GB9101252D0 - Control circuit for reactive loads - Google Patents
Control circuit for reactive loadsInfo
- Publication number
- GB9101252D0 GB9101252D0 GB919101252A GB9101252A GB9101252D0 GB 9101252 D0 GB9101252 D0 GB 9101252D0 GB 919101252 A GB919101252 A GB 919101252A GB 9101252 A GB9101252 A GB 9101252A GB 9101252 D0 GB9101252 D0 GB 9101252D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- control circuit
- reactive loads
- loads
- reactive
- circuit
- 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.)
- Granted
Links
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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
- H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
- H02M5/2573—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 control circuit
- H02M5/2576—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 control circuit with digital control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/13—Modifications for switching at zero crossing
- H03K17/136—Modifications for switching at zero crossing in thyristor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
- H03K17/166—Soft switching
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9101252A GB2242587B (en) | 1990-02-01 | 1991-01-21 | Power control circuit for reactive loads |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909002228A GB9002228D0 (en) | 1990-02-01 | 1990-02-01 | A switching circuit for inductive loads |
GB9101252A GB2242587B (en) | 1990-02-01 | 1991-01-21 | Power control circuit for reactive loads |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9101252D0 true GB9101252D0 (en) | 1991-03-06 |
GB2242587A GB2242587A (en) | 1991-10-02 |
GB2242587B GB2242587B (en) | 1994-05-25 |
Family
ID=26296580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9101252A Expired - Fee Related GB2242587B (en) | 1990-02-01 | 1991-01-21 | Power control circuit for reactive loads |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2242587B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ247913A (en) * | 1993-06-17 | 1996-07-26 | Southpower Ltd | Softly switched voltage output circuit with autotransformer |
IT1271151B (en) * | 1994-03-21 | 1997-05-27 | Bticino Spa | DEVICE FOR THE REGULATION OF ENERGY TRANSFERRED TO AN ELECTRIC LOAD |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB948467A (en) * | 1960-11-17 | 1964-02-05 | Pye Ltd | Electromagnetic brake control circuit |
GB1167132A (en) * | 1966-05-11 | 1969-10-15 | Int Computers Ltd | Improvements in or relating to Electronic Circuits for Switching an Inductive Load. |
DE2135858C3 (en) * | 1971-07-17 | 1980-02-28 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Transistor switching device for switching an inductive direct current circuit |
GB1470065A (en) * | 1975-10-06 | 1977-04-14 | Hadland Ltd J | Electrical pulse generators |
GB2103443A (en) * | 1981-07-31 | 1983-02-16 | Philips Electronic Associated | Solenoid drive circuit |
DE3515039A1 (en) * | 1985-04-25 | 1986-10-30 | Klöckner, Wolfgang, Dr., 8033 Krailling | METHOD AND CIRCUIT FOR OPERATING A GAS EXCHANGE VALVE |
JPH0720060B2 (en) * | 1985-08-14 | 1995-03-06 | 株式会社東芝 | Output circuit device |
US4877980A (en) * | 1988-03-10 | 1989-10-31 | Advanced Micro Devices, Inc. | Time variant drive circuit for high speed bus driver to limit oscillations or ringing on a bus |
-
1991
- 1991-01-21 GB GB9101252A patent/GB2242587B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2242587A (en) | 1991-10-02 |
GB2242587B (en) | 1994-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960121 |