ZA715486B - Electrical circuits - Google Patents
Electrical circuitsInfo
- Publication number
- ZA715486B ZA715486B ZA715486A ZA715486A ZA715486B ZA 715486 B ZA715486 B ZA 715486B ZA 715486 A ZA715486 A ZA 715486A ZA 715486 A ZA715486 A ZA 715486A ZA 715486 B ZA715486 B ZA 715486B
- Authority
- ZA
- South Africa
- Prior art keywords
- electrical circuits
- circuits
- electrical
- Prior art date
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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/75—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
- H02M7/757—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
-
- 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc 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
- H02M7/155—Conversion of ac power input into dc 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
- H02M7/162—Conversion of ac power input into dc 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 in a bridge configuration
- H02M7/1623—Conversion of ac power input into dc 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 in a bridge configuration with control circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
- H02P7/293—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC using phase control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Measurement Of Current Or Voltage (AREA)
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2042107A DE2042107C3 (de) | 1970-08-19 | 1970-08-19 | Umschaltlogik für Umkehrstrom nchter in kreisstromfreier Schaltung, insbesondere in kreisstromfreier Gegen parallelschaltung |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA715486B true ZA715486B (en) | 1972-04-26 |
Family
ID=5780675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA715486A ZA715486B (en) | 1970-08-19 | 1971-08-17 | Electrical circuits |
Country Status (7)
Country | Link |
---|---|
US (1) | US3764885A (xx) |
BE (1) | BE771307A (xx) |
DE (1) | DE2042107C3 (xx) |
FR (1) | FR2104498A5 (xx) |
GB (1) | GB1368501A (xx) |
SE (1) | SE381386B (xx) |
ZA (1) | ZA715486B (xx) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS509016A (xx) * | 1973-05-30 | 1975-01-30 | ||
DE2424825A1 (de) * | 1974-05-22 | 1975-11-27 | Siemens Ag | Schaltungsanordnung fuer den stromrichterbetrieb eines elektrowaermegeraets |
SE378950B (xx) * | 1974-01-07 | 1975-09-15 | Asea Ab | |
US4054819A (en) * | 1975-11-13 | 1977-10-18 | Sperry Rand Corporation | Motor angular velocity monitor circuit |
DE2648149A1 (de) * | 1976-10-25 | 1978-04-27 | Bosch Gmbh Robert | Steuerschaltung fuer netzgefuehrte stromrichter |
DE2827357C2 (de) * | 1978-06-22 | 1983-01-13 | Brown, Boveri & Cie Ag, 6800 Mannheim | Nullstrommelder für einen kreisstromfreien Doppelstromrichter |
DE2827358C2 (de) * | 1978-06-22 | 1983-01-13 | Brown, Boveri & Cie Ag, 6800 Mannheim | Umkehrlogikschaltung für eine Regeleinrichtung für einen kreisstromfreien Doppelstromrichter |
DD138127B1 (de) * | 1978-07-28 | 1981-03-25 | Frank Emmerling | Steueranordnung fuer den betrieb zweier antiparalleler thyristorstromrichtergruppen in drehstrombrueckenschaltung |
DE3147731C2 (de) * | 1981-12-02 | 1986-03-27 | ASR Servotron AG, Le Petit-Lancy, Genève | Digitale Stromregelschaltung |
CA1203290A (en) * | 1982-04-28 | 1986-04-15 | Yoshio Shimizu | Signal comparing circuit |
US4492878A (en) * | 1983-05-25 | 1985-01-08 | Hamel Howard L | Electrical line reversal and protection system |
US4471278A (en) * | 1983-09-14 | 1984-09-11 | General Motors Corporation | Bang-bang current regulator having extended range of regulation |
FI69944C (fi) * | 1984-06-27 | 1986-05-26 | Kone Oy | Saett att placera drosslar med luftkaerna |
DE4131823C1 (en) * | 1991-09-20 | 1993-02-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | Bidirectional power supply circuitry between AC and DC networks - holds intermediate DC at high level using two rectifiers with common connections on DC and AC sides |
US5317254A (en) * | 1992-09-17 | 1994-05-31 | Micro Control Company | Bipolar power supply |
DE4332900C1 (de) * | 1993-09-22 | 1994-12-22 | Licentia Gmbh | Verfahren zum Betrieb einer Umschaltlogik für einen Umkehrstromrichter |
EP2816728B1 (en) * | 2013-06-20 | 2020-08-05 | ABB Schweiz AG | Active gate drive circuit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543118A (en) * | 1968-03-14 | 1970-11-24 | Smith Corp A O | Dynamoelectric machine control circuit including variable response network |
US3586949A (en) * | 1968-05-23 | 1971-06-22 | Pratt And Whitney Inc | Three-phase dc motor control system |
US3568033A (en) * | 1969-10-06 | 1971-03-02 | Westinghouse Electric Corp | Apparatus and method for cycloconverter bank selection |
US3579080A (en) * | 1969-11-13 | 1971-05-18 | Allis Louis Co | Zero deadband reversing control |
-
1970
- 1970-08-19 DE DE2042107A patent/DE2042107C3/de not_active Expired
-
1971
- 1971-08-09 SE SE7110155A patent/SE381386B/xx unknown
- 1971-08-13 BE BE771307A patent/BE771307A/xx unknown
- 1971-08-16 GB GB3837371A patent/GB1368501A/en not_active Expired
- 1971-08-17 ZA ZA715486A patent/ZA715486B/xx unknown
- 1971-08-18 FR FR7130139A patent/FR2104498A5/fr not_active Expired
- 1971-08-18 US US00172720A patent/US3764885A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2042107A1 (de) | 1972-03-02 |
SE381386B (sv) | 1975-12-01 |
FR2104498A5 (xx) | 1972-04-14 |
BE771307A (fr) | 1971-12-16 |
US3764885A (en) | 1973-10-09 |
DE2042107B2 (de) | 1973-04-12 |
DE2042107C3 (de) | 1973-10-31 |
GB1368501A (en) | 1974-09-25 |
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