GB1051629A - - Google Patents
Info
- Publication number
- GB1051629A GB1051629A GB1051629DA GB1051629A GB 1051629 A GB1051629 A GB 1051629A GB 1051629D A GB1051629D A GB 1051629DA GB 1051629 A GB1051629 A GB 1051629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thyristor
- inductor
- diode
- conducting
- turn
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 abstract 2
- 238000009499 grossing Methods 0.000 abstract 2
- 230000001960 triggered effect Effects 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/125—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/135—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/137—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
1,051,629. Rectifying. MULLARD Ltd. Oct. 21, 1964, No. 42889/64. Heading H2F. [Also in Division G3] A D.C. supply is derived from an A.C. source by way of a rectifier 2, a filter 3, a chopper circuit 4, and a smoothing circuit 8, the output voltage being automatically stabilized by correctively varying the trigger rate of the chopper circuit 4 which includes a load thyristor 10 and a commutating thyristor 11 associated with a commutating capacitor 12, a diode 14, an inductor 13 and resistors 15, 16. The smoothing circuit 8 comprises an inductor 17, a capacitor 18 and a free-wheeling diode 19 connected to be non-conducting when the thyristor 10 is conducting. On heavy load, when thyristor 11 is triggered on to turn off thyristor 10, the induced E.M.F. across inductor 17 is of such polarity as to force diode 19 to conduct. This holds the cathode potential of thyristor 10 at earth potential, allowing the thyristor to turn off rapidly and preventing commutation failure due to lack of reverse bias on thyristor 10 for a sufficient period.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1051629A true GB1051629A (en) |
Family
ID=1756506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1051629D Active GB1051629A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1051629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4087726A (en) * | 1975-08-07 | 1978-05-02 | Jeumont-Schneider | Constant-frequency current choppers for low-rate supply of an inductive load |
| US4135236A (en) * | 1977-09-15 | 1979-01-16 | Litton Industrial Products Inc. | DC-to-DC chopper circuit |
-
0
- GB GB1051629D patent/GB1051629A/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4087726A (en) * | 1975-08-07 | 1978-05-02 | Jeumont-Schneider | Constant-frequency current choppers for low-rate supply of an inductive load |
| US4135236A (en) * | 1977-09-15 | 1979-01-16 | Litton Industrial Products Inc. | DC-to-DC chopper circuit |
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