GB720121A - Improvements in or relating to magnetic amplifiers - Google Patents

Improvements in or relating to magnetic amplifiers

Info

Publication number
GB720121A
GB720121A GB1944752A GB1944752A GB720121A GB 720121 A GB720121 A GB 720121A GB 1944752 A GB1944752 A GB 1944752A GB 1944752 A GB1944752 A GB 1944752A GB 720121 A GB720121 A GB 720121A
Authority
GB
United Kingdom
Prior art keywords
winding
feed
control
windings
reactors
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
GB1944752A
Inventor
Frederick Roger Milsom
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.)
FURZEHILL LAB Ltd
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
FURZEHILL LAB Ltd
S Smith and Sons Ltd
S Smith and Sons England 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 FURZEHILL LAB Ltd, S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical FURZEHILL LAB Ltd
Priority to GB1944752A priority Critical patent/GB720121A/en
Publication of GB720121A publication Critical patent/GB720121A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F9/00—Magnetic amplifiers
    • H03F9/02—Magnetic amplifiers current-controlled, i.e. the load current flowing in both directions through a main coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

720,121. Magnetic amplifiers. SMITH & SONS (ENGLAND), Ltd., S., and FURZEHILL LABORATORIES, Ltd. July 29, 1953 [July 31, 1952], No. 19447/52. Class 40 (4). Rectifiers 107, 207 are connected in series with the control windings 103, 203 of two saturable reactors 1, 2, together forming a magnetic amplifier, so that the output of the amplifier is provided almost wholly by one reactor or the other in accordance with the polarity of the control signal. The two reactors are identical. The first comprises a core 101 carrying a power winding 102, a control winding 103, a feed-back winding 104 and a standing bias winding 105. The standing bias winding is connected to a D.C. source 19. The control and feed-back windings are also biased from D.C. sources 17, 18 to overcome the thresholds of the rectifiers. The power windings of the two reactors are fed by a generator 3 and the outputs are connected in opposition to the primary 5 of a transformer 6. The two transformer secondaries 11, 12 feed a phase-sensitive demodulator 13, described in Specification 703,928, [Group XL (c)], an A.C. reference input in phase with 3 being connected at 14. The D.C. output is derived from terminals 15, 16 in series with the feed-back circuit 9, 10.
GB1944752A 1952-07-31 1952-07-31 Improvements in or relating to magnetic amplifiers Expired GB720121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1944752A GB720121A (en) 1952-07-31 1952-07-31 Improvements in or relating to magnetic amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1944752A GB720121A (en) 1952-07-31 1952-07-31 Improvements in or relating to magnetic amplifiers

Publications (1)

Publication Number Publication Date
GB720121A true GB720121A (en) 1954-12-15

Family

ID=10129528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1944752A Expired GB720121A (en) 1952-07-31 1952-07-31 Improvements in or relating to magnetic amplifiers

Country Status (1)

Country Link
GB (1) GB720121A (en)

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