Patent US3962591A successfully refreshed from Google Patents.
US3962591A
Expired / Lapsed
US
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Voltage doubler circuit
Assignee: United States Department of the Army
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Filing: 1974-12-23
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Granted: 1976-06-08
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Expires: 1994-12-23
Abstract
Abstract A voltage doubler circuit is disclosed which uses only resistive, capacitive and semiconductive components. The circuit, which is extremely rugged and reliable and is ideally suited for miniaturization, includes a pair of transistors for controlling the charging of two capacitors. A third transistor is provided for discharging the two capacitors onto a voltage doubling capacitor.
Inventors
- 👤 Edward A. Popka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:06
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/06; H02M3/07
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
A voltage doubling circuit comprising: input terminal means adapted to be coupled to a source of DC potential having a predetermined magnitude, output terminal means coupled to said input terminal means for supplying an output voltage having a magnitude twice that of said input voltage, first charge storage means coupled across said output terminal means for supplying an output voltage thereto, charging circuit means coupled in parallel with said first charge storage means for controlling the charging thereof, said charging circuit means including an electronic switch having a single on-off function interposed in series between second and third charge storage means; and control circuit means coupled to said charging circuit means for controlling the operation thereof.
Claim 2
Dependent Claim
116 words
A voltage doubling circuit comprising: input terminal means adapted to be coupled to a source of DC potential having a predetermined magnitude, output terminal means coupled to said input terminal means for supplying an output voltage having a magnitude twice that of said input voltage, first charge storage means coupled across said output terminal means for supplying an output voltage thereto, charging circuit means coupled in parallel with said first charge storage means for controlling the charging thereof, said charging circuit means including an electronic switch having a single on-off function interposed in series between second and third charge storage means; and control circuit means coupled to said charging circuit means for controlling the operation thereof.
Claim 3
Dependent Claim
45 words
A voltage doubling circuit as in claim 1, wherein: said control circuit means comprises a first transistor coupled between said input terminal means and said second charge storage means and a second transistor coupled between said input terminal means and said third charge storage means.
Claim 4
Dependent Claim
42 words
A voltage doubling circuit as in claim 2, wherein: said control circuit means further includes a control terminal adapted to be coupled to a suitable control signal generator, said control terminal coupled to the base electrodes of said first and second transistors.
Claim 5
Dependent Claim
200 words
A voltage doubling circuit comprising: input terminal means adapted to be coupled to a source of DC potential having a predetermined magnitude, output terminal means coupled to said input terminal means for supplying an output voltage having a magnitude twice that of said input voltage, first charge storage means coupled across said output terminal means for supplying an output voltage thereto, charging circuit means coupled in parallel with said first charge storage means for controlling the charging thereof, said charging circuit means including second and third charge storage means coupled to an electronic switch; control circuit means coupled to said charging circuit means for controlling the operation thereof, said control circuit means comprising a first transistor coupled between said input terminal means and said second charge storage means and a second transistor coupled between said input terminal means and said third charge storage means and a control terminal adapted to be coupled to a suitable control signal generator, said control terminal coupled to the base electrodes of said first and second transistors, and wherein said electronic switch comprises a third transistor having the base thereof coupled to said control terminal and to the bases of said first and second transistors.
Claim 6
Dependent Claim
200 words
A voltage doubling circuit comprising: input terminal means adapted to be coupled to a source of DC potential having a predetermined magnitude, output terminal means coupled to said input terminal means for supplying an output voltage having a magnitude twice that of said input voltage, first charge storage means coupled across said output terminal means for supplying an output voltage thereto, charging circuit means coupled in parallel with said first charge storage means for controlling the charging thereof, said charging circuit means including second and third charge storage means coupled to an electronic switch; control circuit means coupled to said charging circuit means for controlling the operation thereof, said control circuit means comprising a first transistor coupled between said input terminal means and said second charge storage means and a second transistor coupled between said input terminal means and said third charge storage means and a control terminal adapted to be coupled to a suitable control signal generator, said control terminal coupled to the base electrodes of said first and second transistors, and wherein said electronic switch comprises a third transistor having the base thereof coupled to said control terminal and to the bases of said first and second transistors.
Claim 7
Dependent Claim
38 words
A voltage doubling circuit as in claim 4, wherein: said second charge storage means is coupled to the emitter of said third transistor and said third charge storage means is coupled to the collector of said third transistor.
Claim 8
Dependent Claim
76 words
A voltage doubler circuit as in claim 5, wherein the base electrodes of said first and second transistors are coupled to said control electrode through first and second resistors, and wherein the collector electrodes of said first and second transistors are coupled to said second and third charge storage means through third and fourth resistors, said first and second resistors having resistance values at least one hundred times the value of said third and fourth resistors.
Claim 9
Dependent Claim
26 words
A voltage doubling circuit as in claim 6, further comprising: first and second diode means coupled between said input terminal means and said output terminal means.
Claim 10
Dependent Claim
26 words
A voltage doubling circuit as in claim 7 wherein: said second charge storage means is coupled to a point between said first and second diode means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |