GB1071667A - Improvements in and relating to static switching apparatus - Google Patents
Improvements in and relating to static switching apparatusInfo
- Publication number
- GB1071667A GB1071667A GB4264063A GB4264063A GB1071667A GB 1071667 A GB1071667 A GB 1071667A GB 4264063 A GB4264063 A GB 4264063A GB 4264063 A GB4264063 A GB 4264063A GB 1071667 A GB1071667 A GB 1071667A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thyristor
- commutating
- load
- current
- supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003068 static effect Effects 0.000 title 1
- 239000003990 capacitor Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/505—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/515—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/5157—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only wherein the extinguishing of every commutation element will be obtained by means of a commutation inductance, by starting another main commutation element in series with the first
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
1,071,667. Thyristor switching circuits. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Jan. 29, 1965 [Oct. 29, 1963; Feb. 5, 1964], Nos. 42640/63 and 4927/64. Heading H3T. [Also in Division H2] A load 1 is connected to either of two supply terminals by thyristors TH 1' TH 2 controlled by a commutating circuit L 2 , L 2 , C 2 . The saturable transformer T 1 has its primary in series with the commutating capacitor C 2 and its secondary connected through a diode bridge rectifier D 3 , D 4 , D 5' D 6 to the supply so that some of the energy absorbed in the commutating circuit is returned to the supply. The saturable choke L 1 in series with the load 1 limits the current in a thyristor which has just been fired during the interval when that thyristor would carry both the load current and the commutating current. The load current may be A.C. (if the two thyristors conduct for equal periods) or D.C. (if one thyristor conducts for a greater period than the other, so that the circuit becomes a D.C. chopper). An alternative connection of transformer T 1 and choke L 1 is disclosed (Fig. 3, not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4264063A GB1071667A (en) | 1963-10-29 | 1963-10-29 | Improvements in and relating to static switching apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4264063A GB1071667A (en) | 1963-10-29 | 1963-10-29 | Improvements in and relating to static switching apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1071667A true GB1071667A (en) | 1967-06-14 |
Family
ID=10425326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4264063A Expired GB1071667A (en) | 1963-10-29 | 1963-10-29 | Improvements in and relating to static switching apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1071667A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2834512A1 (en) * | 1977-08-10 | 1979-02-15 | Hitachi Ltd | CONVERTER |
-
1963
- 1963-10-29 GB GB4264063A patent/GB1071667A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2834512A1 (en) * | 1977-08-10 | 1979-02-15 | Hitachi Ltd | CONVERTER |
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