JPS5555606A - Dc amplifier of switching control type - Google Patents

Dc amplifier of switching control type

Info

Publication number
JPS5555606A
JPS5555606A JP12930578A JP12930578A JPS5555606A JP S5555606 A JPS5555606 A JP S5555606A JP 12930578 A JP12930578 A JP 12930578A JP 12930578 A JP12930578 A JP 12930578A JP S5555606 A JPS5555606 A JP S5555606A
Authority
JP
Japan
Prior art keywords
input
voltage
output
sum
pulse width
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
JP12930578A
Other languages
Japanese (ja)
Inventor
Taiki Uchiumi
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP12930578A priority Critical patent/JPS5555606A/en
Publication of JPS5555606A publication Critical patent/JPS5555606A/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
    • H03F3/40—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with tubes only

Landscapes

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

Abstract

PURPOSE:To keep constant the sum of input and output signals with high speed response and stability, by applying the voltage corresponding to the sum of the currents which are in response to the input and output voltages, to one input terminal of the pulse width modulation circuit. CONSTITUTION:The pulse width modulation circuit 6 compares the amplitude of the voltages fed to one input terminal and to another input, reference voltage, and produces the pulse width signal on the result. Further, the output signal is inputted to the primary coil of the conversion transformer 9 to obtain the AC voltage from the secondary coil. This AC output voltage is rectified 10 to obtain the DC output voltage, and the voltage co-responding to the sum currents in response to the input and output voltages is fed to one input terminal of the pulse width modulation circuit 6. Thus, the sum of input and output signals can be kept constant with high speed response and stability.
JP12930578A 1978-10-20 1978-10-20 Dc amplifier of switching control type Pending JPS5555606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12930578A JPS5555606A (en) 1978-10-20 1978-10-20 Dc amplifier of switching control type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12930578A JPS5555606A (en) 1978-10-20 1978-10-20 Dc amplifier of switching control type

Publications (1)

Publication Number Publication Date
JPS5555606A true JPS5555606A (en) 1980-04-23

Family

ID=15006268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12930578A Pending JPS5555606A (en) 1978-10-20 1978-10-20 Dc amplifier of switching control type

Country Status (1)

Country Link
JP (1) JPS5555606A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52132661A (en) * 1976-04-28 1977-11-07 Fujitsu Ltd Amplifier circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52132661A (en) * 1976-04-28 1977-11-07 Fujitsu Ltd Amplifier circuit

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