to the first-recited energy-storage means for the transfer of energy therebetween, and a voltage supply coupled to said further energy-storage means and in series with said source.
Claim 14
Dependent Claim
27 words
Apparatus as claimed in claim 11 and in which said further energy-storage means is connected to the first-recited energy-storage means by rectifier means bridged by resistance means.
Claim 15
Dependent Claim
49 words
Apparatus as claimed in claim 12 and in which load means is connected in series with normally open switch means in parallel with the first-recited energy-storage means for delivering the said predetermined voltage developed in the first-recited energy-storage means to the load means when the switch means is closed.
Claim 16
Dependent Claim
31 words
Apparatus as claimed in claim 11 and in which said source is provided with means for varying the voltage thereof in accordance with the voltage developed across the first-recited energy-storage means.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |