Patent US3622862A successfully refreshed from Google Patents.
US3622862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
By-pass connection of static converters
Assignee: ABB Norden Holding AB
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Filing: 1970-10-22
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Granted: 1971-11-23
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Expires: 1990-10-22
Abstract
Abstract A static converter composed of a converter-transformer and a rectifier bridge connected thereto has a bypass member connected in parallel with the bridge. Two series-connected rectifiers in one phase of the bridge constitute a bypass path. A direct voltage source can be connected with said two bypass rectifiers, the source having such a polarity as to furnish a current in the conducting direction of the two rectifiers.
Inventors
- 👤 Carl Ingvar Boksjo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/66; H02M7/68; H02M7/72; H02M7/75; H02M7/757; H02M7/7575; Y; Y02; Y02E; Y02E60/00; Y02E60/60
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
Static converter comprising a converter-transformer (5) and a rectifier bridge (6) connected thereto, a bypass member, the rectifier-bridge being connected in parallel with the bypass member (12), two series-connected rectifiers (62,65) in one phase of the bridge being intended to operate as a bypaSs path, comprising a direct voltage source (8), means connecting said two bypass rectifiers in series with said direct voltage source, said direct voltage source having such polarity that it tends to furnish a current in the conducting direction of the bypass rectifiers.
Claim 2
Dependent Claim
86 words
Static converter comprising a converter-transformer (5) and a rectifier bridge (6) connected thereto, a bypass member, the rectifier-bridge being connected in parallel with the bypass member (12), two series-connected rectifiers (62,65) in one phase of the bridge being intended to operate as a bypaSs path, comprising a direct voltage source (8), means connecting said two bypass rectifiers in series with said direct voltage source, said direct voltage source having such polarity that it tends to furnish a current in the conducting direction of the bypass rectifiers.
Claim 3
Dependent Claim
22 words
Static converter according to claim 1, in which connecting means connects said direct voltage source in series with the whole converter rectifier-bridge.
Claim 4
Dependent Claim
26 words
Static converter according to claim 1, including a rectifier connected in parallel with said direct voltage source having the same conducting direction as the bypass rectifiers.
Claim 5
Dependent Claim
17 words
Static converter according to claim 1, including a capacitor connected in parallel with said direct voltage source.
Claim 6
Dependent Claim
17 words
Static converter according to claim 1, comprising a resistor connected in parallel with said direct voltage source.
Claim 7
Dependent Claim
18 words
Static converter according to claim 1, comprising an overvoltage protection connected in parallel with said direct voltage source.
Claim 8
Dependent Claim
46 words
Static converter according to claim 1 having a control pulse generator connected to all said rectifiers, means to disconnect the control pulse generator from the rectifiers, and a control device for supplying control voltage to said two bypass rectifiers when said control pulse generator is disconnected.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |