JPS5455151A - Insulation-type dc amplifier - Google Patents

Insulation-type dc amplifier

Info

Publication number
JPS5455151A
JPS5455151A JP12148377A JP12148377A JPS5455151A JP S5455151 A JPS5455151 A JP S5455151A JP 12148377 A JP12148377 A JP 12148377A JP 12148377 A JP12148377 A JP 12148377A JP S5455151 A JPS5455151 A JP S5455151A
Authority
JP
Japan
Prior art keywords
signal
input
output
amplifier
winding
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.)
Pending
Application number
JP12148377A
Other languages
Japanese (ja)
Inventor
Hiromi Chiba
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
Priority to JP12148377A priority Critical patent/JPS5455151A/en
Publication of JPS5455151A publication Critical patent/JPS5455151A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers

Landscapes

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

Abstract

PURPOSE:To insulate an input signal from an output signal in terms of direct current by intermittently amplifying the different signal between the input signal and feedback signal and inputting it to an input winding. CONSTITUTION:When amplifier 3 switching synchronizing with an intermittent voltage at a half period of a repetitive frequency is applied with DC input signal Vi and DC feedback signal Vf at input terminals 1 and 2 respectively, output signal (e0) appears at output terminal 11 of amplifier 3. This square-wave signal (e0) is supplied to input winding 8 of insulating transformer 7. Therefore, feedback signal Vf appearing at feedback winding 9 of transformer 7 is smoothed and then applied to input terminal 2 of amplifier 3. Further, output signal Vo appearing at output winding 10 of transformer 7 is also smoothed 13 and led to output terminal 14. Consequently, DC output signal Vo insulated from input signal Vi in terms of direct current can be obtained from output terminal 14.
JP12148377A 1977-10-12 1977-10-12 Insulation-type dc amplifier Pending JPS5455151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12148377A JPS5455151A (en) 1977-10-12 1977-10-12 Insulation-type dc amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12148377A JPS5455151A (en) 1977-10-12 1977-10-12 Insulation-type dc amplifier

Publications (1)

Publication Number Publication Date
JPS5455151A true JPS5455151A (en) 1979-05-02

Family

ID=14812266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12148377A Pending JPS5455151A (en) 1977-10-12 1977-10-12 Insulation-type dc amplifier

Country Status (1)

Country Link
JP (1) JPS5455151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58210704A (en) * 1982-06-01 1983-12-08 Nec Corp Insulation amplifying circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5043868A (en) * 1973-08-22 1975-04-19
JPS5076964A (en) * 1973-10-05 1975-06-24

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5043868A (en) * 1973-08-22 1975-04-19
JPS5076964A (en) * 1973-10-05 1975-06-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58210704A (en) * 1982-06-01 1983-12-08 Nec Corp Insulation amplifying circuit

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