GB681148A - Improvements in or relating to means for suppressing ripple on electric supply systems - Google Patents

Improvements in or relating to means for suppressing ripple on electric supply systems

Info

Publication number
GB681148A
GB681148A GB483949A GB483949A GB681148A GB 681148 A GB681148 A GB 681148A GB 483949 A GB483949 A GB 483949A GB 483949 A GB483949 A GB 483949A GB 681148 A GB681148 A GB 681148A
Authority
GB
United Kingdom
Prior art keywords
ripple
amplifier
frequencies
relating
feb
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
GB483949A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB483949A priority Critical patent/GB681148A/en
Publication of GB681148A publication Critical patent/GB681148A/en
Expired legal-status Critical Current

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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • H02M1/15—Arrangements for reducing ripples from dc input or output using active elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)
  • Amplifiers (AREA)

Abstract

681,148. Converting. GENERAL ELECTRIC CO., Ltd., and GILCHRIST, D. C. Feb. 16, 1950 [Feb. 22, 1949], No. 4839/49. Class 38 (ii). In a system for suppressing ripple in a supply system, of the kind wherein ripple from the supply is applied to a valve or other electric amplifier (e.g. a magnetic amplifier) which injects its output into the system in opposition to the ripple therein, the amplifier is provided with means for rendering it more responsive to one or more selected frequencies, or band of frequencies, than to others. As shown in Fig. 3, the ripple on a D.C. supply line 12, 13 fed by a compound wound machine 10, 11, 14 is reduced by a two-stage valve amplifier 22, 29 which receives the ripple input voltage over condenser 16 and feeds it back with phase reversal to the series commutating field 14 by transformer 34. The gain of the amplifier is increased by a positive and frequency-selective feedback circuit 37-40. The amplifier may be tuned to one or more particular ripple frequencies.
GB483949A 1949-02-22 1949-02-22 Improvements in or relating to means for suppressing ripple on electric supply systems Expired GB681148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB483949A GB681148A (en) 1949-02-22 1949-02-22 Improvements in or relating to means for suppressing ripple on electric supply systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB483949A GB681148A (en) 1949-02-22 1949-02-22 Improvements in or relating to means for suppressing ripple on electric supply systems

Publications (1)

Publication Number Publication Date
GB681148A true GB681148A (en) 1952-10-22

Family

ID=9784757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB483949A Expired GB681148A (en) 1949-02-22 1949-02-22 Improvements in or relating to means for suppressing ripple on electric supply systems

Country Status (1)

Country Link
GB (1) GB681148A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168556B (en) * 1958-02-06 1964-04-23 Agency Ind Science Techn Device for eliminating harmonic voltages in an alternating current network
FR2786337A1 (en) * 1998-11-19 2000-05-26 Cit Alcatel Device and method for reducing electro-magnetic interference emitted by electronic power equipment, such as current converters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168556B (en) * 1958-02-06 1964-04-23 Agency Ind Science Techn Device for eliminating harmonic voltages in an alternating current network
FR2786337A1 (en) * 1998-11-19 2000-05-26 Cit Alcatel Device and method for reducing electro-magnetic interference emitted by electronic power equipment, such as current converters

Similar Documents

Publication Publication Date Title
JPS51122745A (en) Dc constant-voltage power source circuit
GB681148A (en) Improvements in or relating to means for suppressing ripple on electric supply systems
ES444873A1 (en) Circuit arrangement in a television receiver, provided with a line deflection circuit and a switched supply voltage circuit
GB934475A (en) Adjustable level radio transmitter gain control
ES321500A1 (en) Transistor amplifiers having both current and voltage responsive feedback provisions
GB800412A (en) Improvements in or relating to pulse current limiters
SU574113A1 (en) Device for pulse supply of electromagnet
SU140099A1 (en) Regenerative frequency divider
GB1181262A (en) Inductive Electric Apparatus
GB637124A (en) Improvements in and relating to electron accelerators
GB1025278A (en) Electric amplifier
GB636366A (en) Improvements relating to regulators for dynamos
GB707878A (en) Improvements in or relating to voltage stabilizing systems
GB1050941A (en)
GB929543A (en) Control of induction motors
GB762042A (en) Improvements in or relating to magnetic speed regulators
GB996583A (en) Circuit arrangement with a magnetron
GB450061A (en) Improvements in thermionic valve or tube amplifiers and the like
GB445791A (en) Improvements in or relating to means for controlling vapour arc convertors
GB1048515A (en) Circuit arrangement for switching over the operating modes of a home recorder
GB895218A (en) Improvements in electric remote control devices
KR790000784B1 (en) Voltage reduction circuit for deflection yoke
GB793458A (en) Improvements in or relating to the speed control of electric motors
GB1119496A (en) Improvements in or relating to transistor amplifiers
GB992440A (en) Improvements in and relating to electrical heating apparatus