JPS55147012A - Amplifying circuit - Google Patents

Amplifying circuit

Info

Publication number
JPS55147012A
JPS55147012A JP5671879A JP5671879A JPS55147012A JP S55147012 A JPS55147012 A JP S55147012A JP 5671879 A JP5671879 A JP 5671879A JP 5671879 A JP5671879 A JP 5671879A JP S55147012 A JPS55147012 A JP S55147012A
Authority
JP
Japan
Prior art keywords
resistor
curve
input
circuits
signal
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
JP5671879A
Other languages
Japanese (ja)
Inventor
Ryoji Nakade
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5671879A priority Critical patent/JPS55147012A/en
Publication of JPS55147012A publication Critical patent/JPS55147012A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To enable to obtain greater dynamic range even at the input of large signal with a simple constitution, by combining two diode series connections and two diode and resistor circuits. CONSTITUTION:D18, 19 are connected in series to the diodes D7, 8 as automatic gain control, and the series circuits of D20 and resistor 21, and D23 and resistor 22 are respectively connected parallelly. The voltage-current characteristics are respectively the curves (a) and (b), to the combination of Ds7, 8 and D20 and resistor 21. As to two types of circuits, the characteristics are parallel circuit of both the curves, but when the input signal is small, they are approximated to the curve (a), and the output signal has good linearity and obtains sufficient gain. When the input signal is great, the curve (b) is dominant, and operation is made around the point B, and the linearity is good with the characteristics of the resistor 21 shown in the curve (c). Further, the curve (d) shows the characteristics of D20. Thus, even at the input of large signal, the dynamic range can be taken greater.
JP5671879A 1979-05-04 1979-05-04 Amplifying circuit Pending JPS55147012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5671879A JPS55147012A (en) 1979-05-04 1979-05-04 Amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5671879A JPS55147012A (en) 1979-05-04 1979-05-04 Amplifying circuit

Publications (1)

Publication Number Publication Date
JPS55147012A true JPS55147012A (en) 1980-11-15

Family

ID=13035257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5671879A Pending JPS55147012A (en) 1979-05-04 1979-05-04 Amplifying circuit

Country Status (1)

Country Link
JP (1) JPS55147012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491803A (en) * 1982-11-26 1985-01-01 Tektronix, Inc. Current-limiting mechanism for a precision differential amplifier
US4531097A (en) * 1982-06-22 1985-07-23 Texas Instruments Deutschland Gmbh High frequency amplifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531097A (en) * 1982-06-22 1985-07-23 Texas Instruments Deutschland Gmbh High frequency amplifier
US4491803A (en) * 1982-11-26 1985-01-01 Tektronix, Inc. Current-limiting mechanism for a precision differential amplifier

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