Patent US3381165A successfully refreshed from Google Patents.
US3381165A
Expired / Lapsed
US
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Electronic circuit in which the operating voltage is obtained from the high voltage side of the circuit
Assignee: Motorola Solutions Inc
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Filing: 1964-09-25
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Granted: 1968-04-30
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Expires: 1984-09-25
Abstract
Abstract The circuit includes a semiconductor device coupled in series with an inductance winding and a capacitor. A second semiconductor device is coupled in series with a second capacitor and is operably coupled to the inductance winding. A DC voltage is applied across the second capacitor and a starting voltage is applied across the first capacitor. Pulses developed across the inductance winding are rectified by the second semiconductor device and coupled back to the first capacitor to provide an operating voltage for the first semiconductor device.
Inventors
- 👤 Douglas W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:19
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/125; H02M3/135; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3070737A
Cited
US3205401A
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US3210601A
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US3200288A
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US3300680A
Cited
US3310705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |