GB904482A - Electric filter for direct-current circuits - Google Patents

Electric filter for direct-current circuits

Info

Publication number
GB904482A
GB904482A GB3955660A GB3955660A GB904482A GB 904482 A GB904482 A GB 904482A GB 3955660 A GB3955660 A GB 3955660A GB 3955660 A GB3955660 A GB 3955660A GB 904482 A GB904482 A GB 904482A
Authority
GB
United Kingdom
Prior art keywords
voltage
source
capacitors
filter
series
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
GB3955660A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB904482A publication Critical patent/GB904482A/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
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/52—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using discharge tubes in series with the load as final control devices
    • 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
    • H02M1/14—Arrangements for reducing ripples from dc input or output

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)

Abstract

904,482. Smoothing direct current. BROWN, BOVERI & CIE. A.G. Nov. 17, 1960 [Nov. 20, 1959], No. 39556/60. Class 38 (2). In order to reduce the potential across shunt capacitors in a filter for removing A.C. components from a D.C. supply, the capacitors are connected in series with a separate D.C. source. In the simplest embodiment a D.C. source 4 of opposite polarity to the main D.C. source is connected in series with the capacitors 1 which, together with inductors 2, 3, form the filter. The auxiliary voltage may be varied with the main D.C. voltage to provide optimum compensation under all voltage conditions. To this end, the D.C. source 4 may be connected in series with a valve 5 and anode load 9. The anode current is regulated by a control box 6 which may be connected so as to respond to the total main D.C. voltage or to the voltage across the capacitors 1. The control box 6 may embody a filter to prevent interference by harmonics. The valve circuit may be replaced by a transistor circuit.
GB3955660A 1959-11-20 1960-11-17 Electric filter for direct-current circuits Expired GB904482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH8085359A CH374416A (en) 1959-11-20 1959-11-20 Electric filter for DC circuits

Publications (1)

Publication Number Publication Date
GB904482A true GB904482A (en) 1962-08-29

Family

ID=4538286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3955660A Expired GB904482A (en) 1959-11-20 1960-11-17 Electric filter for direct-current circuits

Country Status (2)

Country Link
CH (1) CH374416A (en)
GB (1) GB904482A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005146A2 (en) * 1998-11-27 2000-05-31 DORNIER GmbH Filter for DC converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005146A2 (en) * 1998-11-27 2000-05-31 DORNIER GmbH Filter for DC converter
EP1005146A3 (en) * 1998-11-27 2003-09-03 Astrium GmbH Filter for DC converter

Also Published As

Publication number Publication date
CH374416A (en) 1964-01-15

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