US3601682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static inverter for ensuring smooth supply of power for leading and lagging load currents
Assignee: Shinko Electric Co Ltd
•
Filing: 1970-06-01
•
Granted: 1971-08-24
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Expires: 1990-06-01
Abstract
Abstract A stationary inverter having a DC power source and a transformer. Input power is applied from the source alternatingly to either half of the primary winding of the transformer through a first and a second controlled switching circuits, respectively. Diodes are used in the switching circuits for ensuring smooth supply of power for leading and lagging load currents.
Inventors
- 👤 Masahiko Iwata
- 👤 Hirosuke Imabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:36
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/5152; H02M7/53; H02M7/537; H02M7/538; H02M7/53803; H02M7/53806
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
A stationary inverter comprising a DC power source, a transformer having a primary winding a secondary winding, a first controlled switching element having one terminal connected to the middle point of the primary winding of the transformer through the DC power source, a second controlled switching element and a third controlled switching element being inserted between the opposite terminal of the first switching element and opposite ends of the primary winding of the transformer, respectively, a first diode connected across a series-connected circuit consisting of the first switching element and the second switching element, a second diode connected across another series-connected circuit consisting of the first switching element and the third switching element, and a third diode connected between the middle point of the primary winding of the transformer and the common joint of the second switching element and the third switching element.
Claim 2
Dependent Claim
143 words
A stationary inverter comprising a DC power source, a transformer having a primary winding a secondary winding, a first controlled switching element having one terminal connected to the middle point of the primary winding of the transformer through the DC power source, a second controlled switching element and a third controlled switching element being inserted between the opposite terminal of the first switching element and opposite ends of the primary winding of the transformer, respectively, a first diode connected across a series-connected circuit consisting of the first switching element and the second switching element, a second diode connected across another series-connected circuit consisting of the first switching element and the third switching element, and a third diode connected between the middle point of the primary winding of the transformer and the common joint of the second switching element and the third switching element.
Claim 3
Dependent Claim
36 words
A stationary inverter according to claim 1, wherein said controlled switching elements are all transistors, and said one terminal of the first switching element is an emitter thereof and the opposite terminal is a collector thereof.
Claim 4
Dependent Claim
15 words
A stationary inverter according to claim 1, wherein said controlled switching elements are all thyristors.
References Cited (Backward Citations)
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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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |