NO955012L - Switching circuit - Google Patents
Switching circuitInfo
- Publication number
- NO955012L NO955012L NO955012A NO955012A NO955012L NO 955012 L NO955012 L NO 955012L NO 955012 A NO955012 A NO 955012A NO 955012 A NO955012 A NO 955012A NO 955012 L NO955012 L NO 955012L
- Authority
- NO
- Norway
- Prior art keywords
- circuit
- switching circuit
- voltage
- autotransformer
- resistor
- 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
- 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
- H02M5/275—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 triode or transistor type requiring continuous application of a control signal
- H02M5/293—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
-
- 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
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/40—Controlling the intensity of light discontinuously
- H05B41/42—Controlling the intensity of light discontinuously in two steps only
Abstract
Svitsjkrets for bruk ved en autotransformator for glatt overgang av spenningsutgangen fra en krets av enten likestrøm- eller vekselstrømtypen mellom en høyrere og lavere spenning. Kretsen innbefatter i det minste en, fortrinnsvis to variable resistorer (13) innbefattende en første halvledersvitsj (10), en induktor (11) og en resistor (12), hvor den variable resistoren (13) er forbundet med ledesiden til svitsjen og hvor kretsen er forbundet med spenningsutgangen til en autotransformator. Dersom de anvendte halvledersvitsjene er felteffekttransistorer er den variable resistoren (13) anbrakt innenfor en brolikeretter (D2-D5). Overgangstiden for bevegelse av spenningen mellom to nivåer er tilnærmet ett sekund.Switching circuit for use with an autotransformer for smooth transition of voltage output from a circuit of either DC or AC type between a higher and lower voltage. The circuit includes at least one, preferably two variable resistors (13) including a first semiconductor switch (10), an inductor (11) and a resistor (12), wherein the variable resistor (13) is connected to the lead side of the switch and the circuit is connected to the voltage output of an autotransformer. If the semiconductor switches used are field power transistors, the variable resistor (13) is located within a bridge rectifier (D2-D5). The transition time for moving the voltage between two levels is approximately one second.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ247913A NZ247913A (en) | 1993-06-17 | 1993-06-17 | Softly switched voltage output circuit with autotransformer |
PCT/NZ1994/000060 WO1995001084A1 (en) | 1993-06-17 | 1994-06-14 | Soft switching circuitry |
Publications (2)
Publication Number | Publication Date |
---|---|
NO955012L true NO955012L (en) | 1995-12-11 |
NO955012D0 NO955012D0 (en) | 1995-12-11 |
Family
ID=19924387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO955012A NO955012D0 (en) | 1993-06-17 | 1995-12-11 | Switching circuit |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0704144A4 (en) |
AU (1) | AU673612B2 (en) |
CA (1) | CA2164819C (en) |
FI (1) | FI956017A0 (en) |
IL (1) | IL109986A (en) |
IN (1) | IN184266B (en) |
NO (1) | NO955012D0 (en) |
NZ (1) | NZ247913A (en) |
WO (1) | WO1995001084A1 (en) |
ZA (1) | ZA944282B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITRM20040371A1 (en) | 2004-07-21 | 2004-10-21 | Seko Italia S P A | DRIVING DEVICE FOR AN ELECTROMAGNET, IN PARTICULAR FOR THE OPERATION OF PUMPS. |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3283234A (en) * | 1964-01-10 | 1966-11-01 | Gen Electric | Control for reversible motor with instantaneous current limit |
US3921035A (en) * | 1974-01-15 | 1975-11-18 | Esquire Inc | Solid state switching circuit |
US4201938A (en) * | 1978-10-02 | 1980-05-06 | Siemens-Allis, Inc. | Voltage regulator which eliminates arcing during tap changes |
CH650888A5 (en) * | 1980-03-25 | 1985-08-15 | Rudolf Muehling | Power changeover device for gas-discharge lamps |
US4513224A (en) * | 1982-09-22 | 1985-04-23 | Pacific Power Control, Inc. | Fluorescent-lighting-system voltage controller |
US4701645A (en) * | 1985-01-24 | 1987-10-20 | Cox & Company, Inc. | Switching circuit with low conducted electromagnetic interference characteristics |
US4736268A (en) * | 1986-12-18 | 1988-04-05 | Westinghouse Electric Corp. | High frequency AC solid state switch |
US5047694A (en) * | 1989-06-30 | 1991-09-10 | Hubbell Incorporated | Lamp starting circuit |
GB2242587B (en) * | 1990-02-01 | 1994-05-25 | Mole Valley Systems Ltd | Power control circuit for reactive loads |
-
1993
- 1993-06-17 NZ NZ247913A patent/NZ247913A/en unknown
-
1994
- 1994-06-10 IL IL10998694A patent/IL109986A/en not_active IP Right Cessation
- 1994-06-14 IN IN506MA1994 patent/IN184266B/en unknown
- 1994-06-14 EP EP94919015A patent/EP0704144A4/en not_active Withdrawn
- 1994-06-14 AU AU70097/94A patent/AU673612B2/en not_active Ceased
- 1994-06-14 WO PCT/NZ1994/000060 patent/WO1995001084A1/en not_active Application Discontinuation
- 1994-06-14 CA CA002164819A patent/CA2164819C/en not_active Expired - Fee Related
- 1994-06-16 ZA ZA944282A patent/ZA944282B/en unknown
-
1995
- 1995-12-11 NO NO955012A patent/NO955012D0/en unknown
- 1995-12-14 FI FI956017A patent/FI956017A0/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ZA944282B (en) | 1995-02-10 |
NZ247913A (en) | 1996-07-26 |
NO955012D0 (en) | 1995-12-11 |
AU673612B2 (en) | 1996-11-14 |
WO1995001084A1 (en) | 1995-01-05 |
FI956017A (en) | 1995-12-14 |
EP0704144A4 (en) | 1996-12-04 |
CA2164819C (en) | 1998-11-10 |
IL109986A0 (en) | 1994-10-07 |
EP0704144A1 (en) | 1996-04-03 |
IL109986A (en) | 1999-04-11 |
CA2164819A1 (en) | 1995-01-05 |
AU7009794A (en) | 1995-01-17 |
IN184266B (en) | 2000-07-22 |
FI956017A0 (en) | 1995-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK1146630T3 (en) | Method for regulating the output current and / or the output voltage of a switchmode voltage supply | |
ATE150226T1 (en) | CIRCUIT ARRANGEMENT FOR LIMITING THE RUNNING CURRENT AND THE OVERVOLTAGE OF AN ELECTRONIC BALLAST | |
DE3479776D1 (en) | Electronic switching device, preferably operating without making contact | |
DE3584401D1 (en) | TRANSFORMER CIRCUIT. | |
ZA978695B (en) | Method and device for correcting the DC offset of a converter. | |
ATE120331T1 (en) | INVERTER FOR POWERING TWO GAS AND/OR STEAM DISCHARGE LAMPS. | |
ATE115787T1 (en) | CIRCUIT ARRANGEMENT FOR POWERING A LOAD. | |
ATE176371T1 (en) | ELECTRONIC BALLAST | |
NO955012L (en) | Switching circuit | |
EP0190904A3 (en) | Series resonant converter | |
ATE122198T1 (en) | SWITCHING ARRANGEMENT. | |
ATE243384T1 (en) | ELECTRONIC SWITCHING POWER SUPPLY | |
ATE213584T1 (en) | ELECTRONIC TRANSFORMER | |
ATE197654T1 (en) | ELECTRONIC BALLAST WITH RUNNING CURRENT LIMITATION AND/OR OVERVOLTAGE PROTECTION | |
SU1686660A1 (en) | Ac to dc voltage converter | |
NO991851L (en) | Electronic power control device, with a switch mode power supply | |
RU1780588C (en) | Pulsating supply source | |
KR930012265U (en) | DC link voltage control circuit of inverter | |
RU92015348A (en) | AC VOLTAGE CONVERTER TO STABILIZED CONSTANT | |
SG48414A1 (en) | Spark suppressor circuit for protection of an electrical switch and electrical thermal appliance comprising such a circuit | |
ATE223140T1 (en) | ELECTRONIC TRANSFORMER | |
DE50009329D1 (en) | circuitry | |
JPS57170069A (en) | Dc electric power converter | |
KR920015965A (en) | Electronic neon ballast | |
JPS57206270A (en) | Phase control circuit |