JPS5731208A - Am wave detecting circuit - Google Patents

Am wave detecting circuit

Info

Publication number
JPS5731208A
JPS5731208A JP10511180A JP10511180A JPS5731208A JP S5731208 A JPS5731208 A JP S5731208A JP 10511180 A JP10511180 A JP 10511180A JP 10511180 A JP10511180 A JP 10511180A JP S5731208 A JPS5731208 A JP S5731208A
Authority
JP
Japan
Prior art keywords
high frequency
input
wave
circuit
frequency 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
JP10511180A
Other languages
Japanese (ja)
Inventor
Hideo Oshita
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.)
NIPPON TSUSHINKI KK
Original Assignee
NIPPON TSUSHINKI KK
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 NIPPON TSUSHINKI KK filed Critical NIPPON TSUSHINKI KK
Priority to JP10511180A priority Critical patent/JPS5731208A/en
Publication of JPS5731208A publication Critical patent/JPS5731208A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/08—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements
    • H03D1/10—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements of diodes

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To ensure a good linear wave detection without any distortion of detection and the dependence on the temperature and regardless of the level of a high frequency signal input or the degree of modulation, by previously applying a certain high frequency bias to the high frequency input and then an AM wave detector. CONSTITUTION:A high frequency input signal received an amplitude modulation by a low frequency signal is supplied to an adder circuit 3 through an input terminal 1. While a high frequency bias is applied to the circuit 3 from a high frequency bias oscillating circuit 2, and an addition signal obtained by superposing a high frequency signal input on the high frequency bias is delivered from the circuit 3 to be applied to an AM wave detector 4. With application of the high frequency bias to the high frequency signal input, the virtural degree of modulation is reduced for the high frequency signal input. Then the level of the envelope curve is raised to cope with the linear region of the wave detecting properties of a diode within the detector 4. In such way, a wave detection output free from any distortion of detection can be obtained through an output terminal 5.
JP10511180A 1980-08-01 1980-08-01 Am wave detecting circuit Pending JPS5731208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10511180A JPS5731208A (en) 1980-08-01 1980-08-01 Am wave detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10511180A JPS5731208A (en) 1980-08-01 1980-08-01 Am wave detecting circuit

Publications (1)

Publication Number Publication Date
JPS5731208A true JPS5731208A (en) 1982-02-19

Family

ID=14398724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10511180A Pending JPS5731208A (en) 1980-08-01 1980-08-01 Am wave detecting circuit

Country Status (1)

Country Link
JP (1) JPS5731208A (en)

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