GB1055150A - Magnetic amplifier arrangement - Google Patents

Magnetic amplifier arrangement

Info

Publication number
GB1055150A
GB1055150A GB4566063A GB4566063A GB1055150A GB 1055150 A GB1055150 A GB 1055150A GB 4566063 A GB4566063 A GB 4566063A GB 4566063 A GB4566063 A GB 4566063A GB 1055150 A GB1055150 A GB 1055150A
Authority
GB
United Kingdom
Prior art keywords
circuit
type
smoothing
magnetic amplifier
output
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
GB4566063A
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1055150A publication Critical patent/GB1055150A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F9/00—Magnetic amplifiers

Landscapes

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

Abstract

1,055,150. Magnetic amplifiers. HITACHI Ltd. Nov. 19, 1963 [Nov. 19, 1962], No. 45660/63. Heading H3B. A feedback loop between the output and input of a magnetic amplifier includes a smoothing circuit. As shown in Fig. 2, a magnetic amplifier M having a positive feedback circuit and giving a degree of amplification which is substantially infinitely large, is provided with a feedback loop having a feedback impedance Zf which feedback loop also includes a smoothing network F. It is shown that the output of the amplifier is independent of the gain of the tuned smoothing circuit and the transient response speed is improved by selecting the gain constant of the smoothing circuit to be as large as possible and its time constant to be limited as far as possible. The smoothing circuit may take the form shown in Figs. 6, 7 (not shown), the circuit of Fig. 7 including a parallel T-type and an inverted L-type CR circuit, the parallel T-type circuit having resonance points at the basic frequency of the exciting power source for the magnetic amplifier and the L-type CR circuit at frequencies harmonic to the basic frequency. An impedance converter in the form of an emitter follower transistor circuit may be connected to the output of Fig. 7, Fig. 8 (not shown).
GB4566063A 1962-11-19 1963-11-19 Magnetic amplifier arrangement Expired GB1055150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5081562 1962-11-19

Publications (1)

Publication Number Publication Date
GB1055150A true GB1055150A (en) 1967-01-18

Family

ID=12869247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4566063A Expired GB1055150A (en) 1962-11-19 1963-11-19 Magnetic amplifier arrangement

Country Status (2)

Country Link
DE (1) DE1221289B (en)
GB (1) GB1055150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000473A (en) * 1974-06-09 1976-12-28 Shoei Electric Co., Ltd. Isolation amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000473A (en) * 1974-06-09 1976-12-28 Shoei Electric Co., Ltd. Isolation amplifier

Also Published As

Publication number Publication date
DE1221289B (en) 1966-07-21

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