JPS579107A - Amplifying circuit - Google Patents

Amplifying circuit

Info

Publication number
JPS579107A
JPS579107A JP8248280A JP8248280A JPS579107A JP S579107 A JPS579107 A JP S579107A JP 8248280 A JP8248280 A JP 8248280A JP 8248280 A JP8248280 A JP 8248280A JP S579107 A JPS579107 A JP S579107A
Authority
JP
Japan
Prior art keywords
signal
fine
voltage
capacitor
amplifier
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
JP8248280A
Other languages
Japanese (ja)
Inventor
Yoshizo Niihori
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8248280A priority Critical patent/JPS579107A/en
Publication of JPS579107A publication Critical patent/JPS579107A/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
    • H03F3/70—Charge amplifiers

Landscapes

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

Abstract

PURPOSE:To make amplification for fine current stable with a simple circuit, by quantitizing a signal energy through the integration of a fine voltage for a given period and converting the fine signal into a signal with comparatively high level. CONSTITUTION:An input signal having a fine amplitude is stored in a capacitor 2. The charging voltage of the capacitor 2 changes with a time constant determined with the capacitor 2 and the switching period of a switch 3 to produce a signal voltage having amplitude possible for stable amplification. Although this signal voltage is amplified at an amplifier 4, since the signal level is comparatively greater, the effect of an offset and drift of the amplifier 4 is less for achieving stable operation.
JP8248280A 1980-06-18 1980-06-18 Amplifying circuit Pending JPS579107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8248280A JPS579107A (en) 1980-06-18 1980-06-18 Amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8248280A JPS579107A (en) 1980-06-18 1980-06-18 Amplifying circuit

Publications (1)

Publication Number Publication Date
JPS579107A true JPS579107A (en) 1982-01-18

Family

ID=13775726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8248280A Pending JPS579107A (en) 1980-06-18 1980-06-18 Amplifying circuit

Country Status (1)

Country Link
JP (1) JPS579107A (en)

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