GB956984A - Improvements in electrical supply and control devices - Google Patents

Improvements in electrical supply and control devices

Info

Publication number
GB956984A
GB956984A GB2889661A GB2889661A GB956984A GB 956984 A GB956984 A GB 956984A GB 2889661 A GB2889661 A GB 2889661A GB 2889661 A GB2889661 A GB 2889661A GB 956984 A GB956984 A GB 956984A
Authority
GB
United Kingdom
Prior art keywords
transformer
capacitor
winding
load
current
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
GB2889661A
Inventor
John Alfred Field
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.)
Mettoy Co Ltd
Original Assignee
Mettoy 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 Mettoy Co Ltd filed Critical Mettoy Co Ltd
Priority to GB2889661A priority Critical patent/GB956984A/en
Publication of GB956984A publication Critical patent/GB956984A/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
    • 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
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/066—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Toys (AREA)

Abstract

956,984. Excess current protection; transformer arrangements. METTOY CO. Ltd. Nov. 7, 1962 [Aug. 10, 1961], No. 28896/61. Heading H2H. A control system for supplying a load such as a toy train comprises a transformer whose primary winding 15 is in series with a capacitor 14, the impedance of the capacitor being chosen in relation to the input impedance of the transformer such that the primary current is lower when the secondary winding is short-circuited than when the secondary carries no load. A variable resistor 13 controls the reversible D.C. output supplied through rectifiers 22, 23 and change-over switch 24 to the terminals 27, 28. A capacitor discharge resistor 29 is provided. Theoretical considerations of the transformer design and basic circuit are discussed and typical graphs of transformer secondary voltage and primary current against secondary current are given, Fig. 2 (not shown). Additional load control may be provided by a variable resistor across the primary winding or across a tertiary winding.
GB2889661A 1961-08-10 1961-08-10 Improvements in electrical supply and control devices Expired GB956984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2889661A GB956984A (en) 1961-08-10 1961-08-10 Improvements in electrical supply and control devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2889661A GB956984A (en) 1961-08-10 1961-08-10 Improvements in electrical supply and control devices

Publications (1)

Publication Number Publication Date
GB956984A true GB956984A (en) 1964-04-29

Family

ID=10282931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2889661A Expired GB956984A (en) 1961-08-10 1961-08-10 Improvements in electrical supply and control devices

Country Status (1)

Country Link
GB (1) GB956984A (en)

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