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GB1476699A - Power supply system - Google Patents

Power supply system

Info

Publication number
GB1476699A
GB1476699A GB5571474A GB5571474A GB1476699A GB 1476699 A GB1476699 A GB 1476699A GB 5571474 A GB5571474 A GB 5571474A GB 5571474 A GB5571474 A GB 5571474A GB 1476699 A GB1476699 A GB 1476699A
Authority
GB
United Kingdom
Prior art keywords
voltage
supply
energized
relay
primary
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
Application number
GB5571474A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to GB5571474A priority Critical patent/GB1476699A/en
Priority to DE19752500065 priority patent/DE2500065A1/en
Priority to FR7500120A priority patent/FR2296928A1/en
Publication of GB1476699A publication Critical patent/GB1476699A/en
Expired legal-status Critical Current

Links

Classifications

    • 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 
    • G05F1/12—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC
    • G05F1/14—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices
    • 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 
    • G05F1/12—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC
    • G05F1/14—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices
    • G05F1/16—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/20—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices 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 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/563—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including two stages of regulation at least one of which is output level responsive, e.g. coarse and fine regulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/006—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of too high or too low voltage
    • H02H11/007—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of too high or too low voltage involving automatic switching for adapting the protected apparatus to the supply voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

1476699 Electricity supply systems MAT. SUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 Dec 1974 55714/74 Heading H2H [Also in Division G3] In a power supply system for operation on at least two different supply voltages, the number of secondary windings in circuit of a power transformer are automatically selected in response to the supply voltage so as to provide a substantially constant voltage for different predetermined values of applied voltage which substantially constant voltage is then rectified at 9 ... 12 and voltage stabilized at 14 ... 16. As described, when the supply voltage to primary 1 is changed from 100-200 V, relay 8 is energized so as to select tapping 2b on the secondary 2 and thus feed the same voltage to the bridge rectifier 9 ... 12. In Fig. 3A, relay 8 is energized from the secondary winding 2, tappings of which cater for supply voltages of 100, 120, 220 and 240. Figs. 2A, 2B and 3B-4B (not shown) relate to systems in which the number of secondary windings is selected, in some cases in response to the voltage at a tapping on the primary.
GB5571474A 1974-12-24 1974-12-24 Power supply system Expired GB1476699A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5571474A GB1476699A (en) 1974-12-24 1974-12-24 Power supply system
DE19752500065 DE2500065A1 (en) 1974-12-24 1975-01-02 Power pack for electric equipment - has detector generating voltage proportional to that at the transformer primary winding
FR7500120A FR2296928A1 (en) 1974-12-24 1975-01-03 ELECTRICAL POWER SUPPLY

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB5571474A GB1476699A (en) 1974-12-24 1974-12-24 Power supply system
DE19752500065 DE2500065A1 (en) 1974-12-24 1975-01-02 Power pack for electric equipment - has detector generating voltage proportional to that at the transformer primary winding
FR7500120A FR2296928A1 (en) 1974-12-24 1975-01-03 ELECTRICAL POWER SUPPLY

Publications (1)

Publication Number Publication Date
GB1476699A true GB1476699A (en) 1977-06-16

Family

ID=64076357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5571474A Expired GB1476699A (en) 1974-12-24 1974-12-24 Power supply system

Country Status (3)

Country Link
DE (1) DE2500065A1 (en)
FR (1) FR2296928A1 (en)
GB (1) GB1476699A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801462A1 (en) * 1978-01-13 1979-07-19 Paul Petersen Automatic mains voltage changeover for razor - with low voltage relay connected to ensure reliable operation when high to low voltage ratio is less than 2
GB2125194A (en) * 1982-08-05 1984-02-29 Plessey Co Plc Regulated DC power supply
GB2157031A (en) * 1984-02-23 1985-10-16 Rca Corp Variable input voltage regulator circuit
GB2221360A (en) * 1988-07-26 1990-01-31 Ma Gil Pyung Constant power control of electric heater for alternative supply voltages
GB2235597A (en) * 1989-08-17 1991-03-06 Fuji Xerox Co Ltd Image forming apparatus
GB2237903A (en) * 1989-03-11 1991-05-15 Smiths Industries Plc Regulated power supply
GB2238635A (en) * 1989-11-27 1991-06-05 Uniqey A regulated power supply
CN102306544A (en) * 2011-05-24 2012-01-04 天津三星电子有限公司 Transformer with conveniently adjusted output

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813774C2 (en) * 1978-03-30 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Mains connection device for electric toy and model trains operated with direct current
FR2430676A1 (en) * 1978-07-07 1980-02-01 Cilas Capacitor charging circuit - has charging rate maintained by motor driven transformer switch or cursor
DE3584401D1 (en) * 1984-07-24 1991-11-21 Voigt & Haeffner Gmbh TRANSFORMER CIRCUIT.
US4888545A (en) * 1988-06-01 1989-12-19 International Business Machines Corp. Improved tap switching power supply
JP3031647B2 (en) * 1992-02-08 2000-04-10 日立粉末冶金株式会社 Extruder for powder material
DE9319889U1 (en) * 1993-12-23 1995-05-04 Siemens AG, 80333 München Series circuit transformer
CN102592807B (en) * 2012-02-09 2014-07-16 山东大学 On-load tap switch of saturable reactor with switch characteristics

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801462A1 (en) * 1978-01-13 1979-07-19 Paul Petersen Automatic mains voltage changeover for razor - with low voltage relay connected to ensure reliable operation when high to low voltage ratio is less than 2
GB2125194A (en) * 1982-08-05 1984-02-29 Plessey Co Plc Regulated DC power supply
GB2157031A (en) * 1984-02-23 1985-10-16 Rca Corp Variable input voltage regulator circuit
US4590546A (en) * 1984-02-23 1986-05-20 Rca Corporation Variable input voltage regulator circuit
GB2221360A (en) * 1988-07-26 1990-01-31 Ma Gil Pyung Constant power control of electric heater for alternative supply voltages
GB2221360B (en) * 1988-07-26 1993-01-27 Ma Gil Pyung Constant power supply unit of electric heating apparatus
GB2237903A (en) * 1989-03-11 1991-05-15 Smiths Industries Plc Regulated power supply
GB2235597A (en) * 1989-08-17 1991-03-06 Fuji Xerox Co Ltd Image forming apparatus
US5229577A (en) * 1989-08-17 1993-07-20 Fuji Xerox Co., Ltd. Image forming apparatus utilizing an ac voltage control circuit
GB2238635A (en) * 1989-11-27 1991-06-05 Uniqey A regulated power supply
GB2238635B (en) * 1989-11-27 1993-09-22 Uniqey Electrical power sources
CN102306544A (en) * 2011-05-24 2012-01-04 天津三星电子有限公司 Transformer with conveniently adjusted output

Also Published As

Publication number Publication date
FR2296928A1 (en) 1976-07-30
FR2296928B3 (en) 1977-09-30
DE2500065A1 (en) 1976-07-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee